R. Palanisamy

• BE, Mtech, PhD
• Professor (Associate) at SRM Institute of Science and Technology

In this paper, the ammonium polyphosphate (APP) is mixed with epoxy to fabricate APP/epoxy goat horn composites. The composites were obtained by casting method with different weight ratios of APP of 0%, 10%, 15%, and 20% for improving the mechanical and thermal properties. This is the first paper to discuss about both mechanical and thermal propert...

Multilevel inverters have gained significant attention in recent years due to their ability to achieve higher voltage and lower harmonic distortion compared to conventional two-level inverters. Pulse width modulation (PWM) techniques play a crucial role in controlling multilevel inverters by generating the required switching signals for their power...

Photovoltaic (PV) modules may encounter nonuniform situations that reduce their useable power volume, causing ineffective maximum power point tracking (MPPT). Moreover, due to the incorporation of bypass diodes, power-voltage (P-V) graph has multi-peaks when each component of the module receives different solar irradiation. This paper proposes a so...

The development of society and the economy depends on the wise use of renewable energy sources and reduced reliance on fossil fuels. In both industrialized and developing nations, solar energy, which is a significant source of renewable energy, is emerging as a dependable and cost-effective replacement for fossil fuels. In several industries, inclu...

Delrin is the best additional material for metals because of its inherent qualities, such as great wear resistance and tensile strength. The main aim of this work is to investigate how independent variables like feed rate, spindle speed, and depth of cut are significant for dependent variables such as surface roughness, temperature, stresses, and m...

Among various fuel cells (FCs), Polymer exchange membrane FC (PEMFC) plays a vital role in the transportation era because they operate at moderate temperatures, have quick start-up, are highly efficient, have scalable size, have high energy density etc. With a high degree of accuracy, machine learning algorithms (MLAs) can be applied to solve nonli...

This paper presents the design, optimization, and analysis of a tri-band monopole antenna tailored for wireless communication, constructed with a composite FR4 substrate and incorporating split ring resonators (SRRs). The antenna is fabricated on a 19-mm-wide, 31-mm-long FR4 substrate featuring a ground structure integrated with SRRs. Through param...

In recent scenarios, induction motors are used in many different fields due to their small size, advanced technology , and capacity to handle large amounts of power. One of the annoying downsides of conventional AC traction drive systems is the engine's speed and the uncertainty of the ripple content. The goal of the proposed work is to use various...

Solar energy, which is a leading sustainable and renewable source of heat and light, is widely accessible. It is critical to effectively harness this clean and plentiful energy to satisfy the increasing worldwide demand for energy. This study aims to investigate the effects of colour filters and tilt angles on the electrical output characteristics...

Multilevel inverters convert DC power to AC power at the proper output voltage and frequency stage, making them a highly desirable choice for high-power medium voltage switching applications right now. Multilevel inverter design involves the development of specific structures. A novel solar input-dependent space vector pulse width modulation (SVPWM...

A high gain DC-DC converter is the crucial part in renewable energy systems (RES) and in electric vehicular systems. The reliability of those high-gain converters needs to be assessed for the long-term operation of renewable energy systems. This article presents the reliability analysis of non-isolated high gain interleaved DC-DC converter. The ana...

A novel non-isolated high-gain DC–DC converter for green energy employment is presented and analyzed. The proposed converter comprises a switched capacitor cell, passive clamp circuit, coupled inductors, and voltage multiplier unit. An interleaved boost converter (IBC) is placed on the input side of the proposed design. The voltage multiplier unit...

The fundamental principle of the paper is that the soil moisture sensor obtains the moisture content level of the soil sample. The water pump is automatically activated if the moisture content is insufficient, which causes water to flow into the soil. The water pump is immediately turned off when the moisture content is high enough. Smart home, sma...

A high conversion ratio DC-DC converter is crucial for fuel cell electric vehicles (FCEV). A fuel cell-based non-isolated high gain integrated DC-DC converter for electric vehicles is proposed in this paper. The system comprises an interleaved boost converter (IBC) at the source end, a switched capacitor cell, coupled inductors, a passive clamp cir...

span>Solar energy is the most generally accessible energy in the entire globe. Proper solar panel maintenance is necessary to reduce reliance on imported energy. Continuous monitoring of the solar panel's power output is required. The deployment of internet of things (IoT) monitoring of solar panels for maintenance is the basis for the current rese...

Electrocardiography (ECG) is a widely recognized noninvasive method employed in the field of medical science to gather data pertaining to the cardiac rhythm and the present state of the heart. The utilization of automated ECG arrhythmia diagnosis has proven to be beneficial in reducing the workload of clinicians and enhancing the efficacy and effic...

Capacitor Voltage Unbalance and Common Mode Voltage (CMV) issues leads to affects the performance of the inverter, magnitude of load current increase and THD increase. So to diminish unbalance in the capacitor voltage and CMV, a hexagonal based Space Vector Pulse Width Modulation (SVPWM) is implemented for three-phase five-level Neutral Point Clamp...

The solar photovoltaic system demonstrates non-linear characteristics when considering the relationship between the current–voltage (I–V) and power–voltage (P–V) axes. Moreover, small-scale photovoltaic (SPV) systems have a limited potential for generating electricity. The boost converter is the intermediary between the solar power-producing system...

Significance of this research is based on torque controlling strategies in hybrid electric vehicle. The traction motor of a hybrid electric commercial vehicle must have a high power density-to-weight ratio and excellent torque at extremely low speeds. A proportional-integral controller estimates the high-resolution rotor position based on the diffe...

The increasing concerns about greenhouse gas emissions have made it necessary to incorporate environmental constraints in the operation of power systems. The CO2 emission-constrained short-term unit commitment problem (CSCUCP) is a multiobjective optimization problem that involves minimizing both the cost of operation and the CO2 emissions. This pa...

Mechanical structures consist of more number of links, joints and elements combined through operations, such as welding, reverting, fastening etc. Owing to large service periods, these joints would eventually develop stresses internally and thereby joint failure occurs. The complaint damper can be used to reduce joint failure A compliant is a seaml...

This article suggests a method for diminishing the voltage unbalance in a three-phase five-level diode-clamped inverter (DCI) through the use of hexagonal hysteresis space vector modulation (HHSVM). Capacitor voltage balancing leads to enhanced system efficiency, reduced stress on components, enhanced performance, abridged electromagnetic interfere...

The research work is aimed using aluminum matrix surface composite reinforced 5 wt. % Gr (graphite) with 5, 10, 15 wt. % SiC (Silicon Carbide) particles to improve the wear and corrosion characteristics of surface composites by friction stir processing. AA7075-SiC-Gr surface composites dry sliding wear and corrosion characteristics were examined by...

Induction motors are frequently utilized in numerous manufacturing due to their reality, are robust in nature, and have low cost. The bearing of an induction motor is proven to be affected in electric mobility systems that use speed drive systems. In speed drive systems, inverters are used to generate alternating current (AC) from direct current (D...

In order to enhance the fitness of the product and in order to improve productivity in turning operations, greater amount of challenges have been faced. In this paper, we have made a comparative analysis of HSS and carbide coated HSS drills while machining with H13 steel plates. For the drilling operation, process parameters were analysed using the...

One of the excellent choices for compression ignition engines is emulsions. The current experimental analysis deals with transesterified Pongamia biodiesel. This work gives a substantial track to synthesize and to enhance fuel by including aluminium oxide nanoparticles. Emulsification is used to prepare fuel consisting of 88% of Pongamia biodiesel,...

The high-gain DC converter is a crucial step in the conversion process for raising the voltage from PV panels to the desired voltage level in renewable energy applications. This article proposes a three-phase grid connected PV system with a novel interleaved high gain DC converter fed 3-level Neutral-Point-Clamped (NPC) Inverter. The novel high-gai...

This paper gives an idea to simulation of three-dimensional space vector modulation for neutral point clamped multilevel inverter. Three dimensional-space vector modulation (3D-SVM) algorithm is progressed method of two dimensional-space vector modulation (2D-SVM) algorithm; it leads to reduce the complexity in reference vector identification and s...

Titanium dioxide nanofluid is used in the thermosyphon solar flat plate collector at volume fractions of 0.1%, 0.3%, 0.5%, 0.7%, and 1% to test the collector’s effectiveness. The heat transfer coefficient, Nusselt number, friction factor, and pressure drop calculations were used to analyze the impact of adding nanoparticles to the working fluid. Th...

span>A novel matrix converter has been developed for 3-phase to 5-phase conversion using a novel space vector pulse width modulation. The matrix converter organized to generate 5-phase AC output voltage from 3-phase input voltage with help of SVPWM method; bidirectional power switches placed in matrix converter controlled by appropriate switching p...

The insulating material is made from rice husk and epoxy resin which are ecologically friendly and incredibly durable. When coarse Rice husk is mechanically disintegrated, fibrils are formed. By weaving together fibrillated threads, and robust biodegradables, lightweight dielectric fibers are created. Then the Composites are examined utilizing a bl...

One of the most critical operations aspects is power management strategies for hybrid AC/DC microgrids. This work presented power management in hybrid AC–DC microgrids with a droop control strategy. At first, photovoltaic, Wind, and battery are used as the power sources, which supply the power with uncertainties. The AC and DC microgrids are contro...

In this paper, a seven-level triple-times voltage-boosting topology (8S7L-TTB) is proposed, which has Eight Switches as the minimum. This topology is used as a DSTATCOM to eliminate the power quality issues. In a three-phase four-wire distribution system, specific unpredictable issues have emerged through the increase of unbalanced linear and nonli...

In most industrial applications, AC drives are used. These drives require power electronic modules to convert AC to DC and also DC to AC. The power modules used for power conversion consist of power semiconductor switches. There is distortion in the voltage and current obtained from the power modules due to the non-linear behaviors of the semicondu...

Now-a-days, researchers focus on Modular Multi-Level Converter(MMC), due to its modularity structure, effective sharing of voltages among the submodule switches and betterment in the quality of the voltage and current waveforms. Earlier, the conventional unified power quality conditioner is developed with two level voltage source converters connect...

Cryogenic Treatment is one of the heat treatment processes, which is used to develop the wear resistance property of tool material and remove residual stresses in Tool steels for better machining performance. This paper focuses on cryogenically treated T42 tool performance on mild steel as workpiece material. For investigating the machining perform...

In this paper, Three-Dimensional Space Vector Pulse Width Modulation (3DSVPWM) is developed to obtain the performance analysis of a 3-phase matrix converter (MC). MC is used to convert 3-phase fixed AC voltage to 3-phase variable AC voltage, which provides superior performance compared to conventional AC to AC converters. The 9-bidirectional power...

It is important to design the high voltage handling DC-DC converters with single stage conversion to integrate renewable energy resources such as solar PV and fuel cell with electric vehicle applications. This paper elucidates the design and analysis of dual input single output non-isolated cuk derived converter with high step up ratio. The propose...

The major setback faced by any of the production industry was maintaining the surface quality and dimensional accuracy of parts manufactured. Higher productivity is expected from industrial point of view, but resulting in poor surface texture. This work aims at addressing this problem by developing a suitable damping system for increased production...

A high step-up dc-dc converter based on a switched capacitor-coupled inductor (SC-CL) with voltage multiplier cells is proposed. It is composed of a SC-CL and a voltage multiplier module stacked on the load side. SC-CL produces the maximum output voltage with maximum voltage gain. These features make the projected converter suitable for renewable e...

The major hindrance for any production industry in obtaining higher yield is the lack of achieving full material removal rate in the machine tools. If achieved, the surface quality of the machined works will be compromised. An attempt was made in this work to reduce the compromise of surface finish by integrating a plastic compliant damper that is...

A novel traction AC motor is proposed by grouping of magnets and coils in the stator design with aluminium as substantial for the housing of stator and end ring. The stator back iron is designed by Silicon steel. As a result, the magnet can provide more repulsion when revolving the rotor, lowering the input side current. The configuration of the mo...

This article experimentally and statistically reports the convective heat transfer performance of a cylindrical mesh-type heat pipe apparatus filled with ZrO 2-CeO 2 /water-ethylene glycol nanofluids. In this regard, ZrO 2-CeO 2 nanoparticles were synthesized and characterized through the Scanning Electron Microscope and Powder X-ray diffraction me...

Most of the loads used in our day-to-day life are non-linear in nature. To investigate the performance of various non-linear loads, a laboratory setup on different load combinations such as light, fan and drive system in this work. The unbalance in supply voltages, supply current and frequency, reduction in power factor and total harmonic distortio...

In solar thermal applications, the performance of a solar absorber panel with a reflector is critical. In sense, different absorbers are used to enhance thermal efficiency. In addition to this, various coatings on solar absorber panels are introduced, and the performance of the same coated panels are examined with experimental study by design of ex...

According to the modern era, zinc is one of the best replacements for human bio-implants due to its acceptable degradation, nominal degradable rate, and biocompatibility. However, alloying zinc with other nutrient metals is mandatory to improve the mechanical properties. In this research, Zn-4Ti-4Cu was alloyed with calcium and phosphorous through...

Induction motor is popularly used in various applications because of the proposed modest construction, substantiated process, and limited size of specific power. The traditional AC traction drives are experimentally analyzed, there is an existence of high circulating current due to high Common-Mode Voltage (CMV). The high Circulating Bearing Curren...

This paper proposes a novel approach to 4-quadrant speed control of a direct current (DC) motor based on the use of a semi-Z source inverter which has 2 active switches and 2 switching states. The semi-Z source inverter topology is analyzed for design purposes and results and relationships are discussed. The objective of this simulation is to desig...

This paper elucidates the realization of multicarrier pulse width modulation (MC-PWM) based 7-level Z-source cascaded H-bridge inverter. MC-PWM technique is developed to generate switching pulses for Z-source inverter; it leads to boost the inverter output voltage with help of shoot through mode of operation. The output of Z-source inverter is conn...

Most of the fully automated industries are mainly depending on the single and multi-drive system based on their requirements. In this paper, to investigate the power quality problems in a distributed multi drive system connected to the common uncontrolled rectifier is considered. Uncontrolled rectifier is mainly used as a front-end converter to fee...

Drilling is the hole making process on the component face with the aid of a twisted drillbit. Normal drill bits easily wear out through penetration of drill bit into the workpiece material due to force generated in the drilling operation. So this work tries to investigate the machining parameters with cryogenically treated drill bits on various res...

This paper elucidates the implementation of Four-dimensional Space Vector Modulation (4D-SVM) for reduction of Common Mode Voltage (CMV) and Capacitor Voltage Unbalance (CVU) of 3-phase 4-wire 3-level Neutral Point Clamped inverter (3L-NPCI). CMV and CVU are major drawbacks of neutral point clamped inverter circuit; It leads to affect the performan...

Electric vehicles are becoming more demanding these days. In this project the possibility of using Ackerman steering with electric drive servomotor is explained. Scalability is the advantage of using this mechanism which can be adopted for four-wheel vehicle system as well. The objective of this project is to do design a system using Ackerman steer...

An internet of things (IoT) is an exclusive method, were its impact on the enactments of human life is very trendy. This research on library control system operates on the basis of IoT and optical character recognition (OCR) algorithm rules and its training. A closed-circuit television (CCTV) watched mechanism is created to control the book issuing...

Hybrid energy sources are much needed to meet the power demand for various real‐time applications, and the desired output level is attained with the help of various advanced power converter topologies. Here, the hybrid energy source‐fed quasi‐Z‐source cascaded H‐bridge inverter (QZS‐CHI) is implemented for a grid‐connected system. The conventional...

Pulse width modulation (PWM) methods play a major role to control the various power electronic converters to progress the recital of the system. In this paper, a comparative analysis is done for three dimensional space vector modulation (3D-SVM) and four dimensional space vector modulation (4D-SVM) for five-phase voltage source inverter. 3D-SVM met...

Multi-level inverters have outstanding construction, making it feasible to achieve high voltage levels with less THD value. These harmonics can be mitigated by decreasing the number of voltage switches and DC links in the modified cascaded H-bridge multi-level inverter. This research deals with the novel 15-level inverter and reducing the number of...

A variable step size Fuzzy logic based MPPT algorithm is proposed to ensure maximum power extraction from 1.26 kW Proton Exchange Membrane Fuel Cell (PEMFC). The Resonant PWM High Step up Converter (RPHC) is designed with soft switching capability to boost PEMFC output voltage and ensured optimum power tracking during dynamic operating condition by...

This paper elucidates a comparative analysis of hysteresis current control space vector modulation (HCC-SVM) and 3-dimensional space vector modulation (3D-SVM) for control of 3-level neutral point clamped (NPC) inverter. The NPC inverter topology is much suitable for single input applications and medium and high power applications. The detailed com...

span>Amidst the ever-increasing advancements in the technological realm-the electrical vehicle industry too has seen several leaps. This particularly owes to three primary factors one, the fact that we are running out of conventional resources like petrol and diesel; two, higher efficiency of electric vehicles; and finally, less pollution caused by...

In this article, a hysteresis space vector modulation (HSVM) is developed for interleaved Vienna rectifier (IVR) fed 3‐level neutral point clamped inverter (NPCI) system. The minimized current ripple and improved output voltage is obtained using HSVM control technique. The output of IVR is fed with 3‐level NPCI, which provides continuous input sour...

In this paper, three phase four wire five level Neutral Point Clamped Inverter (NPCI) based Static synchronous Compensator (STATCOM) is implemented for reactive power control and neutral current elimination. Three dimensional Space Vector Pulse Width Modulation (3D-SVPWM) control strategy is developed to control this 5-level NPC inverter. The behav...

In this paper, a Four Dimensional Space Vector Modulation (4D-SVM) is implemented for five phase Voltage Source Inverter (VSI) to improve the performance of the inverter. The 4D-SVM control technique generates switching pulses for five phase VSI system. The reference vector for 4D-SVM is identified by tracking subcubes and prisms located in the com...

In this paper, ANN-based MPPT controller is implemented for Proton Exchange Membrane Fuel Cell (PEMFC) powered Interleaved Resonant PWM High Step Up (IRPHS) converter and SVPWM technique is used for three-phase voltage source inverter to reduce THD. The proposed system is energized using PEM Fuel cell (PEMFC) with variable temperature as its output...

Tachometer is a device that used for counting or for the measuring purpose of the number of revolutions (that is the total number rotations made by the device in unit of measuring time) of an object in unit time. It is expressed in the unit of RPS or RPM, the model uses a set of infrared transducer receiver to count the RPM pulses, and the Arduino...

A Non-Isolated High Gain DC-DC converter fed from 1.2kW PEMFC is designed to boost the fuel cell voltage. The Feed-forward Neural Network based MPPT controller algorithm is implemented to adjust the duty cycle of DC-DC converter in order make sure optimum power extraction from PEMFC whose result is compared with Fuzzy Logic Controller. The boosted...

Low power distribution systems have severe power quality issues due to the non-linearity of several residential and industrial loads. The main power quality issue is the harmonics leading to the overheating of the transformers in the distribution systems. By employing passive filters, active filters, and custom power devices, the harmonics in the s...

This paper presents the fuzzy-based Space Vector Pulse Width Modulation (SVPWM) for 5-level Neutral Point Clamped inverter with hybrid energy source fed grid connected system. The proposed scheme is energized using Photovoltaic and Wind energy system combination. The Neural Network-(NN) based Maximum Power Point Tracking algorithm (MPPT) has been i...

This paper identifies the development of an under voltage and over voltage protection in order to avoid damage in load side. Most of the industries and as well as home appliances are very expensive also more sensitive. This may get damaged due to the instabilities in ac mains supply. It can also lead to losses in the electrical circuit. These losse...

An Artificial Neural Network (ANN) based Space Vector Pulse Width Modulation (SVPWM) for five level cascaded H-bridge inverter (CHBI) fed grid connected photovoltaic (PV) system. The multilevel inverter topologies are offers better performance compare conventional two level inverter like reduced total harmonic distortion, less electromagnetic inter...

A Space Vector Pulse Width Modulation (SVPWM) control strategy is implemented for capacitor voltage balancing of Flying Capacitor (FC) based 4-level Neutral Point Clamped (NPC) inverter. This flying capacitor based 4-level NPC inverter is developed for medium voltage and high power applications. This system includes 6 power switching devices, 2 cla...

Space Vector Pulse Width Modulation (SVPWM) for 3-phase nested neutral point clamped multilevel inverter (NNPC-MLI) which is suitable for grid connected (PV) system is implemented. The use of nested NPC topology helps in increasing the level in output voltage of the inverter. The main task of the system is to balance the flying capacitor voltage us...

p>In this paper we introduce a hand controlled robotic vehicle. Hand control robotic vehicle consists of a transmitter module and a receiver module. The transmitter will be placed on a hand glove and the receiver will be placed on the motor drive along with PIC microcontroller and motor driver IC. The RF transmitter sends commands to the IC which t...

A Transformerless three phase Z-source four wire Voltage Source Inverter (VSI) fed grid connected photovoltaic system is implemented and controlled using 3D-Space Vector Modulation (3D-SVM) technique. Generally, the leakage current problem is the main disadvantages of transformerless inverter system; which is controlled and reduced using proposed 3...

Multilevel converters have a significant role in power processing control in the power system, which has some inherent features like reduced harmonics, high power & medium voltage, reduced voltage stress. In this proposed paper, a novel multilevel inverter with reduced number of switches and without passive components. The proposed inverter generat...

This paper explains steps to generate switching pulse using Xilinx-ISE with FPGA processor for DC-DC boost converter. The switching pulse generated using Very high speed integrated circuit Hardware Description Language (VHDL) with Xilinx-ISE. VHDL is a programming language, which is used to model and design any complex circuits in a dynamic environ...

p>Often modern cars have a collision avoidance system built into them known as Pre-Crash System, or Collision Mitigation System in order to reduce the collision. But majority of vehicles on the road, especially heavy motor vehicles lack in such a system. In this paper, the implementation of the Collision Avoidance System is to reduce the risks of c...

A Space Vector Pulse Width Modulation (SVPWM) control strategy is proposed for a three phase five level dual inverter fed open-end winding induction motor. This system includes 2 three level Neutral Point Clamped (NPC) inverters, which is supplied by two isolated dc power supplies. The conventional SVPWM has more complexity in reference vector iden...

In this paper, a three-dimensional Space Vector Modulation (3D SVM) is implemented for minimization of Common-Mode Voltage (CMV) of five-level Neutral Point Clamped (NPC) inverter. The 3D SVM control includes all merits of 2D SVM and provides better control compared to other PWM strategies. The switching state vectors are selected based on the near...