Intan Rahayu Ibrahim's research while affiliated with Universiti Teknologi Mara (Pulau Pinang) and other places

Publications (19)

Article
Full-text available
The optimal size of a stand-alone photovoltaic–battery system is necessary to attain a reliable energy supply. This paper presents a modified Honey Badger Algorithm (HBA) as a sizing optimization approach to solve the optimal sizing problem of an AC coupled stand-alone photovoltaic–battery system. At each iteration, the simulation of the modified a...
Article
Full-text available
An optimal design of a hybrid stand-alone photovoltaic system is essential to ensure reliable electricity supply to the loads and low cost of electricity generation. This paper presents an optimal design of an AC coupled hybrid stand-alone photovoltaic system which consists of photovoltaic modules, batteries, grid inverters, bi-directional inverter...
Article
Tremendous promotion and growth of Large-Scale Solar Photovoltaic (LSSPV) Power Plant in Malaysia increase the reliability and potentiality of the system in having efficient monitoring, operation and maintenance for the plants. Through the Ministry of Energy, Science and Technology, the government aims to increase the renewable energy in its genera...
Article
Full-text available
Multilevel inverters are a type of power electronic circuit that converts direct current (DC) to alternating current (AC) for use in high-voltage and high-power applications. Many recent studies on multilevel inverters have used field-programmable gate arrays (FPGAs) as a switching controller device to overcome the limitations of microcontrollers o...
Article
An identification system of multiple-input single-output (MISO) model is developed in controlling dsPIC microcontroller of positive output buck-boost (POBB) converters for module mismatch condition of photovoltaic (PV) system. In particular, the possibility of the scheme is to resolve the mismatch losses from the PV module either during shading or...
Article
This paper presents a simulation and laboratory test of Photovoltaic (PV) module incorporated with Positive Output (PO) Buck-Boost Converter for harnessing maximum energy from the solar PV module. The main intention is to invent a system which can harvest maximum power point (MPP) energy of the PV system in string-connection. The model-based design...
Article
The Dual-power PV-grid energy system was initiated to reduce the capital installation cost of PV energy system and to make use the lower tariff rate offered at off-peak period. In this paper, the system configuration, architecture and operation of the system are described and discussed. The prototype has been developed and runs 24-hours to supply t...
Article
The dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. The power converter in the PV energy system is used to process solar energy captured by PV modules into usable electrical energy. In the dual-power PV-grid system, the power converter c...
Conference Paper
Full-text available
This paper discussed the latest development of single-phase single stage current source inverters for grid connected photovoltaic system. In general, the single-phase single stage inverters are categorized into four types of topologies: 1) H-Bridge, 2) buck-boost, 3) flyback type chopper and 4) Z-Source inverter. The inverters are compared and eval...
Conference Paper
Dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. The power converter system consists of a boost regulator to boost and regulate PV outputs to fixed voltage of 240V, 50Hz, a maximum power point tracking (MPPT) to derive maximum power from...
Article
Dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system and simulation design of the system is discussed to evaluate the design parameters which affect the design performance of the power converter. It consists of a boo...
Article
Full-text available
Dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system configuration, architecture and operation of the dual-power PV energy system are described and discussed. From the review of various multilevel inverter topologies...
Article
Full-text available
Dual-tariff PV energy system was introduced to maneuver the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. In this paper, the system configuration, architecture and operation of the dual-tariff PV energy system are described and discussed. A 2.4 kW prototype system has been developed and run 24...
Article
Full-text available
The virtual monitoring system has rapidly increased its popularity because of its graphical based programming especially for data acquisition and measurements. In order to monitor the performance of the system especially for renewable energy (REN) source application such as solar photovoltaic (PV), data-acquisition systems had been used to collect...
Article
Full-text available
The solar Photovoltaic (PV) systems have been gradually growing on demand in Malaysia. One of the main objectives in developing the solar PV plant is on the cost effective feed-in tariff (FIT). The aim of this paper is to design and analyse the cost-benefit of a small scale guard house in Universiti Teknologi MARA (UiTM) Pulau Pinang, Malaysia whic...
Conference Paper
This paper presents studies on control electronics implementation of single-phase matrix converter operating as AC-DC converter with active power filter. The control electronics uses discrete integrated circuits (ICs) for analogue control whilst the peripheral interface controller (PIC) for digital control implementation. Comparisons are made on th...

Citations

... The classical "H-Bridge" and "PWM (Pulse Width Modulation)" drive circuits are often employed to control the motor's rotation direction and speed in the LATM control system [25]. The "H-Bridge" consists of four field-effect tubes, namely two PMOS (Posi- ...
... There are two types of load when dealing with PV module; either can be connected to grid or specified load, also known as Grid-Connected PV (GCPV) or Off-Grid PV (OGPV) [27][28][29][30][31] respectively. ...
... The switching angles were pre-calculated offline using the modified hybrid PSO (MhyPSO) algorithm in MATLAB software. The MhyPSO algorithm was designed to produce optimised switching angles (θ 1 -θ 10 ) with reduced odd harmonic content [15,46]. Additionally, the dead times between the upper and lower IGBT switches were also considered at the initial stage of MhyPSO algorithm development. ...
... The overall design methodology for the implementation inverter application is illustrated in Fig. optimized switching angles for the 5 pre-calculated offline using the SHE technique with Detailed information on the SHE technique with PSO algorithm can be referred here [22]. ...
... Since these inverters are tied with the grid station therefore, known as grid tied inverters. Inverters are categorized as single phase and three phase and deep literature has been already presented in [2,3] regarding grid interconnection. Much of the research work presented in the past have focused in controlling the grid tied inverters based on high order filters as commonly employed in distributed power generation systems (DPGSs). ...
... Dual-tariff of peak/off-peak tariff was applied by I. R Ibrahim [14] on a PV system with a goal to lower the capital installation cost of a PV electrification system as well as reducing the electricity bill paid to the utility. The proposed dual-tariff PV system is an off-grid system equipped with a change-over circuit to allow two modes of operation, during day time (7.00am-6.59pm) ...
... In [39], an evolution of this technique is adopted for a SPMC operating as an AC/DC converter. Instead of the current through each bidirectional switch, the output current of the converter is used to choose the adequate switching sequence. ...
... Owing to the effect of the surrounding system, variable voltages are issued because they are not adequately monitored and cleaned on a regular basis. In practice, this stand-alone device is suitable for remote areas and systems where other power sources are either inefficient or inaccessible for electrical power supply [3]. Thus, the device would never supply the data collector with the actual data. ...
... Some examples of automation and measurements systems based on commercial DAQ cards were described in [20,21,48]. A wireless remote monitoring and control system based on Digital Signal Processor (DSP) applied to solar photovoltaic system was designed by López et al. in [47]. ...