Issa Bartarseh

• Ph.D.
• Professor of Electrical Engineering at University of Central Florida

The derivation of small signal model of bidirectional dc-dc dual active bridge (DAB) converter under multi-phase shift including the conventional single phase shift (SPS), dual phase shift (DPS) and triple phase shift (TPS) modulation is presented in this paper. Full order continuous time generalized average model has been developed for different m...

This paper introduces a combination of two proposed efficiency improvement techniques for a microinverter with current mode control zero-voltage switching output stages. The first technique is dynamic dead-time optimization wherein pulse width modulation dead times are dynamically adjusted as a function of load current. The second method is advance...

In this paper, an interactive web-based circuit simulator tool (CirSim) is presented to enhance students learning skills and assist them to grasp the basic concepts of the preliminary electrical engineering courses by providing innovative methods for interactive teaching and testing. The project aims to achieve the following goals: 1) Develop enhan...

In general, DC-DC converter is a highly nonlinear system. More than one decade ago, many researchers have approved that DC-DC converters are experiencing bifurcation and chaotic oscillations. In this paper, both DC-DC Buck and Boost converters are been studied and analyzed. The study showed that such DC-DC converters are experiencing a nonlinear be...

This paper presents a method of designing optimal integer- and fractional-order proportional–integral-derivative (FOPID) controllers for a boost converter to gain a set of favorable characteristics at various operating points. A Pareto-based multi-objective optimization approach called strength Pareto evolutionary algorithm (SPEA) is used to obtain...

Boundary conduction mode (BCM) zero voltage switching (ZVS) current control is a promising soft switching method for microinverter applications. In this letter, different BCM ZVS current control modulation schemes are compared based on power losses breakdown, switching frequency range, and current quality. Compared to continuous conduction mode cur...

This paper proposes a new single-phase inverter topology for Photovoltaic (PV) applications. The capability of decoupling the double-line-frequency ripple, using a small capacitance, is the main feature of the proposed topology. This allows for using a film capacitor instead of an electrolytic capacitor, resulting in higher inverter reliability. Ad...

This paper describes a Boundary Mode Forward-Flyback Converter (BMFFC) with zero-voltage switching that is able to process power efficiently. The theoretical analysis and operating principle of the BMFFC are presented in detail. A non-dissipative LC snubber that recycles energy to the input source is employed in order to suppress the voltage spike...

Incident solar power on a PV panel is highly variable due its dependence on weather, time of the day and shading which forces the micro-inverter to operate at light loads for a significant period of its operation time. Poor light load efficiency of power converters further reduces the effective power available. This paper proposes a control techniq...

DC-link voltage control plays a key role for two-stage micro-inverter application. Modeling &analysis of dc-link voltage is investigated in this paper. The first-stage circuit employs transient maximum power point tracking method to realize fast MPP tracking without causing output distortion and dc-link variation. In order to keep dc-link voltage c...

Renewable energy has unique characteristics such as it is sustainable, clean and free. However, renewable generation systems have two major limitations: they are strongly dependent on the weather conditions, and they have unsynchronized generation peaks with the demand peaks, in general. In a series of two papers, an energy management strategy for...

This paper proposes a soft switching technique for dc/ac inverters, by using duty cycle and frequency modulation. Zero voltage switching (ZVS) is achieved through controlling the inductor current bidirectional in every switching cycle. This technique requires no additional resonant components and can be employed for various low power applications o...

The interactive technical electronic book, TechEBook, currently under development at the University of Central Florida, provides a useful tool for engineers and scientists through unique features compared to the most used traditional electrical circuit textbooks available in the market. TechEBook has comprised the two worlds of classical circuit bo...

This chapter gives a technical review of current research in high frequency power factor correction (PFC), including the definition of power factor (PF) and total harmonic distortion (THD), configuration of PFC circuit, discontinuous conduction mode (DCM) input technique, and continuous conduction mode (CCM) shaping technique. Research on harmonic...

In general, DC-DC converter is a highly nonlinear system. More than one decade ago, many researchers have approved that DC-DC converters are experiencing bifurcation and chaotic oscillations. In this paper, DC-DC buck converter is been studied and analyzed. The study showed that such DC-DC buck converter is experiencing a nonlinear behaviour (chaot...

This chapter presents an overview of power metal oxide semiconductor field effect transistor (MOSFET). One of the main contributions that led to the growth of the power electronics field has been the unprecedented advancement in the semiconductor technology, especially with respect to switching speed and power handling capabilities. Unlike the late...

The conventional voltage source inverter for motor drive encountered severe problems such as high EMI, wide range of harmonics, heavy acoustic noise and low efficiency. Resonant DC-link inverter technique becomes dominate in solving the above problems due to its simplicity in both power stage topology and control strategy. In this paper, operation...

Because of their reduced switching loss, DC-to-DC resonant converters have been widely used in the design of small size and light weight power supplies. The steady state and dynamic behaviors of the conventional series and parallel resonant converters have been thoroughly analyzed, as well as the small signal models around given nominal operating p...

Current methods for evaluating student performance and providing feedback to students regarding their understanding of a given subject are very dependent on traditional methods of evaluation, mainly in-class examinations. In this paper we propose an on-line, interactive, self-learning Java-based software package known as QuizMe to assist instructor...