With the move towards decarbonization of energy system and increased use renewable generation, number power electronics converter interfaced resources connecting to grid is growing. These converters have fast dynamics determined by control algorithms, which leads significant changes in impedance characteristics system. Based on practical experience, concerns grown about interactions between can...

Multilevel Inverters has big placement advantages in Power Electronics and its application can be mentioned to FACTS tools such as UPFC – D-STATCOM. Therefore, nowadays Multilevel Inverters have created vast field’s research and researchers are trying to present appropriate structures with fewer keys and greater advantages. The main advantages of Multilevel Inverters mentioned are low-key volta...

In this paper we present ultra low-voltage (ULV) floating-gate (FG) CMOS differential analog inverters. The analog inverters may operate with a supply voltage below 1V with programmable current levels. The current level or rather the effective threshold voltage in FG-circuits can be programmed to appropriate values for different applications. The analog inverters presented in this paper may be ...

─ the paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc link capacitors voltage imbalance in flying capacitor multilevel inverter with more than three levels are highlighted. Computer simulation i...

The single-phase transformerless grid-connected photovoltaic (PV) systems, mainly the low-power single-phase systems, require high efficiency, small size, lightweight, and low-cost grid-connected inverters. However, problems such as leakage current, the DC current injection and safety issues are incorporated with transformerless grid-connected PV inverters. Besides, the new standards such as Lo...

In order to study the influence of system parameters on the stability and dynamic performance of combination-configuration microgrid based on droop control, small-signal model is established at the point of steady state. By calculating the eigenvalues of state matrix, the small-signal stability of combination-configuration microgrid can be directly analyzed. Based on sensitivity analysis, the k...

Multilevel converter technology has emerged as a very important alternative in the area of high-power medium voltage energy control. The voltage source inverters produce a voltage or a current with levels either 0 or ±V dc they are known as two level inverters. To obtain a quality output voltage or a current waveform with a minimum amount of ripple content, they require high switching frequency...

Microgrids (MG) are small-scale electric grids with local voltage control and power management systems to facilitate the high penetration grid integration of renewable energy resources (RES). The distributed generation units (DGs), including RESs, connected (micro) through electronics-based inverters. Therefore, new paradigms required for frequency regulation by inverter-interfaced DGs (IIDGs)....

In the modern power grid, with growing penetration of renewable and distributed energy systems, use parallel inverters has significantly increased. It is essential to achieve stable operation reasonable sharing between these inverters. Droop controllers are commonly used control in an inverter-based microgrid. this paper, a small signal model droop secondary loop internal model-based voltage cu...