An increasing intake of grid-connected inverters could change the characteristics low voltage networks including equivalent grid impedance seen by each inverter at its point common coupling. This can impact overall performance inverters, and thus it becomes necessary for to estimate online. However, there are some challenges when comes estimation using inverters. These include accuracy associat...

Grid-connected inverters is the core component of distributed generation system, and filter inverters. When inverter works, can effectively suppress high-frequency harmonics in output current side, so as to ensure stability power grid improve working effect whole connected system. The a high order underdamped LLCL Filter also has resonance peak. In this paper, weighted method based on active da...

This paper presents an improved control strategy for parallel inverters so as to better manage power sharing among the distributed generation units in a microgrid. The proposed control strategy combines both power and voltage control schemes implemented on the voltage source inverters which are used as power electronics interface systems for conversion of power generated by fuel cell and photov...

 The resonance between power-factor-correction capacitors and the line reactance is a common cause for harmonic problems in traditional power systems. Grid-connected inverters integrating renewable energy sources into the grid exhibit capacitive output impedance at harmonic frequencies and may also resonate with the grid impedance. In addition to possible amplification of current and voltage ...

The power quality of a low voltage distributed network is vulnerable to the plunge of a large number of distributed power sources, which could be at serious risk due to high circulating current. In order to overcome this problem, this paper proposes an active power-magnitude and reactive power-frequency droop control scheme for distributed voltage source inverters without a communication line. ...