With the rapid developments and use of non linear loads, the controlling over the harmonic current to get and maintain power quality is becoming more important. Active power filters has been used to compensate the harmonic pollution in our power system. This paper presents a efficient model to compensate the current harmonics using the inverter based Shunt Active Power Filter, Passive Power Fil...

This paper proposes a back electromotive force estimation error compensation method for accurate rotor position estimation of surface mounted permanent magnet synchronous motors. When estimating the rotor position of surface mounted permanent magnet synchronous motor sensorless drives, a direct current offset error component occurs in the voltage sensor. As a result, the rotor position is disto...

In this paper, an adaptive version of the impedance-conditioned phase-locked loop (IC-PLL), namely IC-PLL (AIC-PLL), is proposed. The has recently been proposed to address issue synchronisation with a weak AC grid by supplementing conventional synchronous reference frame (SRF-PLL) additional virtual impedance term. resulting aims synchronise converter remote and stronger point in grid, hence in...

Power quality is one of the major concerns in the present era. The problem of voltage sags and swells and its major impact on sensitive loads are well known. To solve this problem, custom power devices are used. One of those devices is the Dynamic Vol tage Restorer (DVR), which is one of the most efficient and effective modern custom power devices used in power distribution networks. A new cont...

when power systems are expanded and connected together with weak tie lines, the low-frequency oscillations are increased and the stability margin of the power system decreases. therefore, when designing the transmission system to be used, it is necessary to maintain the dynamic stability of the power system, and to make sure to have the most possible stability margin. sssc is a facts device con...

The application of power electronics equipment in medium voltage (MV) distribution grids can provide new management solutions for flow control, load balancing and problems. A series MV VSC-based controller has recently been presented to interconnect two radial feeders performing active reactive transfers improve the flexibility utilization these circuits a controlled secure way. Although not pr...

Current distortion degrades power quality and affects system performance, especially for sensitive loads that require pure sinusoidal waves. Owing to its excellent dynamic response, a well-designed active filter (APF) can achieve total harmonic (THD) within the acceptable limits defined by IEEE 3002 standards through compensating distortions. The APF consists of two main modules: reference sign...