In this paper, a new three-phase four-wire distribution static compensator (DSTATCOM) based on a T-connected transformer and a three-leg voltage source converter (VSC) is proposed for power quality improvement. The T-connected transformer connection mitigates the neutral current and the three-leg VSC compensates harmonic current, reactive power, and balances the load. Two single-phase transform...

–With the widespread use of harmonic generating devices, the control of harmonic currents to maintain a high level of power quality is becoming increasingly important. An effective way for harmonic suppression is the harmonic compensation by using active power filter. This paper presents a comprehensive survey of DSTATCOM control strategies put forward recently. It is aimed at providing a broad...

–A Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency that results in a failure or a mis-operation of end user equipments. Utility distribution networks, sensitive industrial loads and critical commercial operations suffer from various types of outages and service interruptions which can cost significant financial losses. With the restructuring of p...

The application of power semiconductor devices in the area of power electronics and power system are the key factors which kindle the power quality problems particularly the harmonics, burden of reactive power and neutral current due to unbalance. The above citied power quality problems are predominant due to wide usage of 1-φ / 3-φ , linear and nonlinear loads which are fed from three phase fo...

The hybrid renewable energy harvesting and grid integration system has been proposed validated in this work. uses a Wind Energy Conversion System (WECS) Solar Photo Voltaic (SPVECS). WECS Permanent Magnet Synchronous Generator (PMSG) driven by wind turbine. variable frequency voltage output of PMSG is rectified Diode Bridge Rectifier (DBR) stepped up Super Lift Luo Converter (SLLC 1), finally, ...

This paper presents the three topologies of three-phase four-wire DSTATCOM for reduction of harmonics, reactive power compensation, increasing power factor, which occur due to a nonlinear load, environment problem and polluted grid. The performances of the above topologies have been compared for the magnitude of source current, power factor improvement, DC-link voltage regulation, and total har...

Now-a-days for effective load compensation, a conventional three-level neutral point clamped (CNPC) inverter topology is more preferably used. This compensator, however, faces the problems of additional clamping diodes, which reduces the redundant switching states and improves the problem of capacitor voltage imbalance; further increasing the inverter cost. In this paper, a detailed analysis of...

In this paper, a single-phase Seven-Level and Five-Level cascaded H-Bridge Inverter (CHB) based Distribution Static Compensator (DSTATCOM) is presented. A simple control algorithm based on inverse park PLL was proposed for both five-level and seven-level inverters. Synchronous Reference Frame theory (SRF) as control algorithm is used for reference source current extraction and to generate gatin...

Utility and customer-side disturbances result in bus voltage fluctuations, transients, and waveform distortions on the distribution system. Just as flexible AC transmission systems (FACTS) permit to improve the reliability and quality of transmission systems, these controllers can be used in the distribution level with comparable benefits for bringing solutions to a wide range of problems. In t...

Three-phase three-wire Distribution Static Compensator (DSTATCOM) with Photovoltaic (PV) array or battery operated DC-DC boost converter is proposed in this paper. The proposed DSTATCOM consists of a three-leg Voltage Source Converter (VSC) with a DC bus capacitor and it provides continuous reactive power compensation, source harmonic reduction and load compensation throughout the day. With the...