A novel phase and amplitude controllable voltage regulator

Author

Zhang, Youjun ; Ruan, Xinbo

Author_Institution

Aero-Power Sci-tech Center, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2010

fDate

21-24 June 2010

Firstpage

1888

Lastpage

1894

Abstract

The concept of virtual quadrature source (VQS) was introduced and a novel phase and amplitude controllable voltage regulator (PACVR) was proposed. The single-phase PACVR comprises of a Buck type AC chopper, a 3^rd harmonic trap and a Boost type AC chopper. In relation to the input voltage, the phase and amplitude of the output voltage are regulated respectively. The Buck type AC chopper and the 3^rd harmonic trap regulate the phase and the Boost type AC chopper regulates the amplitude. Based on the single-phase PACVR, the three-phase PACVR is constructed and deduced. The 3^rd harmonic trap could be canceled in the three-phase PACVR, so it has simple structure. The PACVR has potential applications to control power flow in grid and its principle was analyzed in detail. Simulation and experimental results show its feasibility and the correctness of the theory.

Keywords

load flow control; phase control; power grids; voltage control; voltage regulators; 3^rd harmonic trap; amplitude controllable voltage regulator; boost type AC chopper; buck type AC chopper; phase controllable voltage regulator; power flow control; power grid; single-phase PACVR; virtual quadrature source; Choppers; Control systems; Impedance; Load flow; Power engineering and energy; Power harmonic filters; Regulators; Switches; Transformers; Voltage control; 3^rd harmonic trap; AC chopper; phase and amplitude controllable voltage regulator (PACVR); virtual quadrature source (VQS);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5542116

Filename

5542116