The Open Electrical & Electronic Engineering Journal

2016, 10 : 166-180
Published online 2016 December 30. DOI: 10.2174/1874129001610010166
Publisher ID: TOEEJ-10-166

RESEARCH ARTICLE
 A DC Voltage Control Strategy for Active Power Filter

Xudong Cao , Shaozhe Zhou , Jingze Li and Shaohua Zhang, *

* Address correspondence to this author at the Faculty of Geophysics and Information Engineering China University of Petroleum, Beijing, China; Tel: 86 13391890051; E-mail: caoxudong0707@163.com

ABSTRACT

Active Power Filter (APF) is capable of changing the size and frequency of harmonics as well as changes in reactive power compensation. It is important to control the stability of the DC-link capacitor voltage stability for it. For DC voltage controls of APF, there are two important achievements. First, it is indicated that the control of DC voltage directly affects the compensation performance of APF. Second, the value of DC voltage influences the power loss of APF. This paper firstly introduces the design of the DC voltage controller. Then the relationship between DC voltage and the power loss as well as the compensation performance of APF is analyzed. Finally, a new control scheme with a droop controller is developed to regulate DC voltage.

Keywords:

Active Power Filter, DC-link voltage, Insulated gate bipolar transistors, Open-loop voltage, Sinusoidal pulse width modulation, Three-phase three-wire.