TAILIEUCHUNG - A DC voltage control strategy for active power filter

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. | 166 The Open Electrical Electronic Engineering Journal 2016 10 166-180 Send Orders for Reprints to reprints@ BENTHAM OPEN CrossMark The Open Electrical Electronic Engineering Journal Content list available at TOEEJ DOI 1874129001610010166 RESEARCH ARTICLE A DC Voltage Control Strategy for Active Power Filter 1 s-s rtt 1 r rt T T 1 - 1 1 r rt Xudong Cao Shaozhe Zhou Jingze Li and Shaohua Zhang Faculty of Geophysics and Information Engineering China University of Petroleum Beijing China Received May 04 2016 Revised July 01 2016 Accepted July 15 2016 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. 1. INTRODUCTION For an Active Power Filter APF it is important to control the stability of the DC-link capacitor voltage stability. As mentioned in 1 - 4 the premise condition for APF working normally is that the DC-link voltage should be greater than the line voltage peak and the minimum DC-link voltage in the linear modulation range is given. In 1 2 the influence of DC-link voltage reference value the grid phase voltage RMS on the compensation performance of APF is analysed and .

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