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Shunt Active Power Filter Control Algorithm

Author: YaoJie
Tutor: GuanZhiHong
School: Huazhong University of Science and Technology
Course: Control Theory and Control Engineering
Keywords: APF Hysteresis control Repetitive Control Iterative PI control
CLC: TN713.8
Type: Master's thesis
Year: 2009
Downloads: 89
Quote: 0
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Abstract


Harmonic pollution issues to the quality of power supply poses a severe challenge , active power filter (APF) as the most effective solution harmonic governance , became a hot research . With the APF main circuit structure has gradually matured, current control scheme is good or bad performance of an impact APF one of the most important factors . The existing control methods are more different control algorithms have their own advantages and disadvantages for different harmonic source select the appropriate control methods , will be able to play better system of governance APF harmonic role. In this paper, parallel active power filter as the research object , analyzes its basic working principle, a mathematical model is derived as the basis for the main circuit capacitors , inductors and other parameters of design principles for the subsequent simulation studies provide strong theoretical support . This article will focus on hysteresis control , proportional integral parallel repetitive control , iterative algorithm is applied to three control PI control APF system current loop control , and conducted in-depth comparative study . The principle of combining various control algorithms derived hysteresis loop width and switching frequency between function and iteration proposed repetitive control PI control in the \Finally, we set up the software through Saber -phase three -wire shunt APF system simulation platform , the choice based on instantaneous reactive power theory of harmonic detection method , from different angles of three control algorithm compares the performance of the system under the APF is given simulation waveform , spectrum analysis and comparative data , verify the hysteresis control linkages between various parameters , PI PI control repetitive control and iterative similarity in performance of , and under the control algorithm APF system response speed , steady-state accuracy and dynamic performance , robustness, and the degree of influence by the switching frequency and other aspects of a detailed comparative study , the final simulation results were summarized, conclusions for different harmonic source user to select the appropriate control algorithm has a certain reference value .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Filtering techniques,the filter > Active filter
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