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| Key Techniques in Project Application of Injection Type Active Power Filter |
| Qi Mingjun1, 3, Luo An1 Liu Dingguo2 |
| 1. Hunan University Changsha 410082 China 2. Hunan Electric Power Test and Research Institute Changsha 410007 China 3. Hunan Electric Power Company Changsha 410007 China |
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Abstract The fundamental voltage undertaken by the active part of injection type active power filter (ITAPF) is small because the injection circuit in the topology of ITAPF, so it is suitable for suppressing large-capacity harmonic in high voltage power grid. However, in the project engineering, because of the injection circuit, there are some problems such as the contradiction between harmonic voltage undertaken by fundamental resonance circuit should be small and injection ability of harmonic current should be good, the DC-voltage raising of ITAPF, the harmonic compensation precision is low because of phase delay of injection current caused by injection circuit. Based on sufficient analysis, this paper proposes some methods to solve these problems, including optimizing design of injection circuit, controlling DC-voltage adopting PWM rectifier, selective frequency phase compensation control. Simulation and project application results confirm the validity and feasibility of the methods proposed above.
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Received: 12 March 2008
Published: 12 February 2014
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作者简介
漆铭钧 男, 1962年生, 高级工程师, 博士研究生, 主要从事电力系统谐波抑制及无功功率补偿和电力系统及其可靠性的研究。
罗 安 男, 1957年生, 教授, 博士生导师, 主要从事电气工程和控制科学与工程方面的教学和科研工作。
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2009, Vol. 24 
