| 同步检测法的改进及其在三相不对称无功补偿中的应用 |
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| 引用本文： | 丁洪发,段献忠,何仰赞.同步检测法的改进及其在三相不对称无功补偿中的应用[J].中国电机工程学报,2000,20(6):17-20,52. |
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| 作者姓名： | 丁洪发 段献忠 何仰赞 |
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| 作者单位： | 华中科技大学电力工程系,湖北省,武汉市,430074 |
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| 基金项目： | 国家攀登计划B子项目(B-2-F)及华中电力集团公司资项目助。 |
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| 摘 要： | 电力有源滤波器能动态补偿不对称三相电路中的谐波分量、不对称电流分量及无功电流分量,为此需快速、准确地检测出这些电流分量。该文对传统的电流同步检测法进行了改进使其能实时检测出不对称三相电路中的谐波电流分量、不对称电流分量及无功电流分量之和,并将其在于三相冰对称无功补偿。理论推导和数字仿真验证了该文思想的正确性。
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| 关 键 词： | 同步检测法 电力有源滤波器 无功补偿 |
IMPROVEMENT OF SYNCHRONOUS DETECTION METHOD AND APPLICATION FOR VAR COMPENSATION OF UNBALANCED THREE-PHASE SYSETMS |
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| DING Hong-fa,DUAN Xian-zhong,HE Yang-zan.IMPROVEMENT OF SYNCHRONOUS DETECTION METHOD AND APPLICATION FOR VAR COMPENSATION OF UNBALANCED THREE-PHASE SYSETMS[J].Proceedings of the CSEE,2000,20(6):17-20,52. |
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| Authors: | DING Hong-fa DUAN Xian-zhong HE Yang-zan |
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| Abstract: | Active power filter used in
unbalanced three-phase circuit can dynamically compensate current components, which
include harmonic, unbalanced and reactive current components. So these current components
should be detected fast and accurately. For this purpose, a new method has been proposed
in this paper to improve the conventional synchronous detection method and used for Var
compensation of the unbalanced three-phase systems. The theoretical analysis and digital
simulation verify the feasibility of this method. |
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| Keywords: | synchronous detection method active power filter unbalance Var compensation |
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