| 引用本文: | 韦钢,陈森环,蔡阳,卢炜.基于瞬时无功功率理论的三相不平衡负荷补偿[J].电力自动化设备,2010,(2): |
| .Compensation for three-phase unbalanced load based on instantaneous reactive power theory[J].Electric Power Automation Equipment,2010,(2): |
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| 摘要: |
| 在研究当前补偿装置的基本原理以及补偿信号检测方法的基础上,针对不平衡负荷下的电力系统提出了一种基于瞬时无功功率理论补偿导纳的新算法。该算法以对称分量法为理论支撑,针对不平衡电路特点,通过理论分析得出以瞬时无功电流表达的补偿导纳通式,以该算法作为静态无功补偿器(SVC)控制策略,可在进行无功补偿的同时实现三相不平衡补偿。为有效改善SVC容量利用率,通过讨论补偿导纳的各种不同情况,对于晶闸管控制电抗器(TCR)并联固定电容型SVC的各项参数进行合理的分析,并总结了在不同的条件约束下所补偿范围的大小。最后结合SVC参数的合理选取,通过多种不同的算例分析验证了算法的正确性、有效性。 |
| 关键词: 不平衡负荷 瞬时无功 导纳算法 补偿 静态无功补偿器 |
| DOI： |
| 分类号:TM714.3 |
| 基金项目:上海市重点学科资助项目(J51301)~~ |
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| Compensation for three-phase unbalanced load based on instantaneous reactive power theory |
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WEI Gang1 CHEN Senhuan1 CAI Yang1 LU Wei2
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| Abstract: |
| The basic principles of current compensation devices and the detection methods of compensation signal are studied and an algorithm based on the instantaneous reactive power theory is proposed to calculate the compensatory admittance of three-phase unbalanced load,which,supported by symmetrical component method, derives the general formula of compensatory admittance,represented as the instantaneous reactive current,by the theoretical analysis according to the characteristics of asymmetric circuit. It can be ... |
| Key words: unbalanced load instantaneous reactive admittance algorithm compensation SVC |
