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| 摘要: |
| 在对三相四线制系统几种特殊情况分析的基础上，应用叠加原理，采用星形和三角形两种接线方式组合，得出一般三相不平衡负载平衡化无功补偿公式，可消除不对称负荷产生的负序和零序电流分量，保持系统对称。该公式既适合于三相三线制系统，也适合于三相四线制系统。仿真结果表明，该补偿方法对于不同接线方式的不平衡负荷都具有较好的补偿效果，证明了理论推导的正确性。 |
| 关键词: 不平衡负载 三相四线制 负荷补偿 |
| DOI： |
| 分类号:TM7143 |
| 基金项目: |
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| Reactive power compensation for unbalanced current |
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SHAN Tie-ming YANG Ren-gang
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| Abstract: |
| Several special conditions of three-phase four-wire system are analyzed. According to the superposition theorem and applying both star- connection and delta- connection,a set of reactive power compensation formula for general three- phase unbalanced load is brought forward to eliminate the negative and zero sequence current components caused by unbalanced load for system balance. It is suitable for both three-phase three-wire system and three-phase four-wire system. The simulative results show the compensation effectiveness on the unbalanced load with different connection,which verifies the correctness of theoretical deduction. |
| Key words: unbalanced load current,three -phase four-wire,load compensation |
