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| 摘要: |
| 有源电力滤波器的谐波电流检测环节决定系统的补偿性能。针对基于park变换的dq检测方法．对基于该方法的电流检测误差进行深入分析，包括锁相环鉴相的频率和相位误差对检测误差的影响．以及低通滤波器对检测误差的影响。探讨了不同电压环境下的误差形成原因，得出直流侧电压调整参考量在不平衡电压下影响检测精度等结论，并通过仿真验证。 |
| 关键词: 有源电力滤波器 谐波 dq电流检测 误差 |
| DOI： |
| 分类号:TN713.8 |
| 基金项目: |
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| Detection error analysis of active power filter |
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TANG Lei CHEN Wei-rong
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| Abstract: |
| The harmonic current detection of APF(Active Power Filter) decides its compensation performance. The d q detection method based on park transformation is researched,and its current detection error is analyzed deeply,including influences of the frequency and phase errors of PLL(PhaseLocked Loop) and the lowpass filter on current detection error. The causes are discussed under different voltage environments. Conclusions,such as the DC voltage adjustment influences the detection precision when voltage is unbalanced,are drawn and verified with simulation. |
| Key words: active power filter harmonic dq current detection error |
