| 引用本文: | 高东辉,杜少武,张长征.改进型混合级联多电平有源电力滤波器的研究[J].电力系统保护与控制,2014,42(1):40-46.[点击复制] |
| GAO Dong-hui,DU Shao-wu,ZHANG Chang-zheng.Research on an improved hybrid cascade multilevel active power filter[J].Power System Protection and Control,2014,42(1):40-46[点击复制] |
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| 摘要: |
| 针对高压有源电力滤波器，为了减小有功损耗且提高补偿性能，提出一种改进型混合级联多电平拓扑结构，等效为电压源与电流源相串联。电压源由混合级联27电平变换器构成，其输出电压的基波分量与高压配电网电压相抵消，从而为电流源的运行提供了很低的电压环境。电流源由PWM变换器构成，其额定功率很小，IGBT开关频率较高，从而使得有源电力滤波器具有极好的补偿性能。有源电力滤波器的主要功率由开关频率50/60 Hz的方波变换器输出，从而使得有源电力滤波器的总损耗很小。理论分析与仿真结果证明了该新型拓扑结构的有效性。 |
| 关键词: 有源电力滤波器 高压 损耗 补偿性能 混合级联多电平 |
| DOI：10.7667/j.issn.1674-3415.2014.01.006 |
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| 基金项目:国家自然科学基金项目(51177037) |
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| Research on an improved hybrid cascade multilevel active power filter |
| GAO Dong-hui,DU Shao-wu,ZHANG Chang-zheng |
| () |
| Abstract: |
| In order to reduce the active power loss and improve the compensation performance of high-voltage active power filter, an improved hybrid cascade multi-level topology is proposed, which is equivalent to series between voltage source and current source. The voltage source is constituted by hybrid cascade 27-level converter. The fundamental component of the output voltage offsets the high voltage power grid’s voltage, thus provides a low voltage situation for the current source. The current source is constituted by PWM converter, which has small rated power and high IGBT switching frequency, which makes the active power filter have excellent compensation performance. The main power of the APF is output by the square wave converter which has 50/60 Hz switching frequency, thus making the APF have small total loss. Theoretical analysis and simulation results show the effectiveness of the new topology. |
| Key words: active power filter high voltage loss compensation performance hybrid cascade multi-level |
