| 级联H桥APF软启动方式的研究 |
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| 引用本文： | 汪玉凤,段本涛,冯颖.级联H桥APF软启动方式的研究[J].电源学报,2018,16(4):157-161. |
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| 作者姓名： | 汪玉凤 段本涛 冯颖 |
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| 作者单位： | 辽宁工程技术大学电气与控制工程学院;国网辽宁省电力有限公司铁岭供电公司 |
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| 基金项目： | 国家自然科学基金资助项目（51307076） |
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| 摘 要： | 针对级联H桥多电平有源滤波器APF(active power filter)在投入电网启动过程直流侧电容电压上升对级联APF的冲击问题,在不改变级联拓扑结构的前提下,提出一种适用于级联APF的软启动方式。整个软启动过程包括预充电阶段、升压充电阶段和切除充电电阻阶段,可以有效地将级联APF的电容电压充电至设定值,不会对APF造成冲击。级联H桥七电平仿真和实验验证了所提方法的正确性和可行性。
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| 关 键 词： | 级联多电平 有源电力滤波器 电压冲击 软启动 |
| 收稿时间： | 2016/6/7 0:00:00 |
| 修稿时间： | 2018/1/5 0:00:00 |
Research on Soft-start Mode of Cascaded H-bridge APF |
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| WANG Yufeng,DUAN Bentao and FENG Ying.Research on Soft-start Mode of Cascaded H-bridge APF[J].Journal of power supply,2018,16(4):157-161. |
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| Authors: | WANG Yufeng DUAN Bentao and FENG Ying |
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| Affiliation: | Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China,Faculty of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China and Tieling Power Supply Company, State Grid Liaoning Electric Power Supply Co., Ltd, Tieling 112000, China |
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| Abstract: | When a cascaded H-bridge multi-level active power filter(APF) is input to power grid, the capacitor vo-ltage surge on DC-side will impact the cascaded APF in the start-up process. To solve this problem, under the premise of not changing the cascaded topology, a soft-start mode suitable for a cascaded APF is presented. The whole soft-start process includes one precharge stage, one boost charging stage, and one stage where the charging resistor is resected. In this way, the capacitor voltage of the cascaded APF can be charged to a preset value, which will not impact the APF itself. The correctness and feasibility of the proposed method were verified by simulations and experiments conducted on a cascaded 7-level H-bridge APF. |
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| Keywords: | cascaded multi-level active power filter(APF) voltage surge soft-start |
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