| 一种新型H桥五电平有源中点钳位逆变器控制策略 |
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| 引用本文： | 邵俊波,徐晓康,邱长青.一种新型H桥五电平有源中点钳位逆变器控制策略[J].船电技术,2020(2):4-7. |
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| 作者姓名： | 邵俊波 徐晓康 邱长青 |
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| 作者单位： | 船舶综合电力技术重点实验室 |
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| 摘 要： | 保持母线中点电位和悬浮电容电压的稳定是H桥型五电平有源中点钳位型逆变器稳定工作的前提。针对上述问题,本文在载波层叠调制策略的基础上,分析不同开关状态对悬浮电容电压的影响,通过选择合适的冗余开关状态实现悬浮电容电压的稳定;对于母线中点电位平衡控制问题,提出了修正H桥左右桥臂参考波电压比例分配实现平衡控制,最后通过Matlab/Simulink仿真结果验证所提控制策略的有效性。
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| 关 键 词： | H桥型五电平有源中点钳位型逆变器 母线中点电位 悬浮电容电压 载波层叠调制 |
A Novel Control Strategy of Five-level H-bridge Active Neutral-point-clamped Inverter |
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| Shao Junbo,Xu Xiaokang,Qiu Changqing.A Novel Control Strategy of Five-level H-bridge Active Neutral-point-clamped Inverter[J].Marine Electric & Electronic Technology,2020(2):4-7. |
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| Authors: | Shao Junbo Xu Xiaokang Qiu Changqing |
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| Institution: | (Science and Technology on Ship Integrated Power System Technology Laboratory,Wuhan 430064,China) |
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| Abstract: | The main problem of five-level H-bridge active neutral-point-clamped inverters is the voltage balancing of the dc-link and flying capacitors.In order to solve this problem,the proper redundant states are selected to keep the voltage balancing of flying capacitors,after analyzing the effects of all redundant states on flying capacitors.Besides,an neutral-point voltage balancing method based on adjusting the proportion of reference voltage between left and right arms is presented.Finally,the simulation by Matlab/Simulink is stated and the results confirm the effectiveness of the method mentioned above. |
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| Keywords: | active neutral-point-clamped inverter(ANPC) DC-link capacitor flying capacitor phase disposition PWM |
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