| 引起三级电压源逆变器直流侧电容电压变化的原因 |
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| 引用本文： | 许其品,陈贤明,许和平. 引起三级电压源逆变器直流侧电容电压变化的原因[J]. 电力系统自动化, 2001, 25(7): 32-35 |
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| 作者姓名： | 许其品 陈贤明 许和平 |
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| 作者单位： | 国家电力公司电力自动化研究院, |
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| 摘 要： | 利用作者早先提出的一种开关函数正负半波分解的方法，分析了三级电压源逆变器直流倒电容电压在电网对称及不对称条件下，电容电压的变化与开关函数间的关系，并得出引起直流侧电容电压变化的根本原因是与开关函数基 同相位的偶次余弦电流分量。
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| 关 键 词： | 开关函数 三级电压源逆变器 对称控制 直流侧电容电压 电力系统稳定性 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
THE REASON CAUSING THE VARIATIONS OF CAPACITORS' VOLTAGE OF THREE-LEVEL VOLTAGE SOURCE INVERTER AT DC SIDE |
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| Xu Qipin,Chen Xianming,Xu Heping. THE REASON CAUSING THE VARIATIONS OF CAPACITORS' VOLTAGE OF THREE-LEVEL VOLTAGE SOURCE INVERTER AT DC SIDE[J]. Automation of Electric Power Systems, 2001, 25(7): 32-35 |
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| Authors: | Xu Qipin Chen Xianming Xu Heping |
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| Abstract: | The relation between the voltage of capacitors and the switching function of three- level voltage source inverter at DC side in sym metry and asym metry power system is identified by using authors'former method to decompose the switching function into positive and negative half waveform s.It is concluded that the even- order cosine current com ponents of the sam e phase with the fundam ental component of the switching function are the premier reason causing the variations of capacitors' voltage of three- level voltage source inverter at DC side. |
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| Keywords: | switching function three- level voltage source inverter symm etry control asym metry control |
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