| 交直流系统暂态仿真中换流器的换相过程分析 |
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| 引用本文： | 吴红斌,丁明,刘波. 交直流系统暂态仿真中换流器的换相过程分析[J]. 电网技术, 2004, 28(17): 11-14 |
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| 作者姓名： | 吴红斌 丁明 刘波 |
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| 作者单位： | 合肥工业大学电气与自动化工程学院,安徽省,合肥市,23000;合肥工业大学电气与自动化工程学院,安徽省,合肥市,23000;合肥工业大学电气与自动化工程学院,安徽省,合肥市,23000 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 交流系统故障引发换流器的换相失败是直流系统中常见的故障,在暂态稳定仿真中如何模拟这一过程始终是个难点.文章详细分析了直流系统中整流器、逆变器在换相电压不对称条件F的具体差异,通过对换流器的换相角和实际熄弧角的计算,构造了判别换流器换相失败和3-4运行的详细流程,并结合修改后的EPRI-36节点系统进行了算例分析,证明了文中所提方法是可行的、合理的.
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| 关 键 词： | 电力系统 交直流混合系统 暂态仿真 换流器 换相过程 |
| 文章编号： | 1000-3673(2004)17-0011-04 |
| 修稿时间： | 2004-03-11 |
ANALYSIS ON COMMUTATION PROCESS OF CONVERTERS IN TRANSIENT SIMULATION OF HYBRID AC/DC POWER SYSTEMS |
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| WU Hong-bin,DING Ming,LIU Bo. ANALYSIS ON COMMUTATION PROCESS OF CONVERTERS IN TRANSIENT SIMULATION OF HYBRID AC/DC POWER SYSTEMS[J]. Power System Technology, 2004, 28(17): 11-14 |
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| Authors: | WU Hong-bin DING Ming LIU Bo |
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| Abstract: | The commutation failure of converters is a kind of common fault of DC system when fault of AC system occurs. It is still difficult to simulate this process in transient stability simulation of hybrid AC/DC power. Here, the concrete diversity between rectifiers and inverters in DC system under unsymmetrical converting voltage is analyzed in detail. By means of calculating the converting phase angle and actual extinction angle, a detailed flowchart to distinguish the commutation failure of converters and 3-4 operation mode is constructed. The analysis of calculation example by modified EPRI 36-bus system shows that the presented method is feasible and reasonable. |
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| Keywords: | Power system Hybrid AC/DC power systems Transient simulation Converter Commutation process |
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