| 模态叠加对次同步谐振暂态扭矩放大的影响 |
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| 引用本文： | 陈武晖,毕天姝,杨奇逊. 模态叠加对次同步谐振暂态扭矩放大的影响[J]. 中国电机工程学报, 2010, 0(28) |
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| 作者姓名： | 陈武晖 毕天姝 杨奇逊 |
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| 作者单位： | 电力系统保护与动态安全监控教育部重点实验室(华北电力大学); |
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| 基金项目： | 新世纪优秀人才支持计划项目(NCET-05-0216); 长江学者和创新团队发展计划项目(IRT0515); 高等学校学科创新引智计划项目(B08013)~~ |
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| 摘 要： | 应用扭矩2阶解分析暂态扭矩中模态叠加互作用机制。对2个模态的频率谐振和拍频2种模态叠加互作用进行数学推导。并重点分析反相位、同相位和正交相位等初始相位关系对这2种模态叠加互作用的影响。分析结果表明,频率谐振模态叠加互作用最大幅值受初始相位关系的影响,而拍频模态叠加互作用的最大幅值接近于叠加模态初始幅值之和,与初始相位无关。这些分析把暂态扭矩放大与系统模态及其互作用联系起来,有助于准确理解暂态扭矩放大机制,进而寻找缓解暂态扭矩放大的措施。选用IEEE第1标准模型进行仿真分析,验证分析的正确性。
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| 关 键 词： | 暂态扭矩放大 模态叠加互作用 次同步谐振 电力系统 |
Effect of Modal Superimposition on Transient Torque Amplification of Subsynchronous Resonance |
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| CHEN Wuhui,BI Tianshu,YANG Qixun ,Ministry of Education,Changping District,Beijing ,China). Effect of Modal Superimposition on Transient Torque Amplification of Subsynchronous Resonance[J]. Proceedings of the CSEE, 2010, 0(28) |
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| Authors: | CHEN Wuhui BI Tianshu YANG Qixun Ministry of Education Changping District Beijing China) |
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| Affiliation: | CHEN Wuhui,BI Tianshu,YANG Qixun (Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control (North China Electric Power University),Ministry of Education,Changping District,Beijing 102206,China) |
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| Abstract: | The mechanism of superimposed modal interactions was developed by using the second-order solutions of torques. The frequency-resonant and frequency-beating superimposed modal interactions of two modes were mathematically derived. The effect of three kinds of initial phase relationships comprising in-phase, opposed-phase and quadrature-phase on the two types of superimposed modal interactions, was investigated. The results show that the maximum peak of frequency-resonant superimposed modal interactions depen... |
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| Keywords: | transient torques amplification superimposed modal interaction subsynchronous resonance power system |
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