| 引用本文: | 周 俊,郭剑波,郭 强,胡 涛.电力系统功率连接装置接口稳定性问题及其改进措施[J].电力自动化设备,2011,31(8): |
| ZHOU Jun,GUO Jianbo,GUO Qiang,HU Tao.Interface stability of power interconnection device in electric power systems and improvement measures[J].Electric Power Automation Equipment,2011,31(8): |
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| 摘要: |
| 对于功率接口的安全性和可靠性而言，闭环稳定性是首先必须解决的问题。实际应用中，功率接口延时和接口中的直流偏移问题是影响仿真稳定性的2个重要因素。通过采取延时补偿解决延时带来的稳定性问题，针对接口中的直流偏移问题提出了一种直流控制环。现场实验证明，延时补偿方案有效消除了接口误差，直流控制环较好地抑制了功率接口中的直流分量，改进的混合接口方案具有较高的接口稳定性以及良好的动态性能。 |
| 关键词: 电力系统 数模混合仿真 接口 稳定性 功率连接 延时 补偿 直流控制环 |
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| Interface stability of power interconnection device in electric power systems and improvement measures |
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ZHOU Jun1, GUO Jianbo2, GUO Qiang2, HU Tao2
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1.Huazhong University of Science and Technology，Wuhan 430074，China;2.China Electric Power Research Institute，Beijing 100192，China
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| Abstract: |
| For the safety and reliability of power interconnection device in electric power systems，its closed-loop stability is the key issue. The power interface delay and DC offset are two important influencing factors，for which the delay compensation and DC control loop are proposed respectively in a digital-analog hybrid interface scheme. Site experiments show that the proposed scheme has higher stability and better dynamic performance. |
| Key words: electric power systems digital-analog hybrid simulation interfaces stability power interconnection time delay compensation DC control loop |
