| 不对称运行条件下VSC-HVDC动态相量建模 |
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| 引用本文： | 潘武略,徐政,张静.不对称运行条件下VSC-HVDC动态相量建模[J].高电压技术,2009,35(7):1705-1710. |
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| 作者姓名： | 潘武略 徐政 张静 |
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| 作者单位： | 浙江大学电机系,杭州,310027 |
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| 基金项目： | 国家电网公司科技项目(SGKJ[2007]249)~~ |
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| 摘 要： | 为了提高仿真精度和减少计算量,采用动态相量法,针对不对称运行条件下的基于电压源型换流器的直流输电系统(VSC-HVDC)进行建模。动态相量法基于时变傅立叶级数,所建模型为近似时不变的大信号模型。该模型比准稳态模型精确,同时与详细电磁暂态模型相比,能够显著提高计算效率。使用动态相量模型对不对称条件下的VSC-HVDC响应特性进行了仿真,并与电磁暂态程序的计算结果对比表明,此模型是精确有效的。
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| 关 键 词： | 动态相量 电压源型换流器 高压直流输电 不对称条件 建模 时变傅立叶级数 效率 |
Dynamic Phasors Modeling of the VSC-HVDC Under Unbalanced Conditions |
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| PAN Wu-lue
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XU Zheng
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ZHANG Jing.Dynamic Phasors Modeling of the VSC-HVDC Under Unbalanced Conditions[J].High Voltage Engineering,2009,35(7):1705-1710. |
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| Authors: | PAN Wu-lue XU Zheng ZHANG Jing |
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| Affiliation: | Department of Electrical Engineering;Zhejiang University;Hangzhou 310027;China |
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| Abstract: | We established a dynamic model for VSC-HVDC systems on the basis of the dynamic phasors approach.The model was derived in a synchronous dq reference frame,and could be used to simulate the behavior of VSC-HVDC systems under unbalanced conditions.The dynamic phasors were based on the time-varying Fourier coefficient series and the established model was an approximate time-invariant large-signal model.The dynamic phasors model was more accurate than quasi-steady state model,and it was more efficient than deta... |
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| Keywords: | dynamic phasor voltage source converter HVDC unbalanced condition model time-varying Fourier coefficient series efficient |
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