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电网技术  2015 

旋转潮流控制器稳态特性研究

DOI: 10.13335/j.1000-3673.pst.2015.07.024, PP. 1921-1926

Keywords: 旋转潮流控制器,稳态数学模型,稳态特性,潮流控制

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Abstract:

旋转潮流控制器(rotarypowerflowcontroller,RPFC)应用到电力系统潮流控制中,具有控制方法简单、输出无谐波、可靠性高、成本低的优点,但目前对其模型和控制特性的研究还并不充分。为此,分析并建立了RPFC的稳态数学模型,对RPFC的稳态特性进行了研究,推出了RPFC注入线路电压与转子角之间的关系,分析了RPFC的潮流控制特性。RPFC注入线路的电压受转子角度的控制,当接入RPFC后,线路电压的大小和相位对转子角度的灵敏范围不同,因此对线路有功和无功调节有不同的灵敏区域,RPFC可以在一定的圆形区域内实现对线路潮流的控制,其控制范围由RPFC能注入线路电压的最大变比决定。基于PSCAD/EMTDC的仿真结果,验证了对RPFC稳态模型和稳态特性分析的正确性以及RPFC对线路潮流控制的有效性和灵活性。

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