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استراتژی کنترل هماهنگ توان راکتیو برای انتقال نیروی باد در مقیاس بزرگ توسط پیوندهای LCC-HVDC

استراتژی کنترل هماهنگ توان راکتیو برای انتقال نیروی باد در مقیاس بزرگ توسط پیوندهای LCC-HVDC

عنوان انگلیسی: Coordinated control strategy of reactive power for large-scale wind power transmission by LCC-HVDC links
سال نشر: ۲۰۱۷
نویسنده: Wang Zhibing,Xu Yang,Wang Xitian
تعداد صفحه فارسی: ۱ – تعداد صفحه انگلیسی: ۵
دانشگاه:
نشریه: Process Safety and Environmental Protection
کیفیت ترجمه: ترجمه پلاس

چکیده

Abstract

The intermittence and fluctuation of outputs of large-scale wind farms lead to significant problems in power transmission system by line-commuted converter high-voltage direct current (LCC-HVDC) links. Traditional reactive power compensation devices such as AC filters are not capable of adjusting reactive power balance continuously. This paper presents a coordinated reactive power control strategy to realise continuous adjustment. A synchronous condenser (SC) is applied in the DC converter station to cooperate with AC filters. The capacity of the SC is determined by the minimum capacity and dead zone of the AC filter unit, and cost saving is also taken into account. While power outputs of wind farms fluctuate, the setting value of DC power gets changed. The SC responses rapidly to reduce the reactive power exchange. When the reactive power demand is beyond the capacity of the SC, one AC filter unit operates and the SC readjusts to maintain the reactive power balance. The proposed contr
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