摘要
开放的电力市场要求有竞争性的无功辅助服务。在无功辅助服务中无功成本的分摊和定价是一个关键的问题。分析了对于实时无功定价存在的缺陷,提出了基于修正导纳法的负荷侧无功定价的方法,把负荷侧无功成本分摊分为二个部分:无功发电成本和无功输送成本。该方法通过无功相关系数建立了无功源与无功负荷的线性关系,从而进行无功成本分摊。以IEEE- 5节点系统为例对无功功率成本进行仿真计算,计算结果表明该方法是可行的和合理的。
A deregulated electricity market demands competitive Reactive Power Ancillary Service（RPAS）. In the RPAS, it is key to the allocation of reactive power cost and reactive pricing. Regarding the shortcoming of spot reactive pricing, a new reactive pricing method is proposed in loads side based on modified Y-BUS Matrix. The reactive cost is divided into two parts： the reactive generation cost and the reactive transmission cost. This method finds the linear relationship between reactive sources and reactive loads by the relative coefficient of reactive power, and then implenents the allocation of reactive cost in loads side. The proposed methodology is tested on the IEEE-5 Bus system. The test results verified the validity of the proposed concept and method.
出处
《科学技术与工程》
2006年第6期692-696,共5页
Science Technology and Engineering
关键词
电力市场
无功辅助服务
无功成本分摊
无功定价
power market
reactive power ancillary service
reactive power cost
allocation
reactive pricing
