作者:
刘聪，刘文颖，王维洲，朱丹丹，文晶
关键词:
电力系统；高载能负荷；风/光电消纳；国际节能效果测量和认证规程；定量预评估；威布尔分布
摘要:
Implemented the coordinated control of power source with power source and that of power grid with power source, the problem of accommodating large-scale wind power/photovoltaic (PV) power that is concentratedly grid-connected at Jiuquan prefecture in Gansu province still exists. There is a new approach to solve this problem, which regards the high-energy loads possessing high capacity and better regulation characteristics as the adequacy resources participating the coordinated control of accommodation of grid-connected wind power and PV power. Without the data available for reference from the system being put into operation, a quantitative pre-evaluation method for earlier stage of engineering application is proposed. On the basis of analyzing the regulation characteristic of high-energy load, and according to the international performance measurement and verification protocol (IPMVP) and adequately considering the constraint of tie line power flow and the constraint of upward capacity regulation compatible with the high-energy load as well as the participating extent of the high-energy load, a three stage statistical model for high-energy load participating the accommodation of grid-connected wind power and PV power and a quantitative calculation method are established to obtain the accommodated electricity quantity, which the high-energy load participates in, and the least response time required by the high-energy load to be adjusted. The proposed method is applied in the calculation of Gansu power grid and the feasibility of the proposed methodis validated by calculation results.
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