混合储能与光伏协同的直流配网暂态稳定控制  

Transient Stability Control of DC Distribution Grid in Collaboration With Hybrid Energy Storage and Photovoltaic

作　　者：沈凯 杨翾 秦奋 陈喆 SHEN Kai;YANG Xuan;QIN Fen;CHEN Zhe(Hangzhou Power Supply Company,State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310016,China;不详)

机构地区：[1]国网浙江省电力有限公司杭州市余杭区供电公司,浙江杭州310016 [2]国网浙江省电力有限公司杭州供电公司,浙江杭州310016

出　　处：《电力电子技术》2024年第12期91-94,98,共5页Power Electronics

基　　金：国网浙江省电力公司科技项目(3212089423)。

摘　　要：直流配网中各分布式能源间的协调运行是确保系统大扰动暂态稳定运行的关键。为此,针对含超级电容和蓄电池混合储能直流配网,提出一种暂态稳定协调控制策略,通过综合光伏、蓄电池荷电状态、负荷功率等相关信息,在暂态扰动发生时,快速实现各接口电力电子变换器在各工作模态间的平滑切换;实现直流母线短路时的系统故障穿越和暂态稳定运行。搭建了包含混合储能、光伏及电网在内的RTDS硬件在环实验平台,通过硬件在环实验结果验证了所提协调策略的可行性。The coordinated operation of distributed energy sources in DC distribution grid is the key to ensure the system stable operation of large disturbance transient state.Therefore,a coordinated control strategy of transient stability is proposed for DC distribution grid with hybrid energy storage including supercapacitor and battery.According to the local unit information such as photovoltaic,battery charging state,load power and so on,the working modes of each interface power electric converter can be quickly determined and the smooth switching between modes can be realized when the transient disturbance occurs.When DC bus short-circuit fault occurs,system fault crossing and transient stable operation can be realized.A RTDS hardware-in-the-loop experimental platform including hybrid energy storage,photovoltaic and power grid is built.The feasibility of the proposed coordination strategy is verified by hardware-in-the-loop experimental results.

关 键 词：配网 混合储能 暂态稳定控制 

分 类 号：TM76[电气工程—电力系统及自动化]