CAJ | 학술논문

储能技术在提高间歇式电源可控性和可靠性，提升其接入友好性方面具有广阔的应用前景。然而分散独立控制风储系统的无序充放电可能带来更多的不确定性，不利于电网的安全经济运行。针对集群风储系统，构建了本地风储系统、集群控制中心以及电网调度中心广域协调互动的基本框架。提出基于超短期风功率预测的本地风储系统优化控制策略以及集群风储系统广域协调控制方法。通过仿真分析可知，提出的控制策略可充分利用集群风电出力的时空差异性，有效提高储能的利用效率，增强集群风电出力的整体可控性。
저능기술재제고간헐식전원가공성화가고성，제승기접입우호성방면구유엄활적응용전경。연이분산독립공제풍저계통적무서충방전가능대래경다적불학정성，불리우전망적안전경제운행。침대집군풍저계통，구건료본지풍저계통、집군공제중심이급전망조도중심엄역협조호동적기본광가。제출기우초단기풍공솔예측적본지풍저계통우화공제책략이급집군풍저계통엄역협조공제방법。통과방진분석가지，제출적공제책략가충분이용집군풍전출력적시공차이성，유효제고저능적이용효솔，증강집군풍전출력적정체가공성。
ABSTRACT:Energy storage technology has great potential in improving the integration friendliness of intermittent renewable sources by enhancing their controllability and reliability. However, the disordered charge-discharge of independent and decentralized control energy storage systems (ESS) may bring more uncertain problems, which have negative impacts on economic operation of power system. A wide-area coordinated control framework, containing local wind-ESS plants, cluster control center and grid center, was designed for cluster wind-ESS integrated system. Based on ultra-short wind power prediction, the optimal control strategy for local wind-ESS and the wide-area coordinated control method for cluster wind-ESS were proposed. Simulation results indicate that the proposed control strategy can make full use of the spatial and time difference of wind-ESS integrated systems, and greatly improve the ESS efficiency and the overall controllability of the system.