储能电站动态交互作用及稳定性分析OA
Interactive Coupling and Stability Analysis of Energy Storage Power Station
多储能单元通过电力电子变换器接入储能电站时,产生的交互耦合作用给系统稳定运行带来挑战.建立了储能并联的系统小信号模型,基于系统的主导模态以及参与因子进行稳定性分析.根据直流母线的电压和电流变化关系,发现了全新的规律:当负荷功率恒定时,电源台数增多会产生阻抗分增效应,该效应能改善系统稳定裕度.并且,提出改进的参与因子法加以验证该效应的规律.最后,实验结果验证了上述分析的正确性.
When multiple energy storage units are connected to an energy storage station by the power electronic converter,the interaction and coupling effect bring challenges to the stable operation of the system.The small-signal model of the parallel storage system was established.The stability analysis was carried out based on the dominant modes and participating factors of the system.According to the relationship between DC bus voltage and current,a new rule was found:when the load power was constant,the increase in the number of power stations will produce an impedance multiplier effect,which can improve the system stability margin.Moreover,the improved participation factor method was proposed to verify the regularity of the effect.Finally,the experimental results verify the correctness of the above analysis.
董立志;翟冰聪;王凯丰;贾学翠
可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京 100192可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京 100192可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京 100192可再生能源并网全国重点实验室(中国电力科学研究院有限公司),北京 100192
动力与电气工程
储能电站小信号模型交互耦合稳定性分析
energy storage power stationsmall-signal modelinteractive couplingstability analysis
《电气传动》 2025 (2)
13-19,7
中国电力科学研究院长线攻关项目(多类型储能与可调节负荷的选型、运行建模及经济性能评估技术研究)(DG83-21-011)
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