超导—蓄电池混合储能装置接于配电网对电压稳定性的影响

建立了超导储能(SMES)-蓄电池(BESS)混合储能在电压分析中的简化数学模型。充分利用蓄电池的能量密度大、造价低和超导储能的功率密度大,循环周期长的优点互补供电,大大提高了系统改善电压的性能。混合储能装置经双桥系统与配电网交流系统相接,能大大提高接入的容量。具有快速响应的超导储能装置使得混合储能装置具有快速接入的特点,采用触发角控制原则触动系统输出功率来改善电压稳定。在Matlab平台上,对给出的算例进行仿真计算。仿真结果表明,混合式储能装置接于配电网能有效的改善系统的电压稳定性。

Influence of Superconducting Magnetic-battery Energy Storage Hybrid Energy Storage Connected to Distribution on Voltage Stability

A simplified mathematical model of hybrid energy storage（HES） that includes superconducting magnetic energy storage（SMES） and battery energy storage（BES） is proposed. Making full use of both the BES that has high energy density, low cost and SMES that has high power density, can cycle many times we can improve the voltage stability of network greatly. HES access to the distribution network AC system through dual bridge system, the framework can greatly improve the access capacity. SMES with fast response speed makes the HES can fast access to the network when finds fluctuation, applying trigger angle control principle to trigger system output power to improve voltage stability. Making simulation of the given example on Matlab platform. The simulation results shows that HES devices access to distribution can effectively improve the network voltage stability.