摘要
针对传统静止同步补偿器(Static Synchronous Compensator,STATCOM)只能补偿无功功率的不足,提出一种新型混合储能静止同步补偿器(STATCOM/HESS),通过在直流侧增加混合储能装置,可快速补偿系统所需要的有功功率和无功功率。相比于有关学者之前提出的蓄电池储能静止同步补偿器(STATCOM/BESS),采用STATCOM/HESS可充分利用超级电容功率密度高及蓄电池能量密度高的特点,储能系统的动态响应特性和运行寿命得到极大改善。对STATCOM/HESS的拓扑结构进行了研究,并对其应用于风电场的协调控制策略进行了分析,在PSCAD/EMTDC中建立了STATCOM/HESS的仿真模型。结果表明,STATCOM/HESS在稳态情况下能够有效平抑风电场的有功功率波动,并能够根据需要发出感性和容性无功功率,优化风电场的并网运行。
Aiming at the shortage of traditional STATCOM（Static synchronous compensator） that has no option but to compensate reactive power, a new style of hybrid energy storage STATCOM （STATCOM/HESS） was proposed. By adding the hybrid energy storage device at DC side it is possible to compensate quickly the active power and reactive power required by the compensation system. Compared to the accumulator battery energy storage STATCOM （STATCOM/BESS） proposed by relevant scholars before, STATC（）M/HESS can make maximum use of the features i. e. high power density of super capacitor and high energy density of the batteries with great improvement of dynamic response and service life of the energy storage system. By exploring STATCOM/HESS topology and analyzing its coordinated control strategy applied to wind power firlds, a simulation model of STATCOM/HESS was established in PSCAD/EMTDC. The results show that STATCOM/ HESS in steady state can effectively stabilize the active power fluctuations in wind power fields, and can send out the inductive and capacitive reactive power as required to optimize the on-line operation of wind power fields.
出处
《上海电气技术》
2016年第3期4-8,共5页
Journal of Shanghai Electric Technology
关键词
混合储能
静止同步补偿器
风电场
波动功率平抑
控制策略
Hybrid Energy Storage
STATCOM
Wind Power Fields
Stabilization of PowerFluctuation
Control Strategy
