Study of control strategy for hybrid energy storage in wind- photovoltaic hybrid streetlight system
Study of control strategy for hybrid energy storage in wind- photovoltaic hybrid streetlight system
复制标题
风光互补路灯系统混合储能控制策略研究
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Jian Liu
中科院分区：
文献类型：
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作者：
Guosheng Tian;Xinping Ding;Jian Liu
提出了一种采用超级电容和电池的混合储能装置作为风光互补路灯系统中的储能单元。以超级电容为主、电池为辅的混合储能系统为风光互补路灯系统提供充足、稳定、可靠的能源保障。通过该技术，可以实现更轻、更小的储能系统，从而提高风光互补路灯系统的性能。超级电容器以其功率密度高、充电速度快、使用寿命长以及体积小、重量轻和极高的循环能力等优点在储能系统中受到越来越多的关注。这样电池只能保证平均功率，超级电容可以保证功率变化。当功率发生较大变化时，超级电容起到储能缓冲作用。超级电容的存储能力和并联控制器的变流控制功能，可以减少微小电池的充放电次数，减少放电深度，延长电池的使用寿命，从根本上解决了风光互补路灯系统的问题。从而提高风光互补路灯中HESS的电池寿命、重量和体积。仿真结果验证了所提出控制策略的有效性。
A hybrid energy storage with super capacitor and batteries for energy storage unit in wind-pv hybrid streetlight system has been presented. Hybrid energy storage system with super capacitor is given priority to, supplemented by the batter provide adequate, stable and reliable energy guarantee for wind-pv hybrid streetlight system. With this technique a lighter and smaller energy storage system can be achieved which enhances the performance of wind-pv hybrid streetlight system. Super capacitor has drawn more and more attention on energy storage systems because of its advantages of high power density, high charging speed, long service life and small size, light weight and extremely high cycling capability. In this way the batteries can ensure only the average power and the super capacitors can ensure the power variations. When power is greatly change, super capacitors have energy storage buffer action. Storing capacity of super capacitor and variable current control function of parallel controller can reduce times of tiny battery charging and discharging, reduce the discharge depth, prolong the service life of the battery, which basiciy solved the problem of wind-pv hybrid streetlight system. The lifetime of the batteries, weight and volume of the HESS in wind-pv hybrid streetlight can thus been improved. The simulation results verified the validity of proposed control strategy.