电池储能系统及相关的电力电子技术问题

Battery Energy Storage System and Relative Issues of Power Electronics Technology

电池储能系统具备调峰调频能力和灵活容量配置、不受地理和自然资源限制的特点，随着智能电网、新能源的发展日益受到重视，在电网中有着广阔的应用前景。但其电化学特性在现阶段制约了电池往大容量、易维护和实用化的方向发展。如何合理利用电力电子装置这一桥梁，沟通电化学和电网两个截然不同的体系，一方面高效地适应不同电池类型，不同串并联方式，保证电池正常使用寿命，另一方面为电网提供如削峰填谷、无功支撑、新能源配合等功能，是值得探讨的问题。

Battery energy storage system （BESS） can be used for peak load and frequency regulating. The scalable conngurauon ano possibility of isolation between power sources and demand gives BESS a great opportunity in power system application. At this stage, however, the electrochemistry charactoristics limit the battery volumn and make it less practical in terms of operation and maintainence. So it is worthy to explore how to use the power electronic device as a bridge for two distinct systems （electrochemistry and power grid）, supporting the integration of different battery types, and the functions of load shifting, reactive power regulation, and renewable energy matching.