基于微电网的高铁AT所配电设备新型供电方法

近年来,高速铁路的迅猛发展使其成为一个重要的电力用户,然而,高铁AT所配电设备的供电存在缺陷和问题。针对高铁AT所配电设备供电的问题,提出利用微电网技术向高铁AT所配电设备供电的构想。根据高铁AT所特性与微电网的特点,分析将两者结合的可行性、必要性及重要性。同时,提出微电网向高铁AT所配电设备供电的方案,给出微电网的结构、控制策略。运用Matlab/Simulink软件仿真基于对等控制的高铁AT所内微电网孤岛负荷变换和运行方式切换的状况,检验供电方案的可行性及控制方法的正确性。最后通过比较微电网配电与传统配电方案,分析微电网供电的众多优势,得出在实际应用中具有重要意义的结论。

A New Power Supply Method for Power Distribution Equipment of High-speed Rail AT Station Based on Microgrid

In recent years,the rapid development of high-speed railway has made itself an important power user. However,the power supply of high-speed AT station distribution equipment suffers some defects and problems. Aiming at solving the problem of power supply of distribution equipment for high-speed rail AT station, this paper puts forward the concept of providing power to distribution equipment of high speed rail AT station by means of micro grid technology. According to the characteristics of high-speed rail AT station and microgrid,the feasibility,necessity and importance of the combination of the two are analyzed. At the same time,the scheme of microgrid supplying power to the distribution equipment of high-speed rail AT station is put forward,and the structure and control strategy of microgrid are presented. Matlab/Simulink software is used to simulate the load transformation and operation mode switching of high-speed rail AT station microgrid based on peer to peer control. The correctness of the control strategy and the feasibility of the power supply scheme are verified. Finally,by comparing micro-grid power distribution with the traditional distribution,the advantages of micro-grid power supply are illustrated and the practical application of microgrid power supply is of great significance.