微电网储能系统模式切换侦测装置;Detecting Device for Switching Mode of Micro-Grid Energy Storage System

摘要

一种微电网储能系统模式切换侦测装置，其包含有一微电网；一与微电网连接之市电；以及一连接微电网与市电之市电状态侦测机构，可利用频率、振幅变化及弦波比较法判断市电状态，再由判断后之市电状态进行微电网供电模式之切换。藉此，可利用市电状态侦测机构快速侦测出市电之电压过高/过低、频率异常、谐波干扰等异常问题，并于市电发生异常时控制微电网至所需之供电模式，使微电网与市电脱离而不受到影响，而达到可立即变换控制策略以稳定微电网电压之功效。;A device is provided to detect a microgrid and a main supply. The detection result is used for switching a mode of an energy storage system of the microgrid. If the voltage of the main supply is too high or too low;if the frequency is abnormal;if harmonic wave is interfered;or if the main supply is not operated well, the microgrid can be changed to be operated in a required supply mode to prevent itself from being affected. Thus, control strategy can be instantly changed to stabilize voltage of the micro grid.