微源并网逆变器下垂控制策略的改进研究2，用于微电网孤岛运行的逆变电源控制方法1，微网孤岛模式下负荷分配的改进控制策略1-Improvement of micro-source grid-connected inverter droop control strategy 2, power inverter control method for running a micro-grid island, under the micro-grid island mode control strategy