At present, the application scope of distributed power supply is gradually expanding, as the important supplement of the electric power system, the micro-grid composed of multiple distributed power suppliers is receiving increasing attention, while the operation stability of the micro-grid becomes the research focus. The PQ control strategy of micro-grid under grid-connected operation mode, and the V/f control strategy of micro-grid under grid-disconnected operation mode are analyzed; the Matlab/Simulink simulation models of PQ and V/f control strategies are given. The establishing method of each sub module is expounded, and the design method of controller parameter is given. Finally the correctness of the model and the effectiveness of the control method are verified through simulation examples.%目前，分布式电源应用范围逐渐扩大，由多个分布式电源组成的微电网作为电力系统的重要补充越来越受到重视，微电网运行的稳定性是目前的研究重点。分析了微电网在并网运行模式下的PQ控制策略，以及微电网在独立运行模式下的V/f控制策略，给出了PQ、V/f两种控制策略的Matlab/Simulink仿真模型；论述了各个子模块的建立方法，给出了控制器参数的设计方法。最后通过仿真算例，验证了模型的正确性和控制方法的有效性。
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