在matlab/simulink下编译的恒压频比启动电机模型，有利于simulink初学者使用-A model of V/f cotrol for start motor in matlab/simulink

AC induction motors are the most common motors used in dustrial motion control systems, as well as in main powered home appliances. Simple and rugged design, low-cost, low maintenance and direct connection to an AC power source are the main advantage

可以自己改参数，很实用的VSC仿真模型，打开直接运行(Very useful VSC simulation model (V / F mode))

下垂控制就是选择与传统发电机相似的频率一次下垂特性曲线（Droop Character）作为微源的控制方式，即分别通过P/f下垂控制和Q/V下垂控制来获取稳定的频率和电压，这种控制方法对微网中的微源输出的有功功率和无功功率分别进行控制，无需机组间的通信协调，实现了微源即插即用和对等控制的目标，保证了孤岛下微电网内电力平衡和频率的统一，具有简单可靠的特点(Droop control is to choose Droop Character, which is similar to the trad