异步发电机结构简单、成本低廉且运行可靠，但输出电压极易受负载波动而变化． 文中分析了异步发电机输出功率变化引起的电压失衡现象，对传统相移控制与间接电压控制进行了改进，提出采用新型连续无功补偿装置 SVC-MEＲS 来控制异步发电机输出电压的直接电压控制方法，并通过仿真验证了该方法在扩大工作点范围与改善电流质量方面的效果． 最后，搭建风力发电系统模拟实验平台，研制了一台最大补偿容量约为7． 66kvar的 SVC-MEＲS，并完成了异步发电机组稳压实验，通过实验验证了该装置的实际效果． 与 STATCOM 相比，文中装置结构简单，且采用工频控制，开关损耗较低．

Although asynchronous generator is of simple structure，low cost and high operation reliability，its output voltage is sensitive to load fluctuation． In order to solve this problem，the voltage unbalance caused by the output power change of asynchronous generator is analyzed，the conventional phase shift control and indirect voltage con-trol schemes are improved，and a direct voltage control scheme，which adopts a novel continuous reactive power compensator SVC-MERS to stabilize the output voltage，is proposed． Then，some simulations are performed to veri-fy the effectiveness of the proposed scheme in broadening the running range and improving the current quality． Fi-nally，a simulated SVC-MERS test platform，which supplies a reactive power up to 7． 66kvar，is constructed to test the voltage stabilization performance of the asynchronous generator set． As compared with STATCOM，the proposed device is of simpler structure and less switching loss benefited from the adoption of power frequency control．