何谓电力系统电压稳定？
["\u7535\u529b\u7cfb\u7edf\u53d7\u5230\u5c0f\u7684\u6216\u5927\u7684\u6270\u52a8\u540e\uff0c\u7cfb\u7edf\u7535\u538b\u80fd\u591f\u4fdd\u6301\u6216\u6062\u590d\u5230\u5141\u8bb8\u7684\u8303\u56f4\u5185\uff0c\u4e0d\u53d1\u751f\u7535\u538b\u5d29\u6e83\u7684\u80fd\u529b"]