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：针对航空变频交流发电机电压调节器开展研究，分析对比了多种电压反馈检测方法及其特点，设计了基于AD536A芯片的电压有效值检测电路，分析了电路的工作原理。这种电路的缺点是电路输出响应速度越快则输出电压纹波越大。为解决这一问题，设计了减法电路构成的滤波电路，既能进行有效滤波，又不会引起电路的延时。为解决滤波电路输出电压毛刺问题，采用了以二极管电路构成的去毛刺电路。利用Matlab软件工具对检测电路的输入／输出进行拟合，得出了有效值检测电路的传递函数，为整个发电系统的闭环仿真模型的构建打下了基础。闭环实验表明，采用了有效值检测电路，在变频、发电机电压畸变情况下的发电系统输出稳态和动态性能得到了改善-Abstract：The auto―voltage regulator for the aircraft variable frequency (VF)power system is studied．Some voltage―feedback detection methods are discussed．A RM S detection circuit based on AD536A ispresented and the principle of the circuit is analyzed．The output response speed conflicts with the out―put voltage ripple of the circuit．To solve this problem ，a filter circuit composed by the m inus circuit ispresented for filtering the voltage ripple without the response delay．A circuit for eliminating noise com―posed by the diode is presented and verified by experiments． Using a M atlab software，the input andoutput signals of the RM S detection circuit are identified．The transfer function of the circuit is obtainedand used in the simulation for the aircraft AC power system．The closed 1oop experimental results indi―cate that the system output steady and dynam ic performance with the variable frequency and the genera―tor voltage distortion is improved by using the RM S det
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