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变频交流发电系统在航空电源上越来越受到重视。发电机转速的变化带来了发电机参数的变化,对发电机调节技术带来了挑战,现有的适合恒频发电系统的调压技术不能满足变频发电系统的需要。本文将发电机电压、励磁电流、发电机频率和负载电流四个量作为反馈量,构成多环反馈,用于新型的混合励磁无刷交流发电系统中,分析了混合励磁无刷交流发电机的特性。对发电系统进行了变频调压实验,实验结果表明,设计的发电机调压器减小了动态调节时间,适合于变频交流发电系统。
AC frequency conversion system in the aviation power more and more attention. The change of generator speed brings about the change of generator parameters, which poses a challenge to the generator regulation technology. The existing voltage regulation technology suitable for constant frequency power generation system can not meet the requirement of variable frequency power generation system. In this paper, four quantities of generator voltage, excitation current, generator frequency and load current are used as feedback to form multi-loop feedback, which is used in a new hybrid excitation brushless AC power system. The effects of hybrid excitation brushless alternator characteristic. The frequency conversion voltage regulation experiments were carried out on the power generation system. The experimental results show that the designed generator voltage regulator reduces the dynamic adjustment time and is suitable for the AC frequency conversion system.