摘要:通过对凸极同步发电机在abc轴系和dq0轴系下数学模型进行对比与分析,解决了同步发电机在进行数字仿真时不同轴系下数学模型的选择问题。以航空同步发电机为例,完成了分别采用abc轴系和dq0轴系下数学模型进行的空载启动、带50%额定负载启动、突加突卸负载和带整流器负载等情况下的仿真。主要分析了发电机输出电压中谐波成分,总结出同步发电机在abc轴系和dq0轴系下数学模型进行仿真时各自的特点。在进行凸极同步电机的数字仿真时,可根据对仿真结果精度的要求和具体带负载情况,灵活选择不同轴线下的数学模型。
关键词:同步发电机;abc轴系;dq0轴系;数字仿真;谐波电压 Abstract: By comparing and analyzing the model of synchronous generator between abc axis system and dq0 axis system,the article gave a solution that how to choose the appropriate model in the simulation. The article used a aircraft generator as an example and finished some simulations, such as taking noload, taking 50% rated load, sudden taking and discharging load and taking rectifier load. Through analysis of harmonic wave of output voltage, some characteristics between the model of abc axis system and dq0 axis system were summarized. According to this article, the appropriate model can be selected according to the requirement of accuracy and conditions of taking load.
Key words: synchronous generator; abc axis system;dq0 axis system;simulation;harmonic wave of voltage
|