摘要
在双馈发电机等值电路的基础上,建立了相应的基本方程,并求出定子电流的解析表达式。通过对定子电流的分析,求得输出电流为额定值时的励磁电压有效值解析表达式及初相位的取值范围。在此基础上,通过对定子电流有功分量及无功分量的分析,得到功率因数超前及功率因数滞后时的励磁电压初相位取值范围。为满足实际工程需要,对电机的参数作进一步简化,最终通过电机的实际参数进行仿真,验证了其理论分析的正确性。
Based on mental equation has the double feedback generator equivalent circuit, the corresponding fundabeen established, and the analytic expression of the stator current has also been extracted. Through the analysis on the stator current, the analytic expression of the valid value of the excitation voltage and the scope of the initial phase value have been extracted when the output is at the rated value. Based on this, through the analysis on the active component and the reactive component of the stator current, the scope of the initial phase value of the excitation voltage when the power factor is in advance and in lag. In order to satisfy the requirements of practical condition, the parameters of the motor have been simplified, the simulation has been carried out based on the practical parameters of the motor, the theoretical analysis have been verified to be correct.
出处
《可再生能源》
CAS
北大核心
2009年第4期14-17,共4页
Renewable Energy Resources
基金
"十一五"国家科技支撑计划项目(2006BAA01A24)
江苏省高校自然科学基础研究项目(08KJD480001)
关键词
双馈发电机
励磁电压
功率因数
double feeds back the generator
excitation voltage
power factor
power factor
