为提高公用电网的电能质量,解决电力电子装置和其它谐波源的谐波污染问题,有源电力滤波器(active power filter,APF)的研究不断取得新的进展。针对连接电感对有源电力滤波器的性能影响,通过分析在不同电压等级、不同PWM频率下电感的电...为提高公用电网的电能质量,解决电力电子装置和其它谐波源的谐波污染问题,有源电力滤波器(active power filter,APF)的研究不断取得新的进展。针对连接电感对有源电力滤波器的性能影响,通过分析在不同电压等级、不同PWM频率下电感的电压电流实验波形,对连接电感的铁心材料提出了优化设计方案,为提高有源电力滤波器装置的整体性能有一定的实际意义。展开更多
Magnetic-valve controllable reactor(MCR)has characteristics of DC bias and different types of magnetic flux density in the magnetic circuit and winding current distortion.These characteristics not only lead to loss ca...Magnetic-valve controllable reactor(MCR)has characteristics of DC bias and different types of magnetic flux density in the magnetic circuit and winding current distortion.These characteristics not only lead to loss calculation method of MCR different from that of power transformer,but also make it more difficult to calculate the core loss and wingding loss of MCR accurately.Our study combines core partition method with dynamic inverse J-A model to calculate the core loss of MCR.The winding loss coefficient of MCR is proposed,which takes into account the influence of harmonics and magnetic flux leakage on the winding loss of MCR.The result shows that the proposed core loss calculation method and winding loss coefficient are effective and correct for the loss calculation of MCR.展开更多
文摘为提高公用电网的电能质量,解决电力电子装置和其它谐波源的谐波污染问题,有源电力滤波器(active power filter,APF)的研究不断取得新的进展。针对连接电感对有源电力滤波器的性能影响,通过分析在不同电压等级、不同PWM频率下电感的电压电流实验波形,对连接电感的铁心材料提出了优化设计方案,为提高有源电力滤波器装置的整体性能有一定的实际意义。
基金National Natural Science Foundation of China(No.51367010)Science and Technology Program of Gansu Province(No.17JR5RA083)Program for Excellent Team of Scientific Research in Lanzhou Jiaotong University(No.201701)。
文摘Magnetic-valve controllable reactor(MCR)has characteristics of DC bias and different types of magnetic flux density in the magnetic circuit and winding current distortion.These characteristics not only lead to loss calculation method of MCR different from that of power transformer,but also make it more difficult to calculate the core loss and wingding loss of MCR accurately.Our study combines core partition method with dynamic inverse J-A model to calculate the core loss of MCR.The winding loss coefficient of MCR is proposed,which takes into account the influence of harmonics and magnetic flux leakage on the winding loss of MCR.The result shows that the proposed core loss calculation method and winding loss coefficient are effective and correct for the loss calculation of MCR.