But the practical series resonant topology with open-loop control is not constant current charging characteristic because of the influence of the variable DC bus voltage and the distributed capacitors of the high voltage transformer and the rectifier unit. 但开关频率固定的串联谐振充电电源的恒流特性因直流母线电压的波动和高压变压器以及整流单元的分布电容的影响,其充电电流并不是恒流。
The circuit structure which can transfer one unregulated sinusoidal voltage with high THD into another regulated constant frequency sinusoidal voltage with low THD is constituted of input cycloconverter, high frequency storage transformer, output cycloconverter, input and output filter. 该电路结构由输入周波变换器、高频储能式变压器、输出周波变换器以及输入、输出滤波器构成能够将一种不稳定劣质的正弦交流电变换成另一种同频率稳定的优质正弦交流电压。
Construction and Simulation of Constant Voltage Transformer Based on MATLAB 基于MATLAB的稳压变压器建模与仿真
To build the model of constant voltage transformer and simulate by using ideal transformer, a method of magnetic circuit& circuit are presented and the model are simulated by MATLAB. The comparisons between the simulation results and the experiment ones justify the proposed model. 利用磁路与电路相结合的方法,并引入理想变压器,建立起稳压变压器(ConstantVoltageTransformer,CVT)的模型。在MATLAB下对建立的模型进行了仿真分析,同时对CVT进行了实验研究。