摘要
为了提高无刷直流电动机调压系统电压转换效率、降低功率消耗,提出基于BUCK变换的斩波调压技术。在阐述BUCK模式下无刷直流电动机电路结构、数学模型基础上,对直流变换器和BUCK直流变换技术进行分析。利用MATLAB软件SIMULINK模块对BUCK直流变换器进行建模,对20k Hz工作频率下BUCK直流变换进行仿真,得到开关管门极触发脉冲、电感电压、电感电流、输出电压、开关管电流和二极管电流仿真曲线。仿真结果与理论分析波形基本一致,表明BUCK直流变换器模型的合理性。
In order to improve the brushless DC motor voltage regulation system voltage conversion efficiency and reduce power consumption, based on BUCK transformer chopper voltage regulation technology was put forward. In this paper elaborated the circuit structure and mathematical model of brushless DC motor with BUCK mode, analyzed technology of DC converter and BUCK dc transform. Take advantage of MATLAB software SIMULINK module modeling BUCK DC converter, simulation for BUCK DC transform under the 20kHz working frequency, got the switch tube gate trigger pulse, inductive voltage and inductance current, output voltage, switching tube and diode current simulation curve. The simulation results and theoretical analysis of waveform basically the same, the rationality was proved of BUCK DC converter model.
作者
张旭
ZHANG Xu(CCTEG Shenyang Research Institute, Fushun Liaoning 113122, China)
出处
《新型工业化》
2016年第7期56-60,共5页
The Journal of New Industrialization
