基于单端正激变换的地线取电系统电源电路仿真设计
|
摘要
为解决输配电系统检测设备供电难题,设计了能够从输电线路架空地线取电系统电源电路。根据输电线路地线感应电压不稳定的特点,采用不可控整流桥和单端正激变换电路,结合闭环控制技术,设计并搭建了电路模型。通过分析在不同输入电压情况下电路的输出特性,验证了电路可行性,该电源电路实现了将9 V～100 V可变交流输入转换为12 V稳定直流输出,并且通过拟合不同负载情况下电路输出功率特性曲线,分析得出电源电路输出功率稳定。
In order to solve the power supply problem of Transmission and transformation system testing equipment,a power supply circuit of getting electricity from overhead grounding line system for transmission lines is designed. According to the characteristics of the induced voltage instability of transmission lines,combined closed loop control technology,uncontrollable rectifier bridge and single ended forward conversion circuit are adopted. The power circuit model is designed and built. The feasibility of the circuit is verified by analyzing the output characteristics of the circuits under different input voltages. The power circuit realizes the conversion of 9 V～100 V variable AC input to 12 V stable DC output. The output power of the circuit is stable,by fitting the output characteristic curve of the circuit under different load conditions.
In order to solve the power supply problem of Transmission and transformation system testing equipment,a power supply circuit of getting electricity from overhead grounding line system for transmission lines is designed. According to the characteristics of the induced voltage instability of transmission lines,combined closed loop control technology,uncontrollable rectifier bridge and single ended forward conversion circuit are adopted. The power circuit model is designed and built. The feasibility of the circuit is verified by analyzing the output characteristics of the circuits under different input voltages. The power circuit realizes the conversion of 9 V～100 V variable AC input to 12 V stable DC output. The output power of the circuit is stable,by fitting the output characteristic curve of the circuit under different load conditions.
引文
[1] 秦欢.高压测量系统感应取能电源设计[J].现代电力,2009,26(5):32-36.
[2] 李先志,杜林,陈伟根,等.输电线路状态监测系统取能电源的设计新原理[J].电力系统自动化,2008,32(1):76-80.
[3] 杨金显,王鹏飞,罗宇锋,等.基于MIMU的输电线路运动检测技术[J].传感技术学报,2017,30(5):795-800.
[4] 林飞,杜欣.电力电子应用技术的MATLAB仿真[M].北京:中国电力出版社,2016.
[5] 贺益康,潘再平.电力电子技术[M].北京:科学出版社,2010.
[6] Iannello Chris,Luo Shiguo,Batarseh Issa.Small-Signal and Transient Analysis of a Full-Bridge Zero-Current-Switched PWM Converter Using an Average Model[J].IEEE Trans on Power Electronics,2003,18(3):793-801.
[7] 王正林,王胜开,陈国顺,等.MATLAB/Simulink与控制系统仿真[M].北京:电子工业出版社.
[8] Yao Kaiwei,Ren Yuancheng,Lee Fred C.Critical Band-Width for the Load Transient Response of Voltage Regulator Modules[J].IEEE Trans on Power Electronics,2004,19(6):1554-1461.
[2] 李先志,杜林,陈伟根,等.输电线路状态监测系统取能电源的设计新原理[J].电力系统自动化,2008,32(1):76-80.
[3] 杨金显,王鹏飞,罗宇锋,等.基于MIMU的输电线路运动检测技术[J].传感技术学报,2017,30(5):795-800.
[4] 林飞,杜欣.电力电子应用技术的MATLAB仿真[M].北京:中国电力出版社,2016.
[5] 贺益康,潘再平.电力电子技术[M].北京:科学出版社,2010.
[6] Iannello Chris,Luo Shiguo,Batarseh Issa.Small-Signal and Transient Analysis of a Full-Bridge Zero-Current-Switched PWM Converter Using an Average Model[J].IEEE Trans on Power Electronics,2003,18(3):793-801.
[7] 王正林,王胜开,陈国顺,等.MATLAB/Simulink与控制系统仿真[M].北京:电子工业出版社.
[8] Yao Kaiwei,Ren Yuancheng,Lee Fred C.Critical Band-Width for the Load Transient Response of Voltage Regulator Modules[J].IEEE Trans on Power Electronics,2004,19(6):1554-1461.