组合式航空逆变电源的设计

【作者】 邹仁炜；

【导师】 吴小华；

【作者基本信息】 西北工业大学 ， 电力电子与电力传动， 2006， 硕士

【摘要】 航空逆变电源又称为航空静止变流器,是应用功率半导体器件将飞机主直流电源变换成115V/400Hz交流电的一种变流装置。本文主要论述了航空逆变电源的历史、现状以及发展方向。现代飞机正向着全电化飞机发展,而随着飞机上用电设备的增加,高压直流270V供电方式就成为了现代飞机供电方式的发展方向。 本文在介绍单级电气隔离式软开关DC/DC变换器和单级DC/AC逆变器软开关的基础上,借鉴谐振直流环节逆变器的思想,设计了一种新颖的组合式航空静止变流器电路拓扑。该电路拓扑由移相全桥ZVSZCS PWM DC/DC变换器和DC/AC逆变器级联而成。前级采用电压单环调制方式,后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。 论文在详细分析了基于移相控制技术的全桥ZVSZCS PWM DC/DC变换器和基于三态DPM电流滞环跟踪控制技术的高频直流环节DC/AC逆变器的工作原理的基础上,对系统关键参数进行了设计和选择。并分别用仿真软件Saber和Matlab对前后两级电路进行了仿真,其仿真结果和理论分析的结果一致,从而验证了理论分析的正确性和所设计的变换系统的可行性。 根据电路拓扑原理,研制了一台1KV组合式航空逆变电源样机。该样机输入电压为270V直流,输出单相115V/400Hz交流。试验结果表明,论文所设计的电路拓扑是合理可行的。更多还原

【Abstract】 The Aeronautical Static Inverter (ASI) is the electricity converter that converts the main DC electrical power into AC 115V/400Hz by using power semiconductor components. The history, present status and development trend of ASI are presented. The all power electricity is the new trend of the modern airplane. By the increment of the electronic device on airplane, the high-voltage 270V DC power supply mode is the trend of the the modern airplane.Because the hull of the aeroplane is the electrical earth of the aeronautical electrical AC load and the main DC power supply, so there should have electrical insulation between the input and output of the ASI. On the basis of the single stage soft switching DC/DC converter and single stage DC/AC inverter, a novel circuit topology of combined ASI is designed in the light of the idea of resonant DC link Inverter. This circuit topology is constituted of a phase-shift ZVSZCS soft switching DC/DC converter and a DC/AC inverter. The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.The principle and the key circuit parameters of the PS-ZVSZCS PWM DC/DC converter and the high frequency DC link DC/AC inverter that based on three states discrete pulse modulation hysteresis current are analyzed carefully. The front stage simulation is performed by using SABER and the back stage simulation is performed by using MATLAB. The principle and the key parameters are verified by the simulation results.An experimental prototype with combined topology for 1kVA ASI by using soft-switching technique is fabricated. The experimental results show that the circuit topology of the novel ASI is reasonable.更多还原