【作者】 张海涛；

【导师】 陈道炼；

【作者基本信息】 南京航空航天大学 ， 电力电子与电力传动， 2004， 硕士

【摘要】 本文论述了单相与三相静止变流器电路结构及其控制技术的现状、发展和应用前景。高频环节航空静止变流器取代低频环节航空静止变流器是发展的必然趋势。在用电量大或需要三相四线制供电的场合，需要采用三相静止变流器。 三相高频脉冲直流环节航空静止变流器由三个独立的航空静止变流器构成，具有带不平衡负载能力强、易于实现模块化等优点。每个独立的航空静止变流器采用占空比扩展有源箝位正激式高频脉冲直流环节电路拓扑，由占空比扩展有源箝位正激式高频脉冲直流环节电路与DC／AC逆变桥级联而成，前级采用电压型PWM前馈控制技术，后级采用三态DPM电流滞环控制技术。 本文论述了高频脉冲直流环节航空静止变流器的工作原理，获得了关键电路参数设计准则。 设计、研制成功了3kVA 27VDC／115V400HzAC三相高频脉冲直流环节航空静止变流器。试验结果表明，该变流器具有体积重量小、变换效率高、静态精度高、动态响应快、输入电压变化范围宽、输出波形质量高、过载与短路能力强、带不同性质负载和带三相不平衡负载的能力强等优良的综合性能。更多还原

【Abstract】 The circumstance, the development and the application perspective of the single-phase and three-phase Static Inverter on circuit construction and control technology are discussed in this paper. It is necessary for the Aviation Static Inverter with high frequency link to replace the Aviation Static Inverter with low frequency link. In the situation of using mass electric energy or three-phase four-wire system, the three-phase Static Inverter must be adopted.The three-phase Aviation Static Inverter with High Frequency Pulse DC Link is made of three independent Aviation Static Inverters and has the advantages such as strong function with unbalanced load and easy realization for module. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. Each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a DC/AC inverting bridge. The control strategy of voltage mode PWM forwardback is adopted by the former, and the control strategy of three-state discrete pulse modulation (DPM) hystersis current is adopted by the later.The operation principle of the Aviation Static Inverter with High Frequency Pulse DC Link is discussed, and the design criterions of the key circuit parameters are gained.A prototype for 3000VA 27VDC/115V400HzAC three-phase Aviation Static Inverter with High Frequency Pulse DC Link is designed and successfully developed. The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over-load and short-circuit ability, and strong function with different nature load and three-phase unbalanced load.更多还原