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基于数字信号处理器控制的新型全桥移相式零电压零电流开关PWM DC-DC变换器 被引量：34

NOVEL FULL-BRIDGE PHASE-SHIFT ZVZCS PWM DC-DC CONVERTER BASED ON DSP CONTROL
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摘要 针对传统的全桥移相式零电压零电流开关(ZVZCS)PWM DC-DC变换器在实现滞后桥臂开关管零电流开关(ZCS)的过程中,存在着辅助谐振电路附加损耗较大、软开关实现方式复杂以及功率开关管电压和电流应力高等缺点,提出了一种通过辅助无源钳位网络来实现软开关的新型全桥ZVZCS PWM DC-DC变换器。分析了变换器的软开关实现原理,并采用TMS320F240 DSP作为控制芯片,设计了变换器数字控制系统。通过一台0.8kW,60kHz的样机验证了这种基于数字控制的软开关变换器相关理论的正确性。 Conventional full-bridge zero-voltage and zero-current-switching （ZVZCS） PWM DC-DC converters exist some disadvantages in the operating process of ZCS for lagging leg. These problems auxiliary circuit, complicated and high voltage and current include additional losses in realization for soft-switching, stresses of switches. A novel full-bridge ZVZCS PWM DC-DC converter with auxiliary passive clamping net was proposed to resolve these issues. The soft-switching operating principle of the converter was analyzed, and digital control system was designed using TMS320F240 DSP chip. A 0.8kW, 60kHz prototype has verified the principle and characteristics of the proposed soft-switching converter based on digital control.
作者 孙铁成 王高林 汤平华 张学广
机构地区 哈尔滨工业大学电气工程系
出处 《中国电机工程学报》 EI CSCD 北大核心 2005年第18期46-50,共5页 Proceedings of the CSEE
关键词 电力电子 DC-DC变换器 零电压零电流开关 无源钳位 数字控制 数字信号处理器 Power electronics DC-DC converter Zero-voltage and zero-current switching（ZVZCS） Passiveclamping Digital control Digital signal processing
分类号 TM46 [电气工程—电器]
  • 相关文献

参考文献15

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二级参考文献21

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共引文献173

同被引文献295

引证文献34

二级引证文献182

中国电机工程学报
2005年 第18期

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