| 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 |
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| 引用本文： | 孙铁成,王高林,汤平华,张学广. 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[J]. 中国电机工程学报, 2005, 25(18): 46-50 |
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| 作者姓名： | 孙铁成 王高林 汤平华 张学广 |
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| 作者单位： | 哈尔滨工业大学电气工程系,黑龙江省,哈尔滨市,150001 |
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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.
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| 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 |
| 文章编号： | 0258-8013（2005）18-0046-05 |
| 收稿时间： | 2005-03-02 |
| 修稿时间： | 2005-03-02 |
NOVEL FULL-BRIDGE PHASE-SHIFT ZVZCS PWM DC-DC CONVERTER BASED ON DSP CONTROL |
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| SUN Tie-cheng,WANG Gao-lin,TANG Ping-hua,ZHANG Xue-guang. NOVEL FULL-BRIDGE PHASE-SHIFT ZVZCS PWM DC-DC CONVERTER BASED ON DSP CONTROL[J]. Proceedings of the CSEE, 2005, 25(18): 46-50 |
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| Authors: | SUN Tie-cheng WANG Gao-lin TANG Ping-hua ZHANG Xue-guang |
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| Abstract: | 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 include additional losses in auxiliary circuit,complicated realization for soft-switching,and high voltage and current 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. |
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| Keywords: | Power electronics DC-DC converter Zero-voltage and zero-current switching(ZVZCS) Passive clamping Digital control Digital signal processing |
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