| 并联逆变电源的扫频启动电路 |
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| 引用本文： | 周跃庆,王鸿隽.并联逆变电源的扫频启动电路[J].工业炉,2007,29(1):34-36. |
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| 作者姓名： | 周跃庆 王鸿隽 |
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| 作者单位： | 天津大学,电气与自动化工程学院,天津,300072 |
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| 摘 要： | 针对并联逆变电源设计的难点--启动问题,提出了一种扫频式它激到自激转换的启动电路,电路由鉴相部分和启动部分构成.文中详细分析了启动过程的相关问题,给出了仿真结果,并研制了一台50 kW样机.实验结果证明,该启动电路从18 kHz到38 kHz,均能实现扫频的成功启动,扫频范围高达20 kHz,扫频范围宽,启动成功率可达95%以上.
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| 关 键 词： | 并联逆变 扫频式启动 感应加热 |
| 文章编号： | 1001-6988(2007)01-0034-03 |
| 修稿时间： | 2006年9月4日 |
Swept-Frequency Start Circuit for Parallel Inverters |
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| ZHOU Yue-qing,WANG Hong-jun.Swept-Frequency Start Circuit for Parallel Inverters[J].Industrial Furnace,2007,29(1):34-36. |
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| Authors: | ZHOU Yue-qing WANG Hong-jun |
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| Abstract: | In order to overcome a difficulty in starting parallel inverter power supplies,a swept-frequency start circuit with separate and self-excitation is put forward.Questions related to the starting process are analyzed in detail,and simulation results are presented.A 50 kW prototype power supply was developed by using a swept-frequency start circuit for the parallel inverter.Experimental results show that over a frequency range of 18 kHz to 38 kHz,the inverter can start successfully,and this new strategy has a wide swept-frequency range(20 kHz) and a high successful-start ratio(>95%). |
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| Keywords: | parallel inverter sweep-frequency starting induction heating |
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