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多分支平行双线输电线故障定位算法的研究 总被引:3,自引:1,他引:2
本文针对多分支平行双线输电线提出了一种新的故障定位方法。应用相同的算法对全部分支进行逐条搜索,故障分支和故障点位置可以一并被确定。经仿真证明,该方法是有效的。 相似文献
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提高单片机系统可靠性的若干措施 总被引:1,自引:0,他引:1
由单片机构成的测控系统,大多应用于工业现场,存在着各种干扰。为保证微机系统可靠地工作,本文提出了若干提高单片机系统可靠性的措施,并进行了分析和介绍。 相似文献
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本文介绍了以MCS-51系列单片微机为核心的镀液pH值检测系统的基本原理,并对系统的硬件构成、软件设计和抗干扰措施等有关问题进行了详细介绍。 相似文献
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This paper proposes a novel implementation strategy for soft switching PFC whose circuit is simple and can achieve low voltage output directly. The main circuit adopts current mode full-bridge converter and all the power switches can realize ZCS or ZVS in the way of phase-shlfted control, using the leakage inductance of the transformer, the junction capacitor of the switches and the stored energy of the output capacitor. The problems such as the function of phase-shlfted link in control circuit, the implementation conditions of soft switching and bias restrained are analyzed. The adoption of constant frequency PWM control makes the design of the input and output filter link and the high frequency transformer simple. The transformation ratio regulation so as to achieve low voltage output and electrical insulation can be realized by using high frequency transformer. 相似文献
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0IntroductionFull-bridge inverter circuit is an ideal structure in thewelding power supply.In the past,the full bridge topologyoften manipulated load resonant with frequency modulationor ZVS phase-shifting full bridge soft switching technology.The former … 相似文献
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