哈尔滨工程大学学报Issue(2)：202-207,6.DOI:10.3969/j.issn.1006-7043.201211099
双均流母线的均流电路及其控制方法
The current-sharing circuit with dual current-sharing buses and its control method
摘要
Abstract
When multiple DC powers operate in parallel, it is necessary to adopt the current-sharing control for im-proving the operational security and reliability. In many existing current-sharing control algorithms, the maximum current-sharing method is widely used because of its simple circuit, good current-sharing effect and reliable opera-tion. However, the maximum current-sharing method can only realize the dynamic current-sharing control, which results in the low frequency oscillation in the output current and the overvoltage in the output voltage. In order to o-vercome these shortcomings of the maximum current-sharing method, the dual current-sharing bus method is pro-posed. There are two parts of the unique current-sharing bus′ hardware architecture, which can present the maxi-mum output current signal and the maximum output current difference signal, respectively. Each DC power supply participating in the current-sharing control takes these two signals as the basis, so as to form the intermediate cur-rent-sharing method, the minimum current-sharing method and several other different control strategies. The simula-tion analysis and experimental verification show that the current-sharing effect of the minimum current-sharing meth-od is similar with that of the maximum current sharing method, but the intermediate current-sharing method can re-alize steady current-sharing control, eliminate the low frequency oscillation and overvoltage fundamentally, further improving the power quality while satisfying the requirements of safety.关键词
双均流母线/均流电路/均流控制/控制策略/直流电源Key words
dual current-sharing buses/DC power supply/current-sharing circuit/current-sharing control method/control strategy分类
信息技术与安全科学引用本文复制引用
张强,张敬南,姚绪梁,霍虹..双均流母线的均流电路及其控制方法[J].哈尔滨工程大学学报,2014,(2):202-207,6.基金项目
国家自然科学基金资助项目（50907013）；哈尔滨市科技创新人才研究专项资金资助项目（2012RFQXG084）；哈尔滨工程大学中央高校基本科研业务费专项资金资助项目（ HEUCFX041402）． （）
