改进的变电站蓄电池内阻测量方法的研究与系统设计

蓄电池作为变电站直流系统的备用电源,亦为关键电源失掉后的最后防线,其可靠性日益受到人们的重视.很多研究人员早已致力于蓄电池智能安全监测系统的研究,研究表明,蓄电池的内阻与荷电程度有较高的相关性,通过测量蓄电池内阻可较准确地预测其剩余容量.目前,国内外普遍认可四线法测量蓄电池内阻,但是这种方法的数据处理相当复杂.在该方法测量原理的基础上,提出了一种新的测量数据处理方法,很大程度上简化了测量.并详细介绍了该方法的原理和应用系统设计实现过程.实验表明,该方法简单可靠,精度高,具有良好的实用价值和推广意义.

Improved Methods for Battery Diagnosis and Its System Implementation Schemes

The last line of defense against critical power loss has historically been the DC battery.Many people have attached much importance to the availability of that battery.Much more researchers have already committed themselves to the intelligent battery validation systems' research.The research shows that the measurement of battery internal resistance could be used to predict most valve regulated lead acid(VRLA) battery failures,as its close relationship with the capacity of the VRLA battery.In light of the complexity of data processing with the traditional internal resistance measurement,a simplified data processing method is presented based on the principle of the traditional internal resistance measurement.Then,the very application system with this method is described in detail.At last,this method obtains a good result through a series of experiments with the special system.