摘要
通过理论结合实验的方法分析了负载电阻值对温差发电器几个重要电性能参数的影响,研究了负载电阻值对温差发电器电性能测试准确性的影响,得出结论:负载电阻值越大,温差发电器开路电压值越大,最大输出功率计算值越大。而内阻值受回路负载电阻值变化的影响较小,可选择与工作状态温差发电器内阻相接近的回路负载电阻,此时最大输出功率计算值与实际输出功率最为接近,可真实考核温差发电器电性能。
The influence of load resistance values on several important electrical performance parameters of thermoelectric generators were analyzed by combining theory with experiment,and the influence of load resistance value on the accuracy of electrical performance test of thermoelectric generators was researched.It is concluded that the larger the load resistance value,the larger the open-circuit voltage and maximum output power calculated value of thermoelectric generators.However,the internal resistance value was less affected by the change of load resistance value,load resistance close to the internal resistance of thermoelectric generators in working state could be selected,and meanwhile the calculated maximum output power is close to the actual output power and can assess the true electrical performance of thermoelectric generators.
作者
刘锐
王彪
LIU Rui;WANG Biao(Tianjin Institute of Power Sources,Tianjin 300384,China)
出处
《电源技术》
CAS
北大核心
2019年第10期1726-1728,共3页
Chinese Journal of Power Sources
关键词
温差发电器
负载电阻值
电性能
thermoelectric generators
load resistance value
electrical performance
作者简介
刘锐(1975—),男,天津市人,高级工,主要研究方向为温差电技术。
