变频器调速及其输出参数修正原因分析

ANALYSIS ON CONVERTER SPEED REGULATION AND OUTPUT PARAMETER CORRECTION

摘要: 本文从理论与实际相结合的角度论述了湖南黄沙坪铅锌矿5 5kW砂泵电动机变频器调速低限频率由6Hz提高到18Hz、同时又适当增大变频器输出电压最大整定值U_m的原因。另外介绍了黄沙坪矿采用变频器后取得的经济效益

Abstract: The paper discusses the reason that the lower limiting frequency of converter for 55kW sand pump motor used in Huangshaping Lead-Zinc Mine was raised from 16Hz to 18Hz,and the Max.Setting value Um of output voltage of the converter was raised.The paper also introduces the economic benefits reaped by adopted the converter in the mine.