CAJ | 학술논문

针对异步电机效率优化问题,得出了合理调节电机中的有功功率和无功功率的比例可以使电机的运行效率最大的结论,并探讨了在有功无功功率合理匹配比下的变频调速系统的控制特性,同时指出了功率合理匹配原理与常见的"铜耗等于铁耗,电机效率最大"原理的本质区别.
침대이보전궤효솔우화문제,득출료합리조절전궤중적유공공솔화무공공솔적비례가이사전궤적운행효솔최대적결론,병탐토료재유공무공공솔합리필배비하적변빈조속계통적공제특성,동시지출료공솔합리필배원리여상견적"동모등우철모,전궤효솔최대"원리적본질구별.
The ratio of active power to reactive power in asynchronous machines was investigated for the asynchronous machine efficiency optimization,and a conclusion was drawn that when the ratio of active power to reactive power was elabo-lately and reasonably chosen,the asynchronous machine could operate with maximal efficiency.Meanwhile control character-istics of the variable-frequency speed regulation for an electrical drive system applied with the reasonable ratio of active power to reactive power were studied.The differences between the conventional principle of "machine operates with maximal efficiency on the condition that the core losses equals to copper losses" and the proposed control principle were also pointed out.