CAJ | 학술논문

抽水蓄能机组在水泵运行方式下,同步发电机作为同步电动机在变频控制下起动主要有3个难点:发电机转子初始相位及低频运行时转子相位检测;根据转子所在的位置给相应绕组施加电流,并以正确方向旋转;发电机在低频运行阶段的断流换相问题.经过试验,找到了解决上述问题的方法,且控制简单可靠.
추수축능궤조재수빙운행방식하,동보발전궤작위동보전동궤재변빈공제하기동주요유3개난점:발전궤전자초시상위급저빈운행시전자상위검측;근거전자소재적위치급상응요조시가전류,병이정학방향선전;발전궤재저빈운행계단적단류환상문제.경과시험,조도료해결상술문제적방법,차공제간단가고.
There were three main problems when the synchronous motor starting through the static frequency convertor of the pumped-storage unit under pumping oper-ation mode: the initial phase position of the generator rotor, supplying voltage level to the relative winding based upon the rotor position and commutation problem in the condition of intermittent current under the low frequency. The simple but reliable solving problems were found through experi-ments.