CAJ | 학술논문

以发电机5阶实用模型为研究对象,利用励磁电压参考值的变化产生动态响应,采用蚁群算法辨识同步发电机参数,分析干扰的大小和类型对发电机参数辨识的影响.在RTDS仿真机组上验证了蚁群算法的可行性,结果表明,从扰动的大小上看,扰动越大,参数辨识的精度越高;从扰动的类型上看,白噪声激励下辨识精度较好,该激励更有利于激发同步发电机的次暂态过程;无论是哪种扰动方式,稳态参数的精度没有大的变化,改善的主要是次暂态参数的辨识精度.
이발전궤5계실용모형위연구대상,이용려자전압삼고치적변화산생동태향응,채용의군산법변식동보발전궤삼수,분석간우적대소화류형대발전궤삼수변식적영향.재RTDS방진궤조상험증료의군산법적가행성,결과표명,종우동적대소상간,우동월대,삼수변식적정도월고;종우동적류형상간,백조성격려하변식정도교호,해격려경유리우격발동보발전궤적차잠태과정;무론시나충우동방식,은태삼수적정도몰유대적변화,개선적주요시차잠태삼수적변식정도.
With the fifth order model of synchronous generator,the dynamic response of synchronous generator is generated by changing the excitation reference voltage,the synchronous generator parameters are identified by the ant colony optimization algorithm,and the influences of disturbance size and mode on identification accuracy are analyzed. The feasibility of ant colony optimization algorithm is verified on RTDS. Results show that,the larger the disturbance is,the higher the identification accuracy will be. As to the disturbance size mode,the identification accuracy is better when white noise is added,which more effectively stimulates the subtransient behavior of synchronous generator,and it improves the identification accuracy of subtransient parameters with little effect on that of steady-state parameters.