摘要
对PT铁磁谐振的特征及产生机理进行理论分析,指出PT现场运行铁磁谐振的主要问题及现有消谐措施的局限性,最后提出了有效的抑制方案:PT二次侧开口三角两端采用瞬时零阻抗消谐法,改变系统参数,以消除铁磁谐振,并论证了这一方案抑制铁磁谐振的有效性。
The paper carries out the theoretical analysis of the characteristic and the mechanism of PT ferro-resonance and points out the main problems of PT ferroresomance in site operantion and the limitation of the existing harmonic cancellation measures.Finally,the effective control plan has been proposed,the both ends of the open-delta at PT seconday side are used by instantaneous zero-impedance harmonic cancellation method changing the system parameters,in order to eliminate the ferro-resonance.The proof shows that the plan is effective.
出处
《电气开关》
2011年第1期4-6,共3页
Electric Switchgear
关键词
PT
铁磁谐振
谐波
PT
ferro-resonance
harmonic
