【摘要】 基于Rogowski线圈的电流互感器与传统电流互感器相比具有广泛的应用前景,但Rogowski线圈的自身特性以及后续信号处理电路一直影响着电子电流互感器的测量精度。对Rogowski线圈的积分算法进行了研究,分别叙述了模拟和数字两种算法及其实现形式,设计了新的积分器,以进一步改善积分环节,提高电子电流互感器的测量精度。设计了数字积分器,其精度可满足IEC60044-8标准0.2级要求。更多还原

【Abstract】 The current transducers based on Rogowski coil is applied more extensively than traditional current transducers. But the characteristic and the follow-up signal processing electronic circuits of the Rogowski coil have affected the mea-surement accuracy of the electronic current transducers (ECT).The integral arithmetic of coil Rogowski is studied,the arithmetics of analog and digital,the form of implement are described.Different integration schemes are compared with the ideal integrator,which can improve the integral circuit further,the ECT’s measurement accuracy is improved.A digital in-tegrator is developed and tested.The accuracy experiments prove that the ECT reach the 0.2 class requirement in IEC60044-8。更多还原