Technology Research of Integrator for Rogowski Electronic Current Transducer

Electronic current transducer based on Rogowski coil has been applied in the power system.The performance of integrator is a main factor affecting the stability and precision in the Rogowski transducer.In this paper,the format of implement is described,the transfer functions are given based on their principle,and the amplitude-frequency characteristic and phase-frequency characteristic are analyzed.Finally,combining with the actual application in the project,a digital actuator was designed.The testing results prove the validity and practicability of the design method.