An Improved Non-Inverting Integrator Resetting Circuit for One Cycle Control Strategy

One Cycle Control (OCC) is a non-linear control technique which correcting load and line disturbance within one switching cycle. The heart of the discrete-component-based OCC circuit is a resettable integrator. The reset-time of this integrator is taken to be zero ideally, but in practice, the reset time is finite. The performance of the one-cycle controller depends heavily on this resettable integrator and its resetting-accuracy. The conventional resettable-integrator circuits, as used for OCC, often causes unreliable resetting of integrator, thereby deteriorating the performance of the one cycle controller. This paper presents a brief study on the shortcomings of the conventional discrete hardware-based resettable integrator-circuit, as used for OCC, and presents a modified hardware circuit for the same. The performance of this proposed circuit is observed, analyzed and compared with the conventional circuit. The results clearly indicate the superior performance of the proposed circuit, as compared to the conventional circuit.