Control of Measurements Quality in Electric Power Systems with Wind Farms
Control of measurements quality is a process of classifying measurements into valid and erroneous. The paper presents a method developed for detecting gross errors in the measurements with low redundancy. These are the measurements of active power generation from a wind farm and active power flow in a line connected to this farm. An induction generator is installed at the wind farm. The method involves a comparison of the estimates of injections that are obtained for the PQ and RX models of an induction generator in the state estimation problem. Provided there are no errors in the measurement these estimates coincide.