Research of parameters variations impact on the static accuracy of solar array simulator

The authors analyze the static accuracy of two types of solar array simulators: based on voltage regulator with current functional feedback and based on current regulator with voltage functional feedback. Parameters and signals variations impact on the static error of simulators is considered as well. The authors suggested the methods of improving the simulator accuracy and give recommendations for optimal selection of solar array simulator structure to achieve minimal error. The impact of parameter variations of solar array simulator devices on the entire error is shown. Along with it the authors consider the devices which meet the exclusive demands for accuracy, such as functional generator and current sensor. The comparison between the impact of systematic error and random error on the solar array simulator accuracy is drawn as well.