Abstract
One of the features of solar array simulators used in the space industry is their higher dynamic characteristics compared to solar battery simulators used in the industry. In this regard, approaches to the design of both the power unit and the control system are somewhat different. A method for forming the volt-ampere characteristics of a solar array simulator used for testing power systems of spacecraft is presented. The essence of the proposed method is to present the solar array simulator as an inertialess current source, due to the approach of constructing the power part using the bypass current channel and a control system that allows you to synchronize its operation depending on the position of the operating point on the current-voltage characteristic of the solar array simulator. The article describes the structure of the power unit and the algorithm of the control system implemented in the Matlab / Simulink environment. The obtained simulation results confirm the effectiveness of the proposed method for the formation of the current-voltage characteristics of a solar array simulator.
Keywords
Solar array simulator, current-voltage characteristic, power module, topology, regulator, current stabilization, PWM.
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