Mppt control device, method and apparatus for satellite electric propulsion system

Abstract

The application discloses an MPPT control device, method and equipment applied to a satellite electric propulsion system, the MPPT control device comprising an MPPT reference voltage generating circuit and an MPPT algorithm basic circuit, the MPPT reference voltage generating circuit is used for generating a first reference voltage signal for controlling a solar cell operating point; the MPPT algorithm basic circuit is connected with the MPTT reference voltage generating circuit and a main circuit in the satellite electric propulsion system, the MPPT algorithm basic circuit is used for collecting an output voltage signal and an output current signal of the main circuit, and generating a control signal according to a second reference voltage signal after amplitude limiting processing of the first reference voltage signal, the output voltage signal and the output current signal, so as to control the MPPT reference voltage generating circuit through the control signal. The application can realize energy balance of the satellite electric propulsion system in an illumination period, a shadow period and the whole life period, realize maximum energy utilization, maintain bus voltage in a certain range, and guarantee high reliability and stable operation of the satellite power supply system.

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