HIGH-VOLTAGE POWER SUPPLY SYSTEM OF SPACE VEHICLE WITH INDUCTIVE-CAPACITIVE CONVERTER Russian patent published in 2017 - IPC H02J7/34 

FIELD: electricity.

SUBSTANCE: invention relates to onboard power supply systems of space vehicles, and can be used in designing and creating power supply systems of automatic space vehicles based on solar and storage batteries. According to the invention, the space vehicle power supply system comprises a solar battery, a battery, a voltage controller and a discharge device made in form of bridge voltage inverters with input capacitance C1-and C2-filters, active rectifier with output capacitive C3-filter, two transformers, a resonant parallel-series circuit, a control system, a current sensor and a load. A distinctive feature of the system is the method for connecting secondary windings of the transformers with parallel-series partial resonance circuit formed by two partial circuits, serial and parallel, each of which consists of a throttle and a capacitor. Wherein the parallel-serial partial resonance circuit provides for matching of the solar battery, which is a current source, and a storage battery, which is a voltage source. Frequency and pulse-width controlling of inverter voltage is realized in system.

EFFECT: increase of energy efficiency of high-voltage power supply system of the space vehicle by implementing "soft" switching of transistors in resonant operation mode of converters and elimination of electrostatic discharges between the circuits of the photodiodes of the solar battery due to converter operation on current branch of solar battery current voltage characteristic.

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