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Satellite power controller

A satellite power supply and controller technology, applied in control/regulation systems, instruments, photovoltaic power generation, etc., can solve the problem of low reliability, low peak power tracking efficiency, and can not meet the power supply requirements of high reliability and high power density of satellite platforms, etc. problem, to reduce the launch cost, improve the efficiency and reliability of peak power tracking, and achieve the effect of light weight

Active Publication Date: 2017-05-10
SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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Problems solved by technology

However, the sequential switch shunt regulation (S3R) has high reliability, but the peak power tracking efficiency is low; the maximum power tracking control (MPPT) peak power tracking efficiency is high, but the reliability is low, which cannot meet the requirements of high reliability and low reliability of future satellite platforms. High Power Density Power Supply Requirements

Method used

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] Such as figure 1Shown is a schematic diagram of the satellite power controller of the present invention. A satellite power controller, used to track the peak power of N photovoltaic battery arrays connected in parallel, is characterized in that it includes N output diodes, a first switch S1, a second switch S2, a third switch S3, a second two Diode D2, third diode D3, input capacitor C1, output capacitor Co, inductor L1, input voltage sensor, input current sensor, output voltage sensor and control unit;

[0036] The output diodes are connected in parallel with each other, and the positive poles are respectively connected to a photovoltaic cell array, and the negative poles are connected to the positive pole of the second diode D2 in parallel;

[0037] The cathode of the second diode D2 is connected to the second switch S2, and the ot...

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Abstract

The invention provides a satellite power controller. The controller is used for tracking the peak power of N photovoltaic cell arrays which are in parallel connection. The controller comprises N output diodes, a first switch S1, a second switch S2, a third switch S3, a second diode D2, a third diode D3, an output capacitor C1, an output capacitor Co, an inductor L1, an input voltage sensor, an input current sensor, an output voltage sensor and a control unit. The satellite power controller combines the S3R sequential switch shunting regulation and MPPT maximum power point tracking control for enhancing the satellite power system peak power tracking efficiency and reliability, thus obtaining a satellite platform with high power, high efficiency and high reliability.

Description

technical field [0001] The invention belongs to the field of power control, in particular to a satellite power controller. Background technique [0002] With the development of space science and technology, spacecraft of various purposes are emerging, and high power, high reliability, and lightweight have become the main direction of spacecraft development. Therefore, improving the power density and reliability of the satellite power system is of great significance for realizing a high-power, high-reliability, and lightweight satellite platform. [0003] Improving the maximum output power of the solar cell array helps to reduce the overall weight of the satellite to increase the power density of the satellite power system. At the same time, adopting a highly reliable power system architecture helps to improve the reliability of the satellite platform. Conventional satellite power controllers usually use sequential switch shunt regulation (S3R) or maximum power tracking cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/67
CPCG05F1/67Y02E10/56
Inventor 张龙龙崔战国李林赵建伟李文晓王本东张振宇明旭东赵建树
Owner SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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