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Storage battery discharge adjuster of all-adjusted bus-type satellite power supply

A technology of discharge regulator and satellite power supply, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of large bus voltage fluctuation and affect the stability of the whole satellite instrument, and ensure the output voltage and current, stable and stable. Effect of bus voltage

Active Publication Date: 2016-12-07
黑龙江省工研院资产经营管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the bus voltage of the satellite power supply is adjusted by using the non-adjustable bus mode and the semi-regulated bus mode, which causes the bus voltage to fluctuate greatly during the earth shadow period and affects the stability of the entire satellite instrument.

Method used

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  • Storage battery discharge adjuster of all-adjusted bus-type satellite power supply
  • Storage battery discharge adjuster of all-adjusted bus-type satellite power supply
  • Storage battery discharge adjuster of all-adjusted bus-type satellite power supply

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specific Embodiment approach 1

[0030] Specific implementation mode one: refer to Figure 1 to Figure 5 Describe this embodiment in detail, a kind of full regulation bus type satellite power storage battery discharge regulator described in this embodiment, it comprises storage battery pack, it also comprises buck topology circuit 1, current sampling unit 2, voltage sampling feedback unit 3, PWM control unit 4, switch tube drive circuit 5, control unit 6 and switch S,

[0031] The buck topology circuit 1 is used to step down the input voltage of the battery pack to provide a stable voltage for the bus,

[0032] The current sampling unit 2 is used to collect the discharge current signal of the storage battery pack, and convert the discharge current signal of the storage battery into a corresponding voltage signal I S , the voltage signal I S There are two channels, one voltage signal I S Output to the control unit 6 for subsequent conversion and storage, another voltage signal I S output to the voltage sam...

specific Embodiment approach 2

[0041] Specific embodiment 2: This embodiment is a further description of a full-regulated bus-type satellite power storage battery discharge regulator described in specific embodiment 1. In this embodiment, the buck topology circuit 1 includes an NMOS transistor VT and a diode VD , inductance L, capacitance C and resistance R,

[0042] The positive electrode of the battery pack is connected to one end of the switch S, the other end of the switch S is connected to the drain of the NMOS transistor, the source of the NMOS transistor is connected to one end of the inductor L and the negative electrode of the diode VD, and the other end of the inductor L is connected to one end of the capacitor C and one end of resistor R,

[0043] The positive pole of the diode VD is connected to the negative pole of the battery pack, the other end of the capacitor C and the other end of the resistor R at the same time.

[0044] The gate of the NMOS transistor VT is connected to the drive signal...

specific Embodiment approach 3

[0070] Specific embodiment three: This embodiment is a further description of a full-regulation bus-type satellite power storage battery discharge regulator described in specific embodiment one or two. In this embodiment, the current sampling unit 2 includes a resistor R S and current shunt monitor 2-1,

[0071] The current shunt monitor 2-1 is realized by the model INA282,

[0072] The positive input +IN of the current shunt monitor 2-1 of the model INA282 is connected to the resistor R S One end of the model INA282 current shunt monitor 2-1 negative input -IN connection resistance R S the other end of

[0073] The reference input terminal REF1 and the reference input terminal REF2 of the current shunt monitor 2-1 model INA282 are connected to the power ground,

[0074] V of the current shunt monitor 2-1 model INA282 + The terminal is connected to the power supply, and the OUT terminal of the current shunt monitor 2-1 of the model INA282 is used as the voltage signal outp...

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Abstract

The invention provides a storage battery discharge adjuster of an all-adjusted bus-type satellite power supply, relates to the field of storage battery discharging of a satellite power supply, and aims at solving the problems that bus voltage fluctuation during an earth shadow is very large and the working stability of a whole satellite instrument is affected since bus voltage of the satellite power supply is adjusted by employing an unadjusted bus mode and a semi-adjusted bus mode at present. A buck topological structure circuit carries out corresponding step-down conversion on input voltage of a storage battery pack; a current sampling unit converts discharge current of storage batteries into a voltage signal and outputs the voltage signal to a controller; a voltage sampling feedback unit samples the voltage output by the adjuster and then outputs the voltage; a PWM control unit outputs a pulse width signal through a feedback signal; a switch driving circuit carries out bootstrap driving on the pulse width signal for driving a switch tube of the buck circuit; and a control unit is used for receiving an output discharge output voltage signal, connecting a discharge circuit for providing a bus with electric energy when the bus voltage is reduced, and cutting off the discharge circuit when the bus voltage exceeds a required value.

Description

technical field [0001] The invention relates to the design of a full-regulation bus-type satellite power storage battery discharge regulator. It belongs to the field of satellite power storage battery discharge. Background technique [0002] The satellite power supply system is an important subsystem of the satellite platform. It is responsible for the important function of power supply for other satellite subsystems and payloads. Its basic function is to convert light energy, nuclear energy or chemical energy into The electric energy is stored, adjusted and transformed according to the needs, and then supplies power to the subsystems of the spacecraft. [0003] As far as the regulation mode of the satellite power bus voltage is concerned, its topological structure can be divided into three categories, non-regulation mode, semi-regulation mode and full regulation mode. Among them, the bus voltage of the non-regulated bus mode and the semi-regulated bus mode is in the groun...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J2207/20
Inventor 刘大同王少军路景枫彭喜元彭宇
Owner 黑龙江省工研院资产经营管理有限公司
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