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System and method for simulating output of solar cell array based on programmable power supply

A solar cell array and program-controlled power supply technology, applied in the field of satellites, can solve the problems of high cost and complicated simulator structure, and achieve the effects of simple structure, strong real-time simulation and low system implementation cost

Active Publication Date: 2013-02-13
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a simulation system based on the solar cell array output of the program-controlled power supply with simple structure and low cost, so as to solve the technical problem of complex structure and high cost of the existing simulator

Method used

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  • System and method for simulating output of solar cell array based on programmable power supply

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Embodiment 1

[0043] see figure 1 , the simulation system of the solar cell array output based on the programmable power supply of the present invention, comprising:

[0044] 1. The control computer is used to control the open circuit voltage V of the solar cell array OC , short-circuit current I SC , maximum power point voltage V MP and maximum power point current I MP , to set the maximum voltage of the programmable power supply V MAX and the maximum current I MAX . Among them, the control computer can be connected to the program-controlled power supply through a USB interface or a network port.

[0045] After the solar cell array is fabricated, the open circuit voltage V OC , short-circuit current I SC , maximum power point voltage V MP and maximum power point current I MP And other parameters can be obtained through special equipment testing. In the absence of a test environment, it can also be calculated based on the parameters of a single cell.

[0046] In this embodiment,...

Embodiment 2

[0052] The simulation method based on the solar cell array output of the program-controlled power supply of embodiment 1 may further comprise the steps:

[0053] S1: The control computer is based on the open circuit voltage V of the simulated solar cell array OC , short-circuit current I SC , maximum power point voltage V MP and maximum power point current I MP , to set the maximum voltage of the programmable power supply V MAX and the maximum current I MAX .

[0054] In this embodiment, the control computer simulates satellite attitude changes to obtain the sunlight incident angle θ of the solar cell array (usually controlled by attitude control simulation software); and simulates space light changes to obtain the sailboard temperature T (usually controlled by thermal control simulation software) Realize), and calculate the open circuit voltage V according to the sunlight incident angle θ (the angle between the normal line of the cell and the sun's rays), the temperature...

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Abstract

The invention discloses a system and a method for simulating the output of a solar cell array based on a programmable power supply. The system comprises a control computer, the programmable power supply and a resistor R, wherein the computer is used for setting a maximum voltage VMAX and a maximum current IMAX of the programmable power supply according to an open-circuit voltage VOC, a short-circuit current ISC, a maximum power point voltage VMP and a maximum point current IMP of the solar cell array; the programmable power supply is used for supplying power to a load under the limit condition of the maximum voltage VMAX and the maximum current IMAX; and the resistor R is connected between the programmable power supply and the load and is used for simulating the internal resistance of the solar cell array. By utilizing the system for simulating the output of the solar cell array based on the programmable power supply, a power supply working point can be adjusted according the load, thereby simulating the I-V curve output of the cell array; and the system is simple in structure and low in realization cost.

Description

technical field [0001] The invention relates to the field of satellites, in particular to a simulation system and method based on a program-controlled power supply for the output of a solar cell array. Background technique [0002] The solar battery array simulator is mainly used to simulate the output of the solar battery array, and is an important instrument for satellites to carry out ground model flight, power balance test, and power controller test verification. Under specific lighting conditions, the output current of the solar cell array changes with the load voltage. The connection line formed by the current corresponding to different voltages is the I-V curve of the solar cell array, and the point corresponding to the maximum value of I×V on the I-V curve is the battery. The maximum power point (MPP) of the array, the voltage and current corresponding to the maximum power point are V MP and I MP . The I-V curve of a solar cell array is affected by lighting condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01R31/00
Inventor 赵勇绳涛程云刘鹏飞宋新
Owner NAT UNIV OF DEFENSE TECH
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