Realization method and system for control outer ring of solar array simulator

A technology of a solar array and an implementation method, applied in the field of power supply testing, can solve problems such as it is difficult to achieve stable operation of an I-V curve operating point, and achieve the effects of improving dynamic response performance, excellent linearity, and solving the problem of output current oscillation

Active Publication Date: 2017-08-29
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

However, no matter what type of output, simply using the UI table or RI look-up table method, there will always be a certain range of operating points on the set I-V curve

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  • Realization method and system for control outer ring of solar array simulator
  • Realization method and system for control outer ring of solar array simulator
  • Realization method and system for control outer ring of solar array simulator

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Embodiment Construction

[0056] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] The invention can be applied to space power supply test systems or digital solar array simulators in high dynamic characteristic power supply test occasions, and is also suitable for simulator applications in industrial and civil fields. This invention is based on the optimization of the implementation scheme of the digital control solar array simulator, and proposes the method of using UI-RI hybrid table lookup, which is beneficial to the working point of SAS on the entire set I-V curve and the linearity of power and current control Preferably, a stable output can be maintained at any operating point without being limited by the fill factor of the set I-V curve. At the same time, it is only necessary to sample the output terminal voltage and control the single inner loop current loop constant control method of...

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Abstract

The invention discloses a realization method and system for a control outer ring of a solar array simulator. The method comprises steps of generating a UI-RI mixed data table based on a UI data table and a RI data table; and acquiring the sampling voltage of the output of the solar array simulator, searching the UI-RI mixed data table according to the sampling voltage, and obtaining the desired current of the corresponding working point on the I-V curve set by the solar array simulator The method of adopting the UI-RI mixed look-up table in the invention is advantageous for the operating point of the SAS on the whole set I-V curve, the linearity of the power current control is excellent, and the stable output can be maintained at any working point without being limited by the fill factor size of the set I-V curve. In the SAS load operating point fast step switch condition, quick convergence to the switched target operating point is realized, the dynamic response performance of SAS is greatly improved, and high dynamic response enables the spacecraft power system testing to be more reliable.

Description

technical field [0001] The invention relates to the technical field of power supply testing, in particular to a method and system for realizing a control outer loop of a solar array simulator. Background technique [0002] The I-V voltage current signal generation technique can be analog or digital. The solar array simulator (Solar Array Simulator, SAS) circuit based on the analog circuit is simple and the cost is low. This type of simulator has two control loops: [0003] 1) Inner loop current loop; [0004] 2) Outer ring reference ring. [0005] Among them, the inner current loop is mainly to control the output current value of the PV source simulator. The solar array simulator based on the analog hardware I-V reference can generally use three analog reference circuits: [0006] 1) A small PV unit array with a light source is used to generate a current-voltage reference curve; [0007] 2) A photoelectric tube with a light-emitting diode is used to generate a current-v...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/042
Inventor 张东来金珊珊
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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