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PSIM software-based solar maximum power point tracking algorithm and simulation system

A technology of maximum power tracking and maximum power point, applied in computing, special data processing applications, instruments, etc., can solve problems such as complex calculation time of programs, inaccurate simulation results, etc., and achieve great flexibility, fast design speed, and accuracy high effect

Inactive Publication Date: 2010-04-14
广州市圣大电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problem that arises is that the simulation results are inaccurate. If only the fixed-step tracking method is used, the program will be complicated and the calculation time will be long.

Method used

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  • PSIM software-based solar maximum power point tracking algorithm and simulation system
  • PSIM software-based solar maximum power point tracking algorithm and simulation system
  • PSIM software-based solar maximum power point tracking algorithm and simulation system

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be pointed out that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] Such as figure 1 As shown, the embodiment of the present invention provides a solar maximum power point tracking calculation and simulation system based on PSIM software, including a solar photovoltaic cell model, and also includes voltage and current sensors connected to the output terminals of the solar photovoltaic cell model in sequence, and the solar photovoltaic cell model Maximum power tracking module MPPT.DLL, comparator, power conversion circuit;

[0027] The real-time voltage and current generated by the solar photovoltaic cell model are respecti...

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Abstract

The invention discloses a PSIM software-based solar maximum power point tracking algorithm and a simulation system. The simulation system comprises a solar photovoltaic cell model, a voltage sensor and a current sensor which are sequentially connected with the output end of the solar photovoltaic cell model, a solar maximum power tracking module MPPT.DLL, a comparer and a power conversion circuit, wherein after being respectively detected by the voltage sensor and the current sensor, the real-time voltage and the real-time current generated by the solar photovoltaic cell model are transferred into the solar maximum power tracking module MPPT.DLL to generate a control signal, the control signal and a carrier signal are processed by the comparer to output a PWM waveform signal, and the PWM waveform signal controls the duty factor of the power conversion circuit, thereby controlling the equivalent impedance of load connected with the output end of the power conversion circuit and realizing the maximum power point tracking of the photovoltaic cell.

Description

technical field [0001] The present invention relates to the research and simulation system of solar maximum power point tracking algorithm, especially relates to an algorithm that can adjust the output voltage and current according to the solar light intensity on the solar panel and the surrounding temperature of the solar battery, so that the load can always work in this environment maximum power point. Background technique [0002] From the perspective of energy, solar energy will surely realize its role transition from supplementary energy to alternative energy, and solar power will gradually develop from areas without electricity to areas with electricity. Photovoltaic cells are the core part of solar power generation. They have the function of converting solar energy into electrical energy. Maximum power point tracking can make the most efficient use of solar energy, reduce costs and increase utilization. [0003] Due to the particularity of photovoltaic cells, in phot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50H02N6/00
Inventor 雷健华
Owner 广州市圣大电子有限公司
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