Solar energy generating system control device and method

A power generation system and control device technology, applied in circuit devices, battery circuit devices, photovoltaic power generation, etc., can solve problems such as difficult to ensure dynamic and steady-state performance of the system, overcharge or overdischarge of batteries, and low utilization rate of solar cells

Inactive Publication Date: 2012-08-15
NORTHEASTERN UNIV
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Problems solved by technology

The current research is mainly aimed at the improvement of the algorithm and the improvement of the control circuit, without considering the whole set of power generation equipment, it is difficult to guarantee the dynamic and steady-state performance of the system
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  • Solar energy generating system control device and method
  • Solar energy generating system control device and method
  • Solar energy generating system control device and method

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Embodiment Construction

[0081] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0082] Solar power generation system control device of the present invention, such as figure 1 As shown, it includes power generation module, inverter module, main control module and debugging module.

[0083] The power generation module includes a solar generator set, a maximum power tracking control circuit and a battery pack.

[0084] The solar generator set uses SZST-180W / 24V solar panels. In order to realize the most effective use of solar battery components and make it receive and convert as much energy as possible throughout the year, when designing and installing the solar generator set, it is necessary to Consider the solar azimuth and the optimal tilt angle of the solar cell, and perform maximum power point tracking (MPPT for short) on the solar cell. The electric energy generated by the solar generator first enters the maximu...

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Abstract

The invention relates to solar energy generating system control device and method. The device comprises a generating module, an inversion module, a master control module and a debugging module, wherein the generating module comprises a solar energy generating set, a maximum power tracking control circuit and a storage battery pack; the inversion module comprises an inverter, an analog direct current load and an analog alternating current load; the master control module comprises a DSP (Digital Signal Processor), a maximum power tracking controller, a storage battery controller, a collecting device and a signal modulation circuit; and the debugging module comprises an ARM7 processor, a solar cell panel angle regulator and a storage battery detector. By monitoring running states under a plurality of groups of working parameters in real time, electric energy utilization rate is maximum and while ensuring the normal work of the load, so that the running stability of the system is improved. A variable step size perturbation and observation method is adopted to conduct maximum power tracking so as to ensure the practical effect of MPPT (Maximum Power Point Tracking). The capacity of a storage battery and uninterrupted power supply time can be calculated by combining the longest continuous overcast and rainy days, ambient temperature and duration, and the service life of the storage battery is prolonged.

Description

technical field [0001] The invention belongs to the field of new energy power generation and electrical technology, and in particular relates to a control device and method for a solar power generation system. Background technique [0002] With the rapid development of today's society, under the dual pressure of environmental pollution and resource scarcity, people are constantly looking for clean and renewable energy to replace traditional fossil fuels. As one of the new energy sources, solar energy has attracted more and more attention from more and more countries and has been widely used due to its large total storage capacity, easy access, and non-polluting use process. The solar energy irradiated on the surface of the earth in about 40 minutes is enough to provide the total energy consumption of human beings for a year, which shows that the total amount of solar energy that the earth can obtain is huge. It can be said that solar energy is truly inexhaustible and inexha...

Claims

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Application Information

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IPC IPC(8): H02N6/00H02J7/00H02S40/30
CPCY02E10/50
Inventor 马大中张化光崔瑾郭靖梁军胜孙秋野杨珺刘鑫蕊张欣
Owner NORTHEASTERN UNIV
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