A kind of solar power generation system control method

Abstract

A solar power generation system control device and method. The device includes a power generation module, an inverter module, a main control module and a debugging module; the power generation module includes a solar generator set, a maximum power tracking control circuit and a battery pack; the inverter module includes an inverter, Simulate DC load and simulate AC load; the main control module includes DSP processor, maximum power tracking controller, battery controller, acquisition device and signal modulation circuit; the debugging module includes ARM7 processor, solar panel angle regulator and battery detection device . By monitoring the operating status of multiple sets of working parameters in real time, it is ensured that the power utilization rate is the highest while the load is working normally, and the stability of the system operation is improved. The variable step size perturbation observation method is used for maximum power tracking to ensure the actual effect of MPPT. Calculate the battery capacity and uninterrupted power supply time by combining the longest continuous rainy days, ambient temperature, and usage time to extend the battery life.

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 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 inexhaustible ene...

AI Technical Summary

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

Even though some attempts to optimize the solar power generation system have been made in recent years, the constructed power generation system has problems such as low utilization of solar cells, large fluctuations in output power, and overcharge or overdischarge of batteries.

Images