Photovoltaic control system achieving water supply automatic adjustment through frequency converter

Abstract

The invention discloses a photovoltaic control system achieving water supply automatic adjustment through a frequency converter. The photovoltaic control system achieving water supply automatic adjustment through the frequency converter comprises a photovoltaic control module, the frequency converter and a water supply module. The photovoltaic control module is provided with a solar panel, a photo-electricity conversion module, a storage battery, a power module and a motor driver. The frequency converter is arranged on one side of the photovoltaic control module. The frequency converter is provided with a rectifying circuit, a filter circuit, a signal sensor, a light sensor, a drive circuit and a current and voltage signal processing module. The water supply module is arranged on one side of the frequency converter. The water supply module is provided with a controller. A frequency adjuster is arranged on one side of the controller. A flow speed sensor, a liquid level sensor, a data collecting module and a water flow control module are arranged at one end of the controller. The photovoltaic control system achieving water supply automatic adjustment through the frequency converter achieves that water supply is automatically controlled, avoids the situation that other energy sources are consumed to provide electric energy for operation of a drive device and has the effects of saving energy and being environmentally friendly and intelligent.

Description

technical field [0001] The invention relates to the technical field of photovoltaic automatic control, in particular to a photovoltaic control system that realizes automatic adjustment of water supply through a frequency converter. Background technique [0002] Traditional fuel energy is decreasing day by day, and the damage to the environment is becoming more and more prominent. At the same time, there are still 2 billion people in the world who do not have normal energy supply. At this time, the whole world is turning its attention to renewable energy, such as solar energy, wind energy, biomass energy, tidal energy, etc., hoping that renewable energy can change the energy structure of mankind and maintain long-term sustainable development. Among energy sources, solar energy has become the first choice of experts. Regardless of the amount of resources, the universality of distribution, or the cleanliness and reliability of technology, solar energy is superior to other renew...

AI Technical Summary

Problems solved by technology

However, the above theory operates under the set ideal motor state, but in practical applications, the quality of the motor varies widely, and there are many types of application conditions, so there will be many motors due to unknown reasons such as changes in internal resistance and load fluctuations. , causing problems such as unstable operation of the motor, unbalanced motor current, and overheating of the motor

[0005] Because the frequency converter is used to change the frequency of the motor power supply, the speed of the water pump can be adjusted to change the outlet pressure of the water pump. Compared with the way of controlling the outlet pressure of the water pump by adjusting the valve, it has the effect of reducing the pipeline resistance and greatly reducing the interception loss. The current automatic water supply device consumes electric energy. There are quite a lot of them, and most of the water supply devices are currently controlled by flow control valves. The electric energy consumed by the operation of the devices is the electric energy generated by thermal power generation and wind power generation.

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