Photovoltaic pump water and cooling-warming supply integrated

A photovoltaic water pumping and photovoltaic power generation system technology, applied in the field of solar photovoltaic utilization, can solve the problems of large power consumption, high cost, and poor utilization of the temperature difference between water and the surface environment, etc., and achieve a good temperature adjustment effect

Inactive Publication Date: 2008-03-12
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the water pumped by the photovoltaic water pumping system is directly taken or stored for vegetation irrigation, etc., but the temperature difference between the water and the surface environment cannot be well utilized
In summer, the indoor temperature is very high, and air conditioners are often needed to cool down. In winter, the indoor temperature is very low, and air conditioners are also needed to heat up. This not only requires higher costs, but also consumes a lot of electric energy.

Method used

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  • Photovoltaic pump water and cooling-warming supply integrated

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Embodiment 1

[0020] Figure 1 shows an embodiment of the system of the present invention. The solar photovoltaic power generation system [1] is composed of a solar cell array, a power converter and a controller, etc., used to provide electrical energy for the motor and the water pump [2]; solar cell array It is formed by using multiple Sanyo high-performance HIT batteries in series and parallel, which converts solar energy into direct current electric energy; the power converter converts this direct current into electric energy in the form required by the motor. In the embodiment of the present invention, a three-phase alternating current asynchronous motor is used. The inverter adopts a three-phase full-bridge inverter structure, and the power electronic device adopts an intelligent power module (IPM). The power converter converts the DC power output by the photovoltaic array into the three-phase AC power required by the motor and then supplies the three-phase AC asynchronous motor. The contro...

Embodiment 2

[0022] Compared with Embodiment 1, the difference is that a conventional power source is added as a backup power source. When the solar photovoltaic power generation system has insufficient power, the selector switch is automatically switched to the conventional power source to supply power to the submersible motor.

Embodiment 3

[0024] Compared with Example 2, the difference is that an electric fan is added next to the U-shaped tube group to promote heat exchange between the U-shaped tube group and the surrounding environment. The power supply of the electric fan is given priority to the solar photovoltaic power generation system. When the solar photovoltaic power generation system has insufficient power Automatically switch to regular power supply when

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Abstract

The invention discloses a high-efficiency photovoltaic pumping system with the cold and warm supply function, belonging to the solar photovoltaic technology field, which is characterized in that the sunlight energy is absorbed by the solar battery array, the sunlight energy is converted into the electric energy which is supplied to various types of motors through a power converter or DC motor driver in order to drive a water pump to lift water from a deep well, and the groundwater lifted from the photovoltaic water pump is used in humans and animals or vegetation irrigation after passing through a U-shaped pipe group. As the deep groundwater has the characteristic of cool in summer and warm in winter, the U-shaped pipe implements the heat exchanged with the surrounding environment in order to play a role in air conditioning. Only the device is added with the very simple U-shape pipe group on the basis of the previous photovoltaic pumping system, the cold and warm supply function can be realized, which is very economical and practical. The invention has the advantages of the simple structure, saving energy and environmental protection, cool in summer and warm in winter, lifting water with the solar energy to solve the problem of the human and animal drinking water and the vegetation irrigation, supplying coldness in summer and warmness in winter for the surrounding environment and improving the surrounding environment.

Description

Technical field [0001] The invention integrates the photovoltaic water pumping system with the cooling and heating supply of the residence, and belongs to the field of solar photovoltaic utilization technology. Background technique [0002] In many areas of our country, there is little precipitation, perennial drought, and the growth of vegetation is restricted. It is very difficult for humans to supply water for life. However, these areas are very rich in solar energy resources and have quite good groundwater resources. The best solution is to use local Abundant solar energy resources, the development of photovoltaic water pumping systems that do not require fuel consumption, pollution, easy to transport and install, and simple to maintain. The abundant groundwater is drawn to the surface through water pumps for human and livestock drinking and vegetation irrigation. This is a solution to rural areas in China, especially in China. Drinking water and vegetation irrigation in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/00F24J3/08F24F5/00
CPCY02E10/10Y02B10/40
Inventor 付青
Owner SUN YAT SEN UNIV
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