Full-automatic efficient photovoltaic water pump system and control method thereof

A photovoltaic water pump, fully automatic technology, applied in the direction of pump control, machine/engine, liquid variable capacity machinery, etc., can solve the problems of low efficiency of photovoltaic water pumps, inability to accurately track the maximum power operating point in real time, etc., to achieve high cost performance and low cost The effect of low, reliable system performance

Inactive Publication Date: 2013-02-06
JIANGSU UNIV +1
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of existing photovoltaic MPPT controllers that cannot accurately track the maximum power operating point in real time and the efficiency of photovoltaic water pumps is low, and discloses a high-efficiency fully automatic photovoltaic water pump system based on neural network-based photovoltaic MPPT predictive control

Method used

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  • Full-automatic efficient photovoltaic water pump system and control method thereof
  • Full-automatic efficient photovoltaic water pump system and control method thereof
  • Full-automatic efficient photovoltaic water pump system and control method thereof

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Embodiment Construction

[0035] The system of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] Figure 5 It is a schematic diagram of the hardware structure of a high-efficiency fully automatic photovoltaic water pump system, which consists of photovoltaic array 1, DC / DC converter 2, DC / AC converter 3, brushless DC motor 4, Atmega128 controller 5, isolation circuit 6, and drive circuit 7. A storage battery 8, a special water pump 9, a back EMF detection circuit 10 and a liquid level sensor 11 are formed.

[0037] The output end of the photovoltaic array 1 is connected to the input end of the DC / DC converter 2, the output end of the DC / DC circuit 2 is connected to the battery 8 and the input end of the DC / AC inverter bridge 3, and the output end of the controller 5 is connected to the isolation circuit 6 The input end of the isolation circuit 6 is connected to the input end of the drive circuit 7, the output end of the drive circuit 7 is con...

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Abstract

The invention relates to solar photovoltaic water pumps, in particular to a full-automatic efficient photovoltaic water pump system realizing MPPT (maximum power point tracking) based on an intelligent control algorithm. The neural network predicative control algorithm and photovoltaic MPPT are fused and applied to the photovoltaic water pump system, adaptability of the system is improved, the system is adaptive to places frequent in weather variation, and quick and stable approaching of output voltage to the maximum power point voltage is realized. Moreover, the system can realize optimal matching of the water pump, a photovoltaic array and the motor and has the advantages of self-adaptability, stability, low cost and high efficiency.

Description

technical field [0001] The present invention relates to a solar photovoltaic water pump, in particular to a high-efficiency fully automatic photovoltaic water pump system based on an intelligent control algorithm to realize MPPT, involving the collection and transformation of solar energy and power electronics, motors, water pumps, computer control, detection technology and automation devices, etc. State-of-the-art technical issues in this discipline. Background technique [0002] Photovoltaic water pump system has the advantages of pollution-free, fully automatic, and low operating cost. Its basic working principle is to use solar cells to directly convert solar energy into electrical energy, and then drive the motor to drive the water pump through the controller. It is especially suitable for economic crops in areas without electricity. Irrigation and planting of greenhouse crops; my country is a large agricultural country, and the demand for irrigation is relatively large....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 施爱平施健高顺标叶丽华施允洋
Owner JIANGSU UNIV
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