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Middle-high-voltage high-power photovoltaic water pump control system and method

A photovoltaic water pump and control system technology, applied in the control system, pump control, photovoltaic modules, etc., can solve the problems of photovoltaic pump station design that cannot meet the requirements and high power, and achieve high security, anti-interference ability, and high security , to ensure the effect of complete isolation

Pending Publication Date: 2021-12-03
YUNNAN SANTE PHOTOVOLTAIC TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to solve the problem that the existing medium and high voltage high-power photovoltaic water pumps have relatively large power, and the design of ordinary photovoltaic pump stations can no longer meet the requirements

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, if the terms "installation", "connection" and "connection" are used, they should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection or an integral connection; i...

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Abstract

The invention discloses a medium-high-voltage high-power photovoltaic water pump control system and method, and belongs to the technical field of photovoltaic water pump control. The system comprises a photovoltaic power generation assembly and a photovoltaic water pump, and further comprises high-voltage frequency conversion power units and a DSP control system, the high-voltage frequency conversion power units are electrically connected with the photovoltaic power generation assembly, the high-voltage frequency conversion power units are further connected with the DSP control system, and the DSP control system comprises an SVPWM module and an MPPT module. The plurality of high-voltage variable-frequency power units are connected in series to form a group, and three groups of high-voltage variable-frequency power units are arranged in total and form a Y-shaped connection method so as to supply power to the photovoltaic water pump; high voltage and power control output is achieved through low photovoltaic voltage power supply, the electrical insulation requirement for all equipment units is greatly lowered, the system safety is greatly improved, and the control use of the medium-high-voltage large-power photovoltaic water pump can be better met.

Description

technical field [0001] The invention discloses a medium-high voltage and high-power photovoltaic water pump control system and method, and belongs to the technical field of photovoltaic water pump control. Background technique [0002] The solar photovoltaic water pump system is a new type of water pump system, which uses solar cells to convert solar energy into electrical energy, and then uses the supporting power electronic device to drive the water pump to pump water; it does not need to rely on the power grid, as long as there is sunshine, the photovoltaic water pump can work . The solar photovoltaic water pump system is mainly composed of three parts: solar power generation system (solar battery array), photovoltaic water pumping inverter control system (photovoltaic water pumping inverter) and water pumping system (photovoltaic water pump). The principle of the system is as follows: the solar cell array is composed of multiple solar cell components connected in series...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/04H02P27/08H02P25/16H02S40/30F04B49/06F04B49/20
CPCH02P27/04H02P27/08H02P25/16H02S40/30F04B49/06F04B49/20Y02E10/50
Inventor 李勇刘云庄勇李嘉欣
Owner YUNNAN SANTE PHOTOVOLTAIC TECH CO LTD
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