CN103355136A - Photovoltaic lifting and water-saving irrigation automatic control system - Google Patents

Photovoltaic lifting and water-saving irrigation automatic control system Download PDF

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Publication number
CN103355136A
CN103355136A CN2012101051590A CN201210105159A CN103355136A CN 103355136 A CN103355136 A CN 103355136A CN 2012101051590 A CN2012101051590 A CN 2012101051590A CN 201210105159 A CN201210105159 A CN 201210105159A CN 103355136 A CN103355136 A CN 103355136A
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water
saving irrigation
lifting
programmable logic
logic controller
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CN2012101051590A
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吴永忠
朱俊峰
程荣香
王世锋
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Nanjing Water Conservancy and Hydrology Automatization Institute Ministry of Water Resources
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Nanjing Water Conservancy and Hydrology Automatization Institute Ministry of Water Resources
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping

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Abstract

The invention relates to a photovoltaic lifting and water-saving irrigation automatic control system, and belongs to the field of control theory and control engineering. A pressure sensor of the system is connected with an input end of a programmable logic controller; electromagnetic valves are connected with an output end of the programmable logic controller; the pressure sensor is mounted on a water delivery pipeline; and one electromagnetic valve is mounted on each branch pipe. The system can allow light energy of a photoelectric cell to be wholly converted into irrigation energy even if at different light intensities, and can allow water-saving irrigation equipment to keep regional stable working; flow and pressure energy meet requirements of the water-saving irrigation equipment; the uniformity of field irrigation within one day for the whole photovoltaic lifting and water-saving irrigation system is ensured; direct connection of photovoltaic lifting equipment and the water-saving irrigation equipment for working becomes possible; and the system can be extensively used in agricultural and animal husbandry production.

Description

光伏提水节水灌溉自动控制系统Photovoltaic Water Lifting Water Saving Irrigation Automatic Control System

所属技术领域 Technical field

本发明专利为一种光伏提水节水灌溉自动控制系统，属于控制理论与控制工程领域。The patent of the invention is an automatic control system for photovoltaic water-lifting and water-saving irrigation, which belongs to the field of control theory and control engineering.

背景技术 Background technique

由于光伏提水系统的流量、压力随不同光强而变化，在一天中，从零到峰值再到零，灌水器的流量平均值与最大值相差约3-4倍，出流稳定性差，无法为喷灌、滴灌等节水灌溉设备提供稳定的水源，不能保证灌溉的均匀度，从而使光伏提水与节水灌溉设备直接相连无法正常工作。Since the flow and pressure of the photovoltaic water lifting system change with different light intensities, in a day, from zero to peak value and then to zero, the average flow rate of the emitter is about 3-4 times different from the maximum value, and the outflow stability is poor. To provide a stable water source for water-saving irrigation equipment such as sprinkler irrigation and drip irrigation, the uniformity of irrigation cannot be guaranteed, so that the direct connection between photovoltaic water lifting and water-saving irrigation equipment cannot work normally.

发明内容 Contents of the invention

为了解决光伏提水与节水灌溉设备直接相连无法正常工作的问题，本发明专利特提出一种自动控制系统——光伏提水节水灌溉自动控制系统。In order to solve the problem that the direct connection between photovoltaic water-lifting and water-saving irrigation equipment cannot work normally, the patent of the present invention proposes an automatic control system——photovoltaic water-lifting and water-saving irrigation automatic control system.

本发明专利光伏提水节水灌溉自动控制系统主要由一台压力传感器、可编程逻辑控制器、多台电磁阀等组成。其结构是压力传感器与可编程逻辑控制器的输入端相联，电磁阀与可编程逻辑控制器的输出端相联，压力传感器安装在输水管道上，每一支管上安装一只电磁阀。The patented photovoltaic water-lifting and water-saving irrigation automatic control system of the present invention is mainly composed of a pressure sensor, a programmable logic controller, and multiple solenoid valves. Its structure is that the pressure sensor is connected with the input end of the programmable logic controller, the electromagnetic valve is connected with the output end of the programmable logic controller, the pressure sensor is installed on the water delivery pipeline, and an electromagnetic valve is installed on each branch pipe.

本光伏提水节水灌溉自动控制系统的工作过程为：光电池输出功率随着光强的变化而变化，输水管道的压力也跟着发生变化，压力传感器将压力信号送入可编程逻辑控制器，可编程逻辑控制器对输水管道压力进行实时监测。当输水管道压力达到一设定值时，开启一路支管上的电磁阀，当光强变大，输出功率上升时，输水管道压力增加到一定程度，可编程逻辑控制器测得后，指示执行元件动作，打开一路支管上的电磁阀，该支管上的喷头开始工作，管道压力随即会下降，保证开启电磁阀的各支管上的喷头能正常工作；当光强变小、输出功率下降时，输水管道压力下降到一定程度，可编程逻辑控制器测得后，指示执行元件动作，关闭一路支管上的电磁阀，该支管上的喷头停止工作，输水管道压力随即会上升，保证开启电磁阀的各支管上的喷头能正常工作。可编程逻辑控制器根据实时监测到的压力的变化，控制安装于各支管上电磁阀的开启与关闭，达到稳定管道压力的目的，使节水灌溉设备保持稳定工作。另外，根据太阳能资源和田间布置的情况，对每日的轮灌次数和每次各支管的工作时间进行设定，可编程控制器在打开各支管电磁阀的同时对各支管的工作时间进行计时，当工作时间到达设定值后，即关闭该支管，打开没有工作的支管，达到各支管在一日内出水量相等的目的。The working process of the photovoltaic water-lifting and water-saving irrigation automatic control system is as follows: the output power of the photovoltaic cell changes with the light intensity, and the pressure of the water pipeline also changes accordingly. The pressure sensor sends the pressure signal to the programmable logic controller. The programmable logic controller monitors the pressure of the water pipeline in real time. When the pressure of the water pipeline reaches a set value, open the solenoid valve on one of the branch pipes. When the light intensity increases and the output power rises, the pressure of the water pipeline increases to a certain level. After the programmable logic controller measures it, it will indicate When the actuator moves, the solenoid valve on one branch pipe is opened, the nozzle on the branch pipe starts to work, and the pressure of the pipe will drop immediately, so as to ensure that the nozzles on the branch pipes that open the solenoid valve can work normally; when the light intensity becomes smaller and the output power drops , the pressure of the water pipeline drops to a certain level. After the programmable logic controller measures it, it instructs the actuator to act, and closes the solenoid valve on one branch pipe. The nozzles on each branch pipe of the solenoid valve can work normally. The programmable logic controller controls the opening and closing of the solenoid valve installed on each branch pipe according to the real-time monitored pressure change, so as to achieve the purpose of stabilizing the pipeline pressure and keep the water-saving irrigation equipment working stably. In addition, according to solar energy resources and field layout, the number of daily rotation irrigation and the working time of each branch pipe are set, and the programmable controller will time the working time of each branch pipe while opening the solenoid valve of each branch pipe , when the working time reaches the set value, the branch pipe will be closed, and the non-working branch pipe will be opened to achieve the purpose of equal water output from each branch pipe in a day.

本光伏提水节水灌溉自动控制系统，即使在不同光强下，也能使光电池的光能全部转化为灌溉能量，使节水灌溉设备能够分区域保持稳定工作，不仅流量、压力能符合节水灌溉设备的要求，而且保证了整个光伏提水节水灌溉系统一日内田间灌溉的均匀度。使光伏提水与节水灌溉设备直接相连工作成为可能，能在农牧业生产中得到广泛使用。The automatic control system for photovoltaic water-lifting and water-saving irrigation can convert all the light energy of the photovoltaic cell into irrigation energy even under different light intensities, so that the water-saving irrigation equipment can maintain stable work in different regions, and not only the flow and pressure can meet the energy saving requirements. The requirements of water irrigation equipment, and ensure the uniformity of field irrigation within a day of the entire photovoltaic water-lifting and water-saving irrigation system. It is possible to directly connect photovoltaic water pumping with water-saving irrigation equipment, and can be widely used in agricultural and animal husbandry production.

附图说明：图1光伏提水节水灌溉自动控制系统的工作示意图。Description of the drawings: Figure 1 is a working schematic diagram of the automatic control system for photovoltaic water-lifting and water-saving irrigation.

具体实施方式：实施例(见图1)The specific implementation method: embodiment (seeing Fig. 1)

本发明专利光伏提水节水灌溉自动控制系统主要由压力传感器2、可编程逻辑控制器3、电磁阀4等组成；压力传感器2与可编程逻辑控制器3的输入端相联，电磁阀4与可编程逻辑控制器3的输出端相联，压力传感器2安装在输水管道1上，每一支管5上安装一只电磁阀4。The patented photovoltaic water-lifting and water-saving irrigation automatic control system of the present invention is mainly composed of a pressure sensor 2, a programmable logic controller 3, and a solenoid valve 4; the pressure sensor 2 is connected to the input end of the programmable logic controller 3, and the solenoid valve 4 Connected with the output end of the programmable logic controller 3, the pressure sensor 2 is installed on the water delivery pipeline 1, and an electromagnetic valve 4 is installed on each branch pipe 5.

Claims (1)

1.本发明专利为一种光伏提水节水灌溉自动控制系统，它主要由一台压力传感器、可编程逻辑控制器、多台电磁阀等组成；压力传感器与可编程逻辑控制器的输入端相联，电磁阀与可编程逻辑控制器的输出端相联，压力传感器安装在输水管道上，每一支管上安装一只电磁阀。1. The patent of this invention is an automatic control system for photovoltaic water-lifting and water-saving irrigation, which is mainly composed of a pressure sensor, a programmable logic controller, and multiple solenoid valves; the input end of the pressure sensor and the programmable logic controller Connected, the solenoid valve is connected with the output end of the programmable logic controller, the pressure sensor is installed on the water delivery pipeline, and an electromagnetic valve is installed on each branch pipe.
CN2012101051590A 2012-04-05 2012-04-05 Photovoltaic lifting and water-saving irrigation automatic control system Pending CN103355136A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017008668A1 (en) * 2015-07-11 2017-01-19 徐国兰 Position-adjustable drip irrigation device for garden use
CN110158705A (en) * 2018-02-08 2019-08-23 云南君动能源有限公司 A kind of lift selects excellent photovoltaic water pump system
CN115443891A (en) * 2022-10-09 2022-12-09 西北农林科技大学 Method and device for automatically adjusting drip irrigation flow according to solar irradiation intensity
CN115777492A (en) * 2022-11-09 2023-03-14 西北农林科技大学 Photovoltaic micro-sprinkling and drip irrigation compound device for adjusting energy by utilizing flexible water bag

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017008668A1 (en) * 2015-07-11 2017-01-19 徐国兰 Position-adjustable drip irrigation device for garden use
CN110158705A (en) * 2018-02-08 2019-08-23 云南君动能源有限公司 A kind of lift selects excellent photovoltaic water pump system
CN115443891A (en) * 2022-10-09 2022-12-09 西北农林科技大学 Method and device for automatically adjusting drip irrigation flow according to solar irradiation intensity
CN115443891B (en) * 2022-10-09 2023-09-26 西北农林科技大学 A method and device for automatically adjusting drip irrigation flow according to solar radiation intensity
CN115777492A (en) * 2022-11-09 2023-03-14 西北农林科技大学 Photovoltaic micro-sprinkling and drip irrigation compound device for adjusting energy by utilizing flexible water bag

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Application publication date: 20131023