Group control method of small and micro submersible pumps in multi-open boundary tidal test system
A test system, multi-open boundary technology, applied in pump control, liquid variable capacity machinery, machine/engine, etc., can solve problems such as line fluctuations and affect the normal operation of other electrical equipment, and achieve good dynamic balance.
Inactive Publication Date: 2016-07-06
GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER
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Such a large starting current will cause large fluctuations in the line and affect the normal operation of other electrical equipment
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. The schematic implementation and description of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0026] The small and micro submersible pump group control system of the multi-open boundary tidal test system of the present invention is composed of a tailgate actuator, a water level monitor, a decoder, a relay and a drive system, a special industrial control cabinet and a computer, an anti-interference power supply and a submersible pump, etc. composition. The status of each submersible pump can be controlled through the group control system.
[0027] Such as figure 1 As shown, according to the needs of experimental research, hundreds of small or micro submersible pumps are arranged on each boundary of the preset test model. By calculating the flow change trend an...
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A group control method for small and micro submersible pumps in a multi-boundary tidal test system, comprising the following steps of real-time monitoring and controlling the flow of each boundary entering and leaving a preset test model; calculation and analysis to obtain the flow change trend results of each boundary; real-time monitoring and access The current of phase A, phase B and phase C of the three-phase power grid of the submersible pump; judge the dynamic balance of the three-phase power grid, if any phase of the three-phase power grid is closed, and the other two phases are disconnected, the next step will be executed; according to the flow As a result of the change trend, control the on or off state of the submersible pump corresponding to the corresponding boundary orientation, the time to turn on or off, and maintain the balance of the three-phase power grid. The present invention can adapt to various monitoring objects, and solves the technical problem of accurately repeating complex tides and tidal currents in the test model; it can frequently change the number, coordinate position, and power-on time of controlled objects such as inflow and drainage submersible pumps, The dynamic balance of the three-phase power grid is good.
Description
technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and in particular relates to a multi-open boundary tidal current simulation test system based on a group of small and micro submersible pumps. Background technique [0002] The hydraulic physical model test is an important means to study hydraulics. The tidal model automatic measurement and control system is a special facility for simulating natural tidal phenomena. It can make the natural tidal process strictly on the physical model according to a certain geometric and time scale. recurrent. [0003] The various types of tides and currents studied in the physical model test are controlled by a large number of small or miniature one-way submersible pumps (up to more than 500 units) distributed on each boundary of the model, and the water intake and discharge are respectively controlled by the computer according to the program. formed by size. Therefore, the ...
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IPC IPC(8): F04B49/06
Inventor 刘敏袁明道张旭辉潘展钊黄为民赖佑贤刘洪
Owner GUANGDONG RES INST OF WATER RESOURCES & HYDROPOWER