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Microgrid-simulation variable-power asynchronous motor load experiment platform

A technology of asynchronous motors and experimental platforms, applied in the field of motors, can solve the problems of large scale and power ratio, and achieve the effects of avoiding impact, good reliability and simple structure

Active Publication Date: 2017-05-31
INNER MONGOLIA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Larger scale and power ratio

Method used

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  • Microgrid-simulation variable-power asynchronous motor load experiment platform
  • Microgrid-simulation variable-power asynchronous motor load experiment platform

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Experimental program
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Embodiment Construction

[0014] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] In the embodiment of the present invention, such as figure 1 As shown, the microgrid simulates the variable power asynchronous motor load experimental platform, the motor towing platform, the main control cabinet and the resistance cabinet with adjustable resistance value. The motor towing platform includes: asynchronous motor, synchronous generator and shaft coupling device, the main control cabinet includes: PLC controller, touch screen, drag motor soft starter and power quality testing instrument;

[0016] In the embodiment of the present invention, the JJ1000 soft starter for the dragging motor is used to start the squirrel-cage asynchronous motor, which can limit the starting current and reduce the voltage to start; reduce the impact of the starting current on the power grid; reduce the vibration and noise of the equipment, prolong the Mec...

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Abstract

The invention provides a microgrid-simulation variable-power asynchronous motor load experiment platform and belongs to the technical field of motors. The microgrid-simulation variable-power asynchronous motor load experiment platform comprises a motor twin trawling platform, a master control cabinet and a resistor cabinet with an adjustable resistance value, wherein the motor twin trawling platform comprises an asynchronous motor, a synchronous power generator and a coupling; the master control cabinet comprises a PLC (Programmable Logic Controller), a touch screen, a dragging motor soft starter and a power quality testing instrument. According to the microgrid-simulation variable-power asynchronous motor load experiment platform, load power can be set through the PLC based on simulating no-load and load operation of the asynchronous motor, the microgrid-simulation variable-power asynchronous motor load experiment platform is simple in structure, good in stability and reliability and convenient to use, avoids complex operation procedures like a machine set, can achieve soft start in zero torque (zero rotation speed), completely avoids impact of machine set start to a power grid, solves load operation only by adjusting resistance through controlling the touch screen, is very convenient to use and keeps very high stability in whole journey rotation speed (even zero rotation speed) and torque range.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a microgrid simulation variable power asynchronous motor load experiment platform. Background technique [0002] As a new type of power grid structure, the microgrid increases the flexibility of the system network on the basis of the traditional power network. When the microgrid is running off-grid, the asynchronous motor is used as a regular load of the grid. Larger in size and power. In order to study the influence of asynchronous motor load on the transient process of the microgrid's on-off grid operation state and seamless switching connection process. Specially developed this loading test device. The important purpose is to study, one is the influence of the reactive excitation of the asynchronous motor on the voltage and frequency of the micro-grid during the mode switching process of the micro-grid and off-grid; the other is the system energy feedback of the ...

Claims

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Application Information

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IPC IPC(8): G01R31/34G05B19/05
CPCG01R31/34G05B19/058G05B2219/163
Inventor 张飞刘丕亮李思泽任晓颖王金明
Owner INNER MONGOLIA UNIV OF SCI & TECH
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