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LVRT test control device

A technology of test control and low-voltage ride-through, which is applied in the direction of single-net parallel feeding arrangement, etc., can solve the problems of low test efficiency and complicated operation, and achieve the effects of simple operation, improved operation efficiency and convenient use

Active Publication Date: 2010-11-10
SHENZHEN HOPEWIND ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of complicated operation and low test efficiency of the existing low-voltage ride-through test console, and provide a test control device for testing the low-voltage ride-through capability of electric equipment

Method used

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Examples

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Embodiment Construction

[0024] like image 3 As shown, the low-voltage ride-through test control device of the present invention includes a parameter configuration unit 41, a control unit 43 and an interface unit 42, the parameter configuration unit 41 includes a display screen and a parameter input unit (not shown in the figure), and the control unit 43 includes a For the test command input unit that sends the test command, the interface unit 42 includes a connection device that is signally connected to the power grid fault simulator 2 .

[0025] Among them, such as Figure 4 As shown, the display screen uses the grid fault curve 40 as the background, the parameter input unit includes a parameter input device and an input parameter display area, and the parameter display area is associated with each state segment of the grid fault curve 40 to visually display the input parameters and the grid. Relationship of the state segments of the fault curve 40 . Generally, the state segments of the power gri...

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Abstract

The invention relates to an LVRT test control device which comprises a parameter configuration unit, a control unit and an interface unit; the parameter configuration unit comprises a display screen and a parameter input unit; and the control unit comprises a test instruction input unit, the interface unit comprises a connecting device connected with a power grid fault simulator through signals, the display screen takes a power grid fault curve as the background, and the parameter input unit comprises a parameter input device and an input parameter display area correspondingly associated with the state section of the power grid fault curve. The device takes the power grid fault curve as the background on the display screen, associates input parameters with the state section of the power grid fault curve so that an operator can directly and quickly input the parameters, understand the relationship between the input parameters and the state section of the power grid fault curve and quickly master the operation and application of an LVRT test system of a wind power generator unit, and simultaneously is simple to operate and convenient to use.

Description

technical field [0001] The invention relates to a test control device, in particular to a device for controlling and testing equipment such as wind turbines or converters to ensure uninterrupted grid-connected operation capability when a voltage drop occurs in a power grid. Background technique [0002] With the rapid development of the wind power industry and the increasing proportion of wind power installed capacity in the national power structure, more and more countries have put forward strict requirements for the access conditions of grid-connected wind turbines, one of which is an important requirement for wind power generation. Low Voltage Ride Through (LVRT) of the unit, that is, after the connected grid fails and the voltage of the wind farm drops, the wind turbine can ensure uninterrupted grid-connected operation through the low voltage ride-through capability, thereby avoiding serious removal of the wind farm. Affect the stability of the power grid system operatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
Inventor 周党生吴建华
Owner SHENZHEN HOPEWIND ELECTRIC CO LTD
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