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Hardware safety chain control method in upgrade process of control system of wind generating set

A technology for wind turbines and hardware security, applied in sequence/logic controller program control, electrical program control, etc., can solve the problems of wind farm power loss, disconnection, and increased workload of wind farm debugging personnel, etc. Achieve the effect of improving power generation efficiency, saving labor costs, and improving maintenance convenience

Active Publication Date: 2013-07-31
DONGFANG TURBINE CO LTD +1
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Problems solved by technology

[0005] However, according to the upgrade method provided by the existing PLC or other hardware platforms, for a wind farm with hundreds of wind turbines, every time the software is upgraded and maintained, the control system will reset the relevant digital output during the upgrade process and restart. The internal safety chain control switch in the hardware safety chain control circuit is disconnected. On the other hand, the control system does not output a signal to the watchdog for a long time during the upgrade process, which will also cause the watchdog control hardware watchdog control switch to be disconnected. Therefore, the staff must reset each wind turbine on the spot for each upgrade, which will not only greatly increase the workload of the wind farm commissioning personnel, but also cause a relatively large loss of power generation to the wind farm

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  • Hardware safety chain control method in upgrade process of control system of wind generating set

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Embodiment Construction

[0028] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0029] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0030] Such as figure 2 , the control method among the present invention comprises:

[0031] Step 1: After the upgrade module receives the upgrade command, it outputs an upgrade handshake signal to the hardware safety chain control module;

[0032] Step 2: After receiving the handshake signal, the hardware safety chain control module outputs a response signal to the upgrade module and enters the upgrade mode at the same time;

[0033] Step 3: The upgrade module starts to receive the upgrade progra...

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Abstract

The invention discloses a hardware safety chain control method in an upgrade process of a control system of a wind generating set, relates to a wind power generation technology, and aims at providing a control method allowing that a hardware safety chain cannot generate safety chain movement in the upgrade process of the control system. The method comprises the steps that Step 1, an upgrade module outputs an upgrade handshake signal to a hardware safety chain control module after receiving an upgrade instruction; Step 2, the hardware safety chain control module outputs an answering signal to the upgrade module after receiving the upgrade handshake signal, and enters an upgrade mode simultaneously; Step 3, the upgrade module begins to receive an upgrade program after receiving the answering signal, and outputs an upgrade completion signal to the hardware safety chain control module after the upgrade is completed; and Step 4, the hardware safety chain control module returns to a normal mode after receiving the upgrade completion signal.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a control method for a hardware safety chain in the process of upgrading a control system of a wind power generating set. Background technique [0002] With the increase of the proportion of wind power installed capacity in the power grid, the technical requirements of the power grid for wind power are also getting higher and higher, requiring wind turbines to provide more functions to meet the requirements of the power grid. At the same time, the owner is also strengthening the management of wind farms, which means The wind turbine control system needs to have the ability to continuously upgrade and transform according to the increasing needs of users. [0003] Due to safety design requirements, wind turbines generally have a hardware safety chain as their last protection measure. figure 1 It is an existing wind power generating set hardware safety chain control circuit, whic...

Claims

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Application Information

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IPC IPC(8): G05B19/04
Inventor 邵勤丰曾斌蒋驰雷陈建国程伟项勤建刘显波刘小艳钟涵廖宏王秉旭王东升孟新光曹碧生黄晓军闵渊张云辉韩松汪佳宇
Owner DONGFANG TURBINE CO LTD
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