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Wind generating set safety chain control system

A technology for wind turbines and control systems, which is applied in the control of wind turbines, wind turbines, and wind power generation, and can solve problems such as inability to locate fault information, incapable of targeted processing, and power outages

Active Publication Date: 2013-05-08
欣达重工股份有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This kind of wind turbine control system has the following disadvantages: when a fault occurs, the wind turbine safety chain control system cannot locate the fault information, and when a fault occurs, it cannot perform targeted processing according to the corresponding fault, and can only use The pitch system executes an emergency feathering command, the converter system is disconnected, the yaw system is powered off, and the rotor braking system is activated, which reduces the working efficiency of the wind turbine

Method used

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  • Wind generating set safety chain control system

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Depend on figure 1As shown, the wind power generating set safety chain control system of the present invention includes a main control PLC, a pitch system, a converter system, a yaw system, a rotor braking system, a power supply unit, multiple fault nodes and safety relays K2, K3, K4 , K5, K7, K8, K9, K10, and K2, K3, K4, K5, K7, K8, K9, and K10 here are all for convenience of description, and cannot be regarded as limiting the protection scope of the claims.

[0022] The wind turbine safety chain control system also includes a safety PLC. The safety PLC is a dedicated safety PLC for the wind turbine. Each fault node is connected to the input of the safety PLC. Safety relays K2, K3, K4, K5, K7, One end of the coils of K8, K9, K10 is respectively connected to the output end of the safety PLC, and the other ends of the coils of ...

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Abstract

The invention discloses a wind generating set safety chain control system. The wind generating set safety chain control system comprises a master control programmable logic controller (PLC), a pitch system, a converter system, a yaw system, a rotor braking system, a power device, a plurality of failure nodes and a plurality of safety relays. An output end of the power device is respectively connected with the pitch system, the converter system, the yaw system and the rotor braking system through different relays. The wind generating set safety chain control system further comprises a safety PLC, the failure nodes are respectively connected with an input end of the safety PLC, and coils of the plurality of safety relays are respectively connected with an output end of the safety PLC. The wind generating set safety chain control system can accurately locate different failure information and dispose the different failure information in a specific mode.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a safety chain control system for a wind power generating set. Background technique [0002] As a kind of clean energy, wind energy has become a key energy source for current development. Wind power generation technology is a technology that converts wind energy into mechanical energy and then converts mechanical energy into electrical energy. With the continuous development of wind power generation technology, wind power generators are getting more and more The wider the application. [0003] In order to ensure the safe operation of wind turbines, a safety chain control system is usually configured for wind turbines. The safety chain control system can protect the wind turbines. When the generating set cannot keep running normally, the safety chain control system can make the wind generating set stop safely, so as to realize the protection of the wind generating s...

Claims

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Application Information

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IPC IPC(8): F03D7/04
CPCY02E10/723Y02E10/72
Inventor 左彬张水龙
Owner 欣达重工股份有限公司
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