Full-intelligent dynamic yaw control system

An intelligent dynamic, yaw control technology, applied in the control of wind turbines, engines, wind power generation, etc., can solve the problems of single function and poor effect, and achieve the goal of improving accuracy, good control effect, and reducing yaw load. Effect

Inactive Publication Date: 2021-02-02
沈阳鑫聚成风电工程机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the function is single and the effect is poor

Method used

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  • Full-intelligent dynamic yaw control system
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Embodiment Construction

[0010] Below in conjunction with accompanying drawing this embodiment is described in detail

[0011] Depend on figure 1 It can be seen that the present invention adopts centralized management and decentralized control mode, which is centrally managed by the main control system PLC and controlled by the built-in PLC of the frequency converter. The frequency converter adopts a frequency converter with a built-in PLC module inside, which can save the cost of purchasing PLC separately.

[0012] The yaw motor drive method adopts one inverter with multiple yaw motors to save installation space. The yaw motors are connected in parallel, and the protection devices of the yaw motors are connected in series to ensure that all motors are not allowed to run after the protection device of any motor on the load is triggered, so as to avoid greater losses.

[0013] Three control modes: remote mode, local automatic mode, local manual mode. In the remote mode, the frequency converter (1-3) ...

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Abstract

The invention provides a full-intelligent dynamic yaw control system. The full-intelligent dynamic yaw control system is mainly characterized in that a remote mode is that a frequency converter receives an instruction sent by a main control system of a fan through communication so as to control a yaw motor to act; a local automatic mode is that the frequency converter automatically controls the yaw motor of the fan to act, and when the fan system crashes or is abnormal, the frequency converter can automatically control the yaw motor to act; and a local manual mode is that the yaw motor of thefan acts by manually triggering a switch on a frequency converter cabinet body. The full-intelligent dynamic yaw control system has the beneficial effects that the impact on a transmission mechanicalstructure when the yaw motor is started and stopped under the power frequency of a power grid can be avoided, the fan operates stably, the yaw load of a fan unit can be reduced, damage to the mechanical transmission mechanism is reduced, the service life of the yaw motor is prolonged, and maintenance cost is reduced.

Description

Technical field: [0001] The invention relates to a yaw control system in the wind power industry, in particular to a fully intelligent dynamic yaw control system. Background technique: [0002] In the wind power industry yaw motor control mode, generally the main control system of the wind turbine directly controls the motor contactor through the PLC module control, and then the yaw motor is directly driven by the grid power frequency. It is characterized by low cost and simple control; the disadvantage is that it has a large impact on the mechanical structure and is easy to damage the mechanical transmission mechanism. At present, many yaw motors have been damaged after 3-5 years of operation. [0003] The general solution is to install a motor soft start device to play the role of soft start, so as to reduce the impact on the yaw transmission mechanism when the yaw starts and stops. But the function is single and the effect is poor. Invention content: [0004] The obj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/042F03D7/0204Y02E10/72
Inventor 苗雷佘宇威张彬
Owner 沈阳鑫聚成风电工程机械有限公司
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