Impeller locking control system and control method and wind power generation unit
A wind turbine, locking control technology, applied in the direction of wind turbine, wind turbine control, wind power generation, etc., can solve problems such as damage, unit impact load, locking pin turning, etc., to prevent damage, reduce damage, and reduce dependence. Effect
Active Publication Date: 2020-03-10
JIANGSU GOLDWIND SCI & TECH CO LTD
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Problems solved by technology
[0004] It can be seen that the existing impeller locking system requires manual visual inspection of whether the impeller is rotated to the locked position
Due to the different judgment experience and operating proficiency of operators, if the operator makes a mistake in judging the impeller speed or the timing of manual operation is improper, the locking pin will be damaged by turning due to the forced locking of the impeller while it is still rotating.
In addition, if the rotor is forcibly locked during the rotation of the impeller and the rotor suddenly stops rotating, it will also cause an impact load on the unit and affect the life of the unit
Method used
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[0030] The present invention may have various modifications and various embodiments, and it should be understood that the present invention is not limited to these embodiments, but includes all modifications, equivalents and replacements within the spirit and scope of the present invention. For example, the order of operations described herein are examples only, and are not limited to those orders set forth herein, but, except for operations that must occur in a particular order, may be as would be after understanding the disclosure of the present application. Clearly changed that way. Also, descriptions of features that are known in the art may be omitted for increased clarity and conciseness. The terms used in the example embodiments of the present invention are for describing specific embodiments only, and are not intended to limit the example embodiments. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly dictat...
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The invention provides an impeller locking control system and control method and a wind power generation unit. The impeller locking control system comprises an impeller locking device, an impeller braking device, a position identification device and an impeller locking control device, wherein the impeller locking device comprises a lock pin arranged on a stator spindle and locking holes formed ina rotary shaft correspondingly; the impeller braking device is used for braking a rotor shaft to control the rotational speed of an impeller; the position identification device is used for detecting the relative rotation distance from the rotary shaft to a preset locking position; the impeller locking control device is used for controlling the impeller braking device to conduct braking to enable the rotary shaft to stop at the preset locking position under the conditions that the relative rotation distance detected by the position identification device meets the preset distance range and the rotational speed of the impeller meets the condition of the preset rotational speed and then driving the lock pin to be inserted into the corresponding locking hole. The impeller locking control systemcan implement staged braking and enables the rotary shaft to stop at the preset locking position through two-time braking.
Description
technical field [0001] The following description relates to the field of wind power generation, and more specifically, relates to an impeller locking control system, a control method and a wind power generating set. Background technique [0002] In recent years, wind power technology has developed rapidly. During the installation, commissioning and daily maintenance of wind turbines, it is necessary to perform impeller locking operations in advance to ensure the safety of operators and unit equipment. The impeller locking operation needs to be realized by means of the impeller locking device installed on the unit. [0003] Currently, operators usually need to climb into the engine room and perform manual operations based on experience and visual inspection results. Specifically, the impeller is first decelerated by blade pitch or mechanical friction. When the impeller speed drops to a certain range, the operator visually inspects and estimates that the locking pin is just ...
Claims
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IPC IPC(8): F03D7/00
CPCF03D7/00F05B2270/30Y02E10/72
Inventor 宁巧珍杨金宝王东亚
Owner JIANGSU GOLDWIND SCI & TECH CO LTD