Generator set yaw drive system and method and generator set yaw system

Abstract

The invention discloses a generator set yaw drive system, and belongs to the technical field of generator set yawing. The generator set yaw drive system adopts a magnetoelectric structure, comprises a stator and a rotor which are oppositely fixed on a slewing bearing fixing member and a slewing bearing rotating member correspondingly, and further comprises a servo driving mechanism for supplying magnetizing current to the rotor, the rotor rotates relative to the stator under the effect of the servo driving mechanism, and then the slewing bearing rotating member achieves yaw motion relative to the slewing bearing fixing member. The stator and the rotor are arranged in the radial direction. A generator set yaw drive method and a generator set yaw system are also disclosed. The generator set yaw drive system, the generator set yaw drive method and the generator set yaw system use the magnetoelectric induction principle to realize the non-contact yaw action, the existing contact type gear meshing yaw drive action is replaced, and damage caused by the wear of a meshing component during long-term work is avoided; and the yaw system is simple in structure, simple in method, not prone to being damaged, long in service life and convenient to maintain and easy to replace.

Description

technical field [0001] The invention relates to the technical field of yaw of a generator set, in particular to a yaw driving system and method of a generator set and a yaw system of a generator set. Background technique [0002] With the promotion and in-depth development of the concept of new energy power generation, tidal current energy and wind turbines have become mainstream power generation devices in the field of new energy. The ocean tide and wind energy are used as the driving source for the operation of the unit, which has the variability of the flow direction. The current generator sets mostly use the yaw system to adjust the orientation of the generator set in order to capture the most driving energy. [0003] The current yaw system of the generator set adopts a mechanical structure, that is, the drive motor and the reduction gearbox are used as the power source, and the gear at the front end of the reduction gearbox meshes with the corresponding ring gear on th...

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Problems solved by technology

[0004] (1) Due to the harsh operating environment, the unit is affected by various uncertain factors and environmental conditions during operation. In addition, the mechanical structure is difficult to achieve full sealing, and problems such as component corrosion and accelerated wear are prone to occur

[0005] (2) Due to the gear meshing method, there is contact friction between the teeth, which is prone to wear and structural damage during long-term use, and due to factors such as the machining accuracy and technology of the tooth shape, it will also cause failures in the gear meshing contact parts

Since the whole cannot be sealed, the grease will be affected by the environment, and it is prone to uneven distribution and failure on the tooth surface, causing the ring gear to be damaged due to lack of lubrication

The lubrication pump also needs to be equipped with power supply and operating status monitoring, which further increases the complexity of the system

[0007] (4) At present, the mechanical yaw system and the unit are assembled in an integrated manner. Once the yaw ring gear and teeth are deformed or broken, the entire cabin needs to be removed from the operating environment for partial disassembly to complete the replacement, which is difficult to operate. The process is complex, time-consuming and costly to replace, resulting in long-term shutdown of the unit and greatly affecting power generation

[0008] It can be seen that the above-mentioned existing generator set yaw drive system obviously still has inconvenience and defects in structure, method and use, and needs to be further improved urgently.

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