Pitch change control system for tidal current energy generator set

A technology of generator set and control system, which is applied in ocean energy power generation, reaction engine, hydropower generation, etc., can solve the problems of remote maintenance, small hub space, and relatively high environmental temperature requirements, so as to reduce the tower shadow effect and reduce Effects of impact, avoided workload and downtime

Active Publication Date: 2018-11-23
GUAN HUADIAN TIANREN CONTROL EQUIP CO LTD
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Problems solved by technology

[0004] In the prior art, the hub space of the tidal current energy generating set is usually small, and the pitching mechanism applied to the horizontal axis tidal energy generating set is only a hydraulic type pitching system, that is, a hydraulic mot

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  • Pitch change control system for tidal current energy generator set
  • Pitch change control system for tidal current energy generator set

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. The drawings and specific embodiments are only used to illustrate the present invention, and are not used to limit the scope of the present invention and claims.

[0019] figure 1 It shows a schematic structural diagram of a pitch control system for a tidal current energy generating set in a specific embodiment, in which two pitch control units A and B connected in parallel are specifically shown, which can be used to control the power flow of two blades It can control the pitch operation of the generator set (hereinafter referred to as the generator set for short).

[0020] Pitch control units A and B control their corresponding permanent magnet synchronous motors 8 independently of each other, respectively receive instructions from the main control device of the tidal current energy generator set (hereinafter referred t...

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Abstract

The invention provides a pitch change control system for a tidal current energy generator set. The pitch change control system comprises at least two pitch change control units connected in parallel;each pitch change control unit mutually independently controls a corresponding permanent magnet synchronous motor, and correspondingly receives an instruction from an external tidal current energy generator set main control device and executes the corresponding pitch change operation according to the corresponding instruction; an Ethernet switch is arranged in one of the pitch change control units, the Ethernet switch can be in communication with the tidal current energy generator set main control device, and the other pitch change control units are connected to the Ethernet switch in a communication mode. According to the pitch change control system, the pitch change system can undergo control program upgrading, fault diagnosis, resetting and other remote maintenance under the conditionthat the generator set is not lifted beyond the water surface, a lot of workload and fault shutdown time of the operation that the generator set is lifted beyond the water surface are avoided; a pitchchange action in a large range from 0 degree to 90 degrees and 180 degrees to 270 degrees is achieved, and then the generator set can generate electricity during a flood phase and an ebb phase; and the independent pitch change is realized, and the influence of the tower shadow effect is reduced.

Description

technical field [0001] The invention belongs to the technical field of ocean tidal current energy power generation, and in particular relates to a pitch control system of a horizontal axis tidal current energy generating set. Background technique [0002] Ocean tidal current energy resources are one of the renewable clean energy resources, which are abundant near the coastal islands of our country. As the installed capacity of tidal current energy generators increases from small to large, and the small blades gradually develop to large blades, it is difficult for the fixed pitch system to meet the control requirements of tidal current energy generators. [0003] The pitch system of the tidal current energy generating set is a servo drive system installed in the hub of the tidal energy generating set. It changes the angular distance of the blades by receiving the position command from the main control of the unit, so that the impeller can better capture the kinetic energy of ...

Claims

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Application Information

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IPC IPC(8): F03B3/14F03B15/00F03B13/26
CPCF03B3/14F03B13/26F03B15/00Y02E10/20Y02E10/30
Inventor 唐江丰王振威岳俊吕峰孙东旭张俊刘朋飞
Owner GUAN HUADIAN TIANREN CONTROL EQUIP CO LTD
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