Title:
WIND GENERATOR SET ACTIVE REGULATION METHOD AND APPARATUS BASED ON ADVANCE MEASUREMENT OF WIND SPEED
Document Type and Number:
WIPO Patent Application WO/2021/047192
Kind Code:
A1
Abstract:
A wind generator set active regulation method based on the advance measurement of wind speed. The method comprises: step 1, establishing a cost function according to an active regulation optimization objective of the operation of a wind generator set; step 2, establishing a state prediction equation for the wind generator set by using a wind speed measured in advance and a wind generator set model; step 3, solving, using a predicted state value, the cost function in order to obtain the sequence of the optimal given pitch angle and the sequence of a given torque; and step 4, using the sequence of the optimal given pitch angle of the wind generator set and a first element of the sequence of the given torque as an output of a controller. The method makes it possible, under a high-speed wind condition and when active power output is equal to target power, to reduce the actions of a variable-pitch mechanism and also reduce the fatigue load of a variable-pitch system, and also makes it possible to perform tracking and operating at the maximum power under a low-speed wind condition. Within each predicted step duration, only one of the pitch angle sequence or the torque sequence is used as a candidate limited control set, such that the operation amount of a controller is greatly reduced, and the engineering applicability is enhanced.
Inventors:
SONG DONGRAN (CN)
YANG YINGGANG (CN)
LIU JUNBO (CN)
CHANG QING (CN)
YANG JIAN (CN)
SU MEI (CN)
SUN YAO (CN)
DONG MI (CN)
XIONG WENJING (CN)
YANG YINGGANG (CN)
LIU JUNBO (CN)
CHANG QING (CN)
YANG JIAN (CN)
SU MEI (CN)
SUN YAO (CN)
DONG MI (CN)
XIONG WENJING (CN)
Application Number:
PCT/CN2020/088926
Publication Date:
March 18, 2021
Filing Date:
May 07, 2020
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
F03D17/00; F03D7/00
Foreign References:
| CN110552850A | 2019-12-10 | |||
| CN110145436A | 2019-08-20 | |||
| CN110030148A | 2019-07-19 | |||
| CN109185054A | 2019-01-11 | |||
| CN108979957A | 2018-12-11 | |||
| CN102748217A | 2012-10-24 | |||
| US20140308126A1 | 2014-10-16 |
Attorney, Agent or Firm:
CHANGSHA XUAN RONG PATENT AGENCY CO., LTD. (CN)
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