Wind turbine group based on high-voltage direct-current power transmission and power control system thereof

• Main Authors: HU PENG, YANG PEIWEN, JIAO JIAN, XIA HUI, ZHANG YUECHAO, XIONG GUOZHUAN, ZHANG JINQIANG
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The utility model discloses a wind turbine group based on high-voltage direct-current power transmission and a power control system thereof, which belong to the field of wind turbines, the wind turbine group comprises N wind turbines which are connected to the same variable-frequency alternating-current bus and run in parallel, and the wind turbine group comprises a first boosting transformer connected with the variable-frequency alternating-current bus; a centralized machine side converter; a real-time wind speed acquisition module; the maximum wind energy output controller is connected withthe real-time wind speed acquisition module and is used for calculating the same rotating speed omega opt of the wind turbine group capable of obtaining the optimal wind energy output according to thereal-time wind speed; the centralized machine side controller is used for controlling the centralized machine side converter to realize variable-speed power generation of the N wind turbine generators according to the omega o