Active power adjusting method of wind power plant group collection system

• Main Authors: YANG ZHIGANG, WANG RUOYANG, CUI HUIJUN, LI PENGYUAN, MA SUOMING, WANG JINGRAN, SUN RONGFU, LIU XIAOMIN, SHI GUIRONG, CUI ZHENGPAI, WANG YULIN
• Format: Patent
• Language: English
• Published: 11.02.2015
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides an active power adjusting method of a wind power plant group collection system. The wind power plant group collection system comprises a plurality of delivering sections, wherein each delivering section comprises a plurality of wind power plants. The active power adjusting method comprises the following steps: step a: obtaining basic parameters of the wind power plant group collection system in a (t)th instruction cycle; step b: calculating according to the basic parameters and intervals of all the delivering sections, and adjusting a force output instruction value of a (t+1)th instruction cycle of each wind power plant; step c: sending the force output instruction values to all the wind power plants; step d: judging whether the (t)th instruction cycle is finished or not; if so, updating t to (t+1) and returning back to execute the step a to step d until the working cycle of the wind power plant group collection system is finished. According to the active power adjusting method of the wind power plant group collection system, the calculation and the adjustment can be carried out aiming at actual conditions of connecting the wind power plant group into different sections of a power grid so that wind power can be accepted as much as possible on the basis of controlling section tides, and the maximized utilization of a section transmission capacity is realized.