Main control dominant frequency modulation control method and system for wind turbine generator comprising energy storage unit

• Main Authors: HU HAO, WANG SHIJUN, YANG JING, KE YUDONG, XIE HUAJUN, DU WEI, CHEN BAOGANG
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

According to the master control dominant frequency modulation control method for the wind turbine generator comprising the energy storage unit, the power grid frequency is processed based on Kalman filtering, and then segmented frequency average value processing is performed on the filtered power grid frequency, so that the error of power grid frequency detection is reduced, and the frequency detection time is shortened; and before the wind power plant group controller issues the frequency modulation adjusting quantity, the unit master controller distributes the active power adjusting quantity for primary frequency modulation and inertia response based on the frequency detection result, and controls the unit energy storage unit to perform primary frequency modulation and inertia response, thereby improving the frequency modulation response time. Meanwhile, the invention further provides a wind turbine generator master control dominant frequency modulation control system comprising the energy storage unit base