Virtual synchronous generator control method and system for resisting power grid frequency disturbance

• Main Authors: TIAN XIAODONG, HU JINGCHUN, LIU JUN, LAN HAIWEN, WANG XIAN, YANG FAN, HU YUTING, CUI GONG, JIA HENGJIE, TAN ZIYUN, ZENG ZHI, CHEN WENWEN, LI JUNJIE, WENG CAIHONG, WU LAN, AO WEI, HONG HUANSEN
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• 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 discloses a virtual synchronous generator control method and system for resisting power grid frequency disturbance. The method comprises the steps that an instantaneous power calculation module determines an output value of active power of a virtual synchronous generator and an output value of reactive power of the virtual synchronous generator according to output voltage of the virtual synchronous generator and output current of the virtual synchronous generator; an active power output value of the virtual synchronous generator is processed by an improved feedback loop connected in parallel with a digital low-pass filter feedback module to generate a feedback signal, and the feedback signal is output to an active power control module; and the active power control module controls the active power output by the virtual synchronous generator according to the active power reference value of the virtual synchronous generator and the feedback signal. According to the invention, the digital low-pass f