Active power grid harmonic resonance suppression method based on harmonic virtual resistance technology

• Main Authors: SHI HUAKAI, SUN XIANDA, LIU GUOHUI, ZHAO BO, AN JINHUI, WANG FEIYI, WAN LEI, YANG YONGFEI, WEI HONGSHI, LI HAISHENG, LIANG XIAOXU, GUO ZIYONG, LYU XIAOGUO, XI PENG, YANG YANG
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2021
• 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 grid harmonic resonance suppression method based on a harmonic virtual resistance technology. The method comprises the following steps of 1, firstly, adding an active harmonic suppression device based on a power electronic power device at a common connection point of a power grid, 2, analyzing and determining a harmonic equivalent impedance value required by harmonic resonance suppression according to the equivalent connection impedance parameter of the power system and the equivalent parameter of the shunt capacitor branch, and 3, according to a harmonic virtual resistance control method and a voltage source type power electronic converter control method, realizing effective control of harmonic equivalent impedance of the active power grid harmonic resonance suppression device based on the power electronic power device. By applying a harmonic virtual resistance control technology, effective control of equivalent harmonic impedance of the active power grid harmonic reson