Offshore wind plant current collection system topology optimization method capable of avoiding resonance area

• Main Authors: CHEN XIAOYUE, LI JINGYI, YE RONG, TANG YUCHEN, YUAN YUKUAN, YANG JIANJUN, SHI ZHAOHUI, WANG KE
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• 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 relates to an offshore wind plant current collection topology analysis method capable of avoiding a resonance area, and discloses a resonance risk assessment and current collection system topological structure optimization method for a whole offshore wind farm through an alternating current submarine cable sending-out system (a current collection system, an offshore wind turbine generator considering dynamic characteristics of a variable current control system, a power transformation system, a power transmission system and a grid-connected system). The method comprises the following steps: deducing an impedance model of the current collection system for an offshore wind power plant through the alternating current submarine cable sending-out system, and combining the impedance model with a deduced impedance model of an offshore wind turbine generator, a deduced impedance model of the power transformation system, a deduced impedance model of the power transmission system and a deduced impedance mo