Interface positioning method suitable for electromechanical-electromagnetic transient hybrid simulation of large-scale AC/DC power grid

• Main Authors: ZHAO LE, FENG YUYAO, XIONG XUEJUN
• 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 interface positioning method suitable for electromechanical-electromagnetic transient hybrid simulation of a large-scale AC/DC power grid. The method comprises the following steps of: S1, determining an interface bus range based on a reactive power injection method; S2, performing resistance-frequency characteristic scanning on all buses in the interface bus range determined in the S1, and drawing a resistance-frequency characteristic diagram; and S3, analyzing the resistance-frequency characteristic diagram of each order of bus obtained in the S2, and determining an interface bus. According to the interface positioning method suitable for electromechanical-electromagnetic transient hybrid simulation of a large-scale AC-DC power grid, the problem that simulation is inaccurate due to the fact that interface positioning of electromechanical-electromagnetic transient hybrid simulation of a large-scale AC-DC power grid cannot be quantitatively described or only a converter bus of a conve