A fusion modeling method and device suitable for frequency modulation analysis of a multi-machine power system

• Main Authors: QIU DANHUA, CUI YANLIN, WAN JIE, DI PENGYU, DONG CHAO, ZHONG JIN
• Format: Patent
• Language: Chinese; English
• Published: 15.01.2019
• 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 fusion modeling method suitable for multi-machine power system frequency modulation analysis, The data of the method is collected from wind power generation in power system modeling and simulation system, Corresponding modules of hydropower, thermal power and air-cooled units, Input wind power separately, Regional Power System Models for Hydropower, Thermal Power and Air-cooled Units, the air-cool unit is calculated, thermal power unit, the active power (standard 1 value) emitted by the hydropower unit and the wind turbine unit is multiplied by their respective powershare coefficients alpha 1, alpha 2, alpha 3, alpha 4, and then summing, obtaining the standard 1 value of the power generation quantity of each unit in the power system, obtaining the deviation quantity of the power system frequency and the actual system frequency according to the rotor equation by using the obtained standard 1 value, and taking the feedback mode as the deviation quantity of thesystem frequency of the ne