A method for obtaining an inertial time constant of a power system including an energy storage system

• Main Authors: WANG QI, GUO YUFENG, CHEN RUNXIN, ZHANG DONGRUI
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2018
• 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 a method for obtaining an inertia time constant of a power system including an energy storage system, which relates to the field of equivalent moment of inertia of a power system. The invention aims at solving the problem that the moment of inertia equivalent method of the energy storage system in the electric power system is lacking at present. The invention relates to amethod for obtaining inertia time constant of a power system including an energy storage system. Firstly, a model of each energy storage system in the power system is established, and an equivalent inertia time constant of each energy storage system is obtained according to the model of the energy storage system. Then the model of power system is established, and the total equivalent inertia timeconstant of power system is obtained according to the model of power system. Finally, the equivalent inertia time constant of the energy storage system model is equivalent to the equivalent inertia time constant of the power s