Virtual synchronous machine grid-connected active power optimization method based on frequency feed-forward compensation

• Main Authors: SHI RONGLIANG, LAN CAIHUA, YU YANNAN, LU DONGPING, LAN YUJIE
• Format: Patent
• Language: Chinese; English
• Published: 11.04.2023
• 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 virtual synchronous machine grid-connected active power optimization method based on frequency feed-forward compensation, and the method comprises the steps: adding a frequency feed-forward compensation link on the basis of a conventional virtual synchronous machine grid-connected active power equivalent control block diagram; the transient damping of the virtual synchronous machine and the capability of suppressing grid-connected active dynamic oscillation can be improved, and the problem that the grid-connected active dynamic characteristic and the primary frequency modulation characteristic cannot be considered at the same time in the process of providing certain virtual inertia support for a power grid in the grid-connected operation of the traditional virtual synchronous machine can be solved; the method has the advantages that the primary frequency modulation characteristic is not influenced, the control parameter design is simple, the order of the control system is not increas