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Adaptive Variable Synthetic Inertia from a Virtual Synchronous Machine Providing Ancillary Services for an AC MicroGrid

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Filipe Perez
  • Function : Author
  • PersonId : 1077234
Gilney Damm
Paulo Ribeiro
  • Function : Author
  • PersonId : 1077235

Abstract

The paper proposes an adaptive variable synthetic inertia strategy to provide frequency and voltage support (ancillary services) in an AC MicroGrid (weak grid) composed of diesel generators and loads. A DC MicroGrid is connected to the AC one by a Voltage Source Converter (VSC). The VSC converter is driven as a Virtual Synchronous Machine (VSM), where the control strategy follows a swing equation such the converter emulates a synchronous machine, including inertial support. A rigorous stability analysis is developed based on Lyapunov technique assuring proper stability conditions for an adaptive inertia designated, such that, frequency stability is improved and power oscillations are reduced. This strategy can be exploited in low inertia systems like MicroGrids or grids with high penetration of renewables. Simulation results illustrate the performance of the proposed control and the system's operation, where a comparison with droop control is presented.
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Dates and versions

hal-02939086 , version 1 (15-09-2020)

Identifiers

  • HAL Id : hal-02939086 , version 1

Cite

Filipe Perez, Gilney Damm, Françoise Lamnabhi-Lagarrigue, Paulo Ribeiro, Renato Monaro. Adaptive Variable Synthetic Inertia from a Virtual Synchronous Machine Providing Ancillary Services for an AC MicroGrid. 21st IFAC world congress, Jul 2020, Berlin, Germany. ⟨hal-02939086⟩
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