Small Signal Stability Analysis of Dispatchable Virtual Oscillator Controlled Inverters with Adaptive Virtual Inertia Control

The Modular Multilevel Converter High Voltage Direct Current Transmission (MMC-HVDC) technology is considered to be the most feasible choice for high-voltage and high-power transmission systems, and its flexibility and high controllability provide a new solution for renewable energy grid integration. The MMC topology contains a large number of capacitors, which enables it to provide a certain active inertia support for the connected AC system. Different from a synchronous machine, the active inertia control of an MMC can flexibly adjust a system’s inertia-supporting power by changing the control parameters. By introducing a variation of the Sigmoid function with amplitude-limiting capability, this paper proposes an adaptive active inertia control strategy for the MMC-HVDC system. The proposed scheme adjusts the inertia constant adaptively according to the frequency change rate of the AC system, which can better respond to the frequency recovery performance. Finally, the MMC-HVDC simulation model is established in PSCAD/EMTDC to verify the effectiveness of the proposed control strategy.

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Small Signal Stability Analysis of Dispatchable Virtual Oscillator Controlled Inverters with Adaptive Virtual Inertia Control

Cited by 3 publications

References 9 publications

Averaging-Value Modeling and Transient Simulation of Dispatchable Virtual Oscillator Converters in Wind Power/Hydrogen Integrated System

Averaging-Value Modeling and Transient Simulation of Dispatchable Virtual Oscillator Converters in Wind Power/Hydrogen Integrated System

A Power Decoupling Control Strategy for Virtual Oscillator Controlled Grid-Forming Inverters Based on Impedance and Voltage Compensation

Adaptive Active Inertia Control Strategy of MMC-HVDC Systems for Flexible Frequency Support

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