Optimal Design of Virtual Inertia and Damping Coefficients for Virtual Synchronous Machines

@article{AdemolaIdowu2018OptimalDO,
  title={Optimal Design of Virtual Inertia and Damping Coefficients for Virtual Synchronous Machines},
  author={Atinuke Ademola-Idowu and Baosen Zhang},
  journal={2018 IEEE Power \& Energy Society General Meeting (PESGM)},
  year={2018},
  pages={1-5}
}
Increased penetration of inverter-connected renewable energy sources (RES) in the power system has resulted in a decrease in available rotational inertia which serves as an immediate response to frequency deviation due to disturbances. The concept of virtual inertia has been proposed to combat this decrease by enabling the inverters to produce active power in response to a frequency deviation like a synchronous generator. In this paper, we present an algorithm to optimally design the inertia… 

Figures from this paper

Improving Dynamic Performance of Low-Inertia Systems Through Eigensensitivity Optimization

This paper presents a framework for performance-based allocation of virtual inertia and damping to the converter-interfaced generators in a low-inertia system through an iterative, eigensensitivity-based optimization algorithm that determines the optimal controller gains.

Frequency Stability Using MPC-Based Inverter Power Control in Low-Inertia Power Systems

This paper proposes a new strategy based on model predictive control to determine the optimal active-power set-point for inverters in the event of a disturbance in the system and demonstrates the proposed controller significantly outperforms an optimally tuned virtual synchronous machine on a standard 39-bus system under a number of scenarios.

Optimal Inverter-Based Resources Placement in Low-Inertia Power Systems

—An increase in the integration of Inverter Based Re- sources (IBRs) to the electric grid, will lead to a corresponding decrease in the amount of connected synchronous generators, resulting in a

MPC-Based Multi-Inverter Power Control in Low-Inertia Power Systems

In a bid to make the electric grid more sustainable, there is a need to increase the integration of renewable energy resources at various locations in the grid. This move will reduce the total amount

Virtual Inertia-Based Inverters for Mitigating Frequency Instability in Grid-Connected Renewable Energy System: A Review

This study paper presents a comprehensive review of virtual inertia (VI)-based inverters in modern power systems, providing extensive insight into the latest development, application, challenges, and prospect of VI application, which is crucial for the transition to low-carbon power system.

Optimal Allocation of Virtual Inertia and Droop Control for Renewable Energy in Stochastic Look-Ahead Power Dispatch

To stabilize the frequency of the renewable energy sources (RESs) dominated power system, frequency supports are required by RESs through virtual inertia emulation or droop control in the newly

Modelling and Initialization of a Virtual Synchronous Machine for Power System Fundamental Frequency Simulations

This papers aims to give a clear understanding of modeling and initialization of grid-forming converter control schemes for power system fundamental frequency dynamic simulations (root-mean-square or RMS simulations) by using an example of a virtual synchronous machine (VSM).

Dispatch of Virtual Inertia and Damping: Numerical Method with SDP and ADMM

An Optimization-based Method for Estimating Critical Inertia in Smart Grids

The novel concept of critical inertia is introduced, i.e. the minimum inertia needed at each network bus, in order to ensure the transient stability of the power system, and a methodology based on parametric identification for its assessment is described.

References

SHOWING 1-10 OF 18 REFERENCES

Power System Stabilization Using Virtual Synchronous Generator With Alternating Moment of Inertia

The virtual synchronous generator (VSG) is a control scheme applied to the inverter of a distributed generating unit to support power system stability by imitating the behavior of a synchronous

Virtual Inertia: Current Trends and Future Directions

The modern power system is progressing from a synchronous machine-based system towards an inverter-dominated system, with large-scale penetration of renewable energy sources (RESs) like wind and

Optimal Placement of Virtual Inertia in Power Grids

This paper considers a linear network-reduced power system model along with an $\mathscr {H}_2$ performance metric accounting for the network coherency and provides a set of closed-form global optimality results for particular problem instances as a computational approach resulting in locally optimal solutions.

On Placement of Synthetic Inertia with Explicit Time-Domain Constraints

Rotational inertia is stabilizing the frequency of electric power systems against small and large disturbances, but it is also the cause for oscillations between generators. As more and more

Grid Inertia and Frequency Control in Power Systems with High Penetration of Renewables

It is shown that by integrating renewables in the generation mix, the frequency support deteriorates, but through additional control, the frequencies can be improved and some recommendations for future research are given.

Wind turbines emulating inertia and supporting primary frequency control

The increasing penetration of variable-speed wind turbines in the electricity grid will result in a reduction of the number of connected conventional power plants. This will require changes in the

Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

This report presents a systematic approach to identifying metrics that are useful for operating and planning a reliable system with increased amounts of variable renewable generation which builds on existing industry practices for frequency control after unexpected loss of a large amount of generation.

Synchronverters: Inverters That Mimic Synchronous Generators

The idea of operating an inverter to mimic a synchronous generator (SG) is motivated and developed, and the inverters that are operated in this way are called synchronverters.