Virtual Synchronous Generator Control With Reliable Fault Ride-Through Ability: A Solution Based on Finite-Set Model Predictive Control

Jongudomkarn, Jonggrist; Liu, Jia; Ise, Toshifumi

doi:10.1109/jestpe.2019.2942943

Cited by 61 publications

(30 citation statements)

References 47 publications

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“…10, and the tuning of VSG parameters, are all explained in [27] and hence will be omitted in this work. In the previous research works of VSG applications for the VSIs [26], [27], [36], the output active power of the converter was drawn directly from the energy storage element in correspondence to the phase angle difference between the inverter output voltage and the grid voltage. Hence, the output power of such VSG control can be regulated by merely controlling the output voltage.…”

Section: A the Proposed Vsg Control For The Ibmc 1) Vsg Controlmentioning

confidence: 99%

“…g m is a constraint, which is included in the cost function to ensure that dc-link voltage never becomes negative. It can be defined with the equation (36).…”

Section: ) Cost Function Definitionmentioning

confidence: 99%

“…Over the last few years, finite control set model predictive control (FCS-MPC) has emerged as an attractive alternative for the control of power electronics applications since it offers several benefits including simple multivariable control, the possible inclusion of constraints, straightforward control law, and fast dynamic response [30]. As for DGs, a number of control solutions based on FCS-MPC appeared in the literature [31]- [36]. Among these, the multivariable FCS-MPC-based VSG for a voltage source inverter (VSI) proposed in [36] shows high compatibility between the FCS-MPC and VSG.…”

Section: Introductionmentioning

confidence: 99%

“…As for DGs, a number of control solutions based on FCS-MPC appeared in the literature [31]- [36]. Among these, the multivariable FCS-MPC-based VSG for a voltage source inverter (VSI) proposed in [36] shows high compatibility between the FCS-MPC and VSG. In addition to an integration of the inertia support feature, the FCS-MPC-based control scheme utilizes a simultaneous control of both voltage and current of the output LCL-filter, to provide a fault-ride-though ability, and to restrain the resonant energy oscillation between the inductances and the capacitances.…”

Section: Introductionmentioning

confidence: 99%

“…The mentioned oscillation will occur if either one of the filter voltage or the filter current is solely controlled. This performs an alternative method to damp the filter resonance without a dedicated active damping part in the control algorithm [36]- [39].…”

Section: Introductionmentioning

confidence: 99%

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Model Predictive Control for Indirect Boost Matrix Converter Based on Virtual Synchronous Generator

et al. 2020

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Indirect boost matrix converter is potentially a great alternative to a back-to-back converter for permanent magnet synchronous generators based distributed generation since it can achieve a voltage-boost functionality without utilizing a bulky DC-link capacitor. Despite the success of the indirect boost matrix converter topology, there still exist some issues in the relevant control structure that must be resolved appropriately. First, the existing controls are grid-following controls, which is incapable of islanded operation. Secondly, the exiting controls generate a highly distorted current waveform, which needs to be suppressed by a passive damping resistor. Moreover, without an energy storage element, the distributed generations have no short-time power reserve unit for providing an inertial power to support the utility. In order to solve these issues, a novel approach based on a modified virtual synchronous control and a finite control set model predictive control scheme is proposed in this paper. The former is adopted to ensure proper operations in both grid-connected and islanded modes and to emulate the virtual inertial response by drawing inertial power from the input source. The latter utilizes multi-controls of real-time variables to avoid complicated coupling between the input side and the output side controls and to grant the indirect boost matrix converter with the capability of providing active filter resonance damping. Comparative studies between the proposed control and its existing counterpart are conducted with several simulations in PSCAD/EMTDC software to demonstrate the superior performances of the proposed strategy. Finally, the proposed control is verified in a scale-down experiment testbed. INDEX TERMS AC-AC converters, distributed power generations, indirect matrix converter, power control, power system stability, predictive control, virtual synchronous generator.

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Section: A the Proposed Vsg Control For The Ibmc 1) Vsg Controlmentioning

confidence: 99%

“…g m is a constraint, which is included in the cost function to ensure that dc-link voltage never becomes negative. It can be defined with the equation (36).…”

Section: ) Cost Function Definitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Model Predictive Control for Indirect Boost Matrix Converter Based on Virtual Synchronous Generator

et al. 2020

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Enhanced control of voltage source converters considering virtual inertia theory

Shahnazian

Adabi

Pouresmaeil³

2021

Int Trans Electr Energ Syst

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This article presents an enhanced control strategy for voltage source converters (VSCs) based on virtual inertia concept. Considering the significant share of renewable-based generations, frequency stability is noted as one of the most significant challenges of modern low-inertia power systems. Therefore, as the first contribution of this article, dynamic equations of the converter are utilized in order to study its proficient active and reactive power compensation capabilities. Then, this effective power factor correction of the proposed VSC is improved by adding inertia emulation characteristics in order to provide a more synchronous generator (SG) like behavior, which is beneficial from the frequency stability point of view. In addition to that, the impacts of changes in the main control parameters such as inertia and damping on dynamic performance are analyzed using the root locus method. This applied eigenvalue analysis has then been used to support a proper selection of parameter values, which is considered as another novelty of this article. In this regard, the designed algorithm providing auto adjustment capability of controller parameters based on a desired frequency response characteristic can improve the dynamic frequency stability of the system. The functionality of the proposed controller is validated through state-space analysis and simulations with MATLAB/Simulink. The superior performance of the proposed algorithm demonstrated through simulation results confirms that the proposed control method can be considered as a simple yet effective solution for the challenges of a reduced inertia power system.

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Transient performance comparison of grid-forming converters with different FRT control strategies

Shen

Luo³

2022

Front. Energy

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Virtual Synchronous Generator Control With Reliable Fault Ride-Through Ability: A Solution Based on Finite-Set Model Predictive Control

Cited by 61 publications

References 47 publications

Model Predictive Control for Indirect Boost Matrix Converter Based on Virtual Synchronous Generator

Model Predictive Control for Indirect Boost Matrix Converter Based on Virtual Synchronous Generator

Enhanced control of voltage source converters considering virtual inertia theory

Transient performance comparison of grid-forming converters with different FRT control strategies

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