Virtual synchronous machine-controlled grid-connected power electronic converter as a ROCOF control device for power system applications

Kumaravel, S.; Thomas, Vinu; O’Donnell, Terence; Ashok, S.

doi:10.1007/s00202-019-00835-4

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…At present, a large number of studies have been carried out on the analysis of transients in distributions systems with DG units, the results of which show the impact of DG on all stability types. The DG units improve the damping of electromechanical oscillations, but, at the same time, their frequency increases [1], [9]. The amplitude of power system variables oscillations increases after a disturbance in the EPS, which becomes even greater in the case of DG units' disconnection from the grid [10].…”

Section: State-of-the-art In the Stability Studies Of Distribution Systems With Dgmentioning

confidence: 99%

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

et al. 2021

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One of the general trends in power industry is the penetration of distributed generation (DG) units. The ongoing transformation of electric power systems (EPS) due to this penetration leads to a significant change in the properties of power systems. The problem arises in the ensuring stability of distribution system with DG units and EPS as a whole, especially in the case of large disturbances. The main way of solving this problem is positive-sequence phasor time-domain simulation. However, the known simplifications and limitations are inevitably applied at such simulation. In this regard, the obtained simulation results need to be validated. This paper proposes an alternative approach for validation of processes calculations, based on the use of a benchmark tool instead of field data. The hybrid simulator is proposed to use as a benchmark tool, because such simulator allow to obtain comprehensive information about a single spectrum of wave, electromagnetic, electromechanical processes in power system in cases of different large disturbances. That makes possible to identify the impact of the applied simplifications and limitations in the positive-sequence simulation on the reliability of power system stability assessment in the case of large disturbances. The studies presented in this paper were carried out using the scheme of distribution system with DG units, which is part of a real EPS. The obtained results demonstrate the arising errors in stability calculations, the nature of their changing and causes of occurrence, as well as factors affecting them.

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Section: State-of-the-art In the Stability Studies Of Distribution Systems With Dgmentioning

confidence: 99%

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

et al. 2021

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“…On the other hand, large cycle oscillations are inter-area mode oscillations with low frequency between 0.1 and 0.7 Hz [10]. Today, an appropriate control optimization technique created specifically for PSS is used to dampen down power system oscillations [11][12][13][14][15]. A crucial aspect of controlling the dynamics of the power system is PSS coordination with the FACTS device.…”

Section: Introductionmentioning

confidence: 99%

Multimachine Stability Enhancement using Fuzzy- Logic based PSS tuning with Shunt FACTS Device

Pradeepa

Madhusudhan²,

V³

et al. 2023

IJEEI

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In Large power system network the dynamic behaviour of system is nonlinear in nature. Due to disturbance the system stability cannot be maintained, which leads to outage of power equipment. In order to restore the system parameter after perturbance, coordination control damping is essential. Coordination control damping can be achieved by using fuzzy based PSS and STATCOM in multimachine system for sever disturbance. Due to perturbance the system loss its synchronism and the system parameter deviate from the nominal value. With the effective damping control technique proposed in this article is to minimize the integral square error of speed deviation. Two area 4-Machine 11-bus test system considered and the simulation of proposed system is developed in Matlab/Simulink R2018a.

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A freely configurable structure of virtual synchronous generator for grid-forming converters

2023

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Virtual synchronous machine-controlled grid-connected power electronic converter as a ROCOF control device for power system applications

Cited by 7 publications

References 22 publications

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

Validation of Positive-Sequence Modeling of Large-Disturbance Stability in a Distribution Network With Distributed Generation Using the Hybrid Comprehensive Simulator

Multimachine Stability Enhancement using Fuzzy- Logic based PSS tuning with Shunt FACTS Device

A freely configurable structure of virtual synchronous generator for grid-forming converters

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