VSC based STATCOM controller for damping multi-mode oscillations

Guang-yi, Cao; Zhang, Dong; Wang, Y.; Zhang, P.; Oh, Young-Suk

doi:10.1109/pes.2008.4596342

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…As a viable alternative to PSS, some LFO dampers based on the flexible alternating current transmission system (FACTS) have been proposed in the literature. For instance, the sliding mode controller and the robust linear quadratic regulator have been employed in a static synchronous compensator (STATCOM) [15] and in a thyristor controlled series compensator (TCSC) [16] to damp electromechanical modes. Other damping strategies for FACTS devices are reported in [17] and [18].…”

Section: Introductionmentioning

confidence: 99%

Multi-Rotor Virtual Machine for Grid-Forming Converter to Damp Sub-Synchronous Resonances

Lai¹,

Baltas²,

Rodríguez

2021

IEEE Access

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Grid-forming power converters (GFMC) have been widely adopted in power systems as an attractive solution against the challenges imposed by the ever-increasing penetration of renewables. Despite its versatility, GFMC is employed only to provide islanded operation, grid regulations, and synthetic inertia. To further extend the use of GFMC in enhancing power system stability, this paper proposes a multi-rotor virtual machine (MRVM) controller to attenuate sub-synchronous oscillations. Driven by the formulation of a virtual synchronous machine (VSM), the proposed MRVM implements a VSM-based GFMC with several virtual rotors whose electromechanical characteristics can be individually adjusted to target specific oscillatory modes in the system. In this work, the MRVM's working principle is described in detail and tuning guidelines are proposed to simplify the selection of control parameters by using frequency-domain techniques and the eigenvalue locus analyses. To validate the performance of the MRVM, an IEEE benchmark grid model is adopted namely, the three-machine-infinite-bus system. It is evident from the results that the MRVM (i) provides higher degrees of freedom when dealing with sub-synchronous oscillations, and (ii) outperforms conventional GFMC, especially in damping intra-area power oscillations.INDEX TERMS Frequency-selective damping, grid-forming power converter, power oscillation damping, sub-synchronous oscillation, virtual synchronous machine.

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Section: Introductionmentioning

confidence: 99%

Multi-Rotor Virtual Machine for Grid-Forming Converter to Damp Sub-Synchronous Resonances

Lai¹,

Baltas²,

Rodríguez

2021

IEEE Access

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“…STATIC synchronous compensator (STATCOM) has come to be used as a key device for improving stability in power systems world-wide. When used at distribution level it helps to mitigate issues related to power quality, while at EHV transmission level, the same has been used extensively for voltage control and improving oscillatory stability (POD) [1][2][3]. STATCOM is generally used for injection of reactive power for various objectives.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Oscillatory Stability in Wide Area Controlled Systems Using Power Injection

Prakash

Kumar

2020

Wireless Pers Commun

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This paper presents a novel method for determination of location and tuning of parameters of electronic static synchronous compensator (E-STATCOM) for oscillation control in Wide area monitored power systems. The effect of active and reactive power injection by E-STATCOM, on the damping performance of a two-area interconnected system has been studied and analyzed. Dynamic non-linear simulations of the test system with appropriate modeling were carried out for evaluation of performance of the proposed controller design, and to take forward the previous works done on wide area control of power systems. Novel attempt has been made for optimal selection of nodes for positioning E-STATCOMs in multi-machine power system, by considering the participation factor of angular variation of voltage vector in modal analysis. Many operating conditions have been considered for the proposed study under both normal states and contingencies. Results of the simulation indicate that the proposed method is highly effective in suppressing the low frequency oscillations of the targeted modes and performs better than the flexible alternating current transmission system devices without the support of energy storage. This method is also used for cloud application.

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“…The use of both single and multiple FACTS controllers for damping low-frequency power oscillations has been described in the literature [5] [6]. In these works, the design procedure involves the use of carefully tuned wash-out and lead-lag filter links to provide damping at a particular oscillation frequency.…”

Section: Introductionmentioning

confidence: 99%

Independent damping control of multimode low-frequency oscillations using shunt-connected FACTS devices in power system

Beza

Bongiorno

2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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One of the problems encountered in a power system and that impacts its stable operation is low-frequency electromechanical oscillations. Depending on the system configuration, its operating conditions and the nature of the disturbance, one or more oscillation modes can be excited in the system. This paper deals with the design and analysis of an independent damping controller for multiple oscillation modes using shunt-connected FACTS devices. This is achieved using a selective and adaptive estimation of the various oscillation modes from locally measured signals. The effectiveness of the proposed control method to provide independent damping for the various oscillation modes in the presence of system parameter uncertainties will be verified through small-signal analysis and simulation using both single and multiple compensators.

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VSC based STATCOM controller for damping multi-mode oscillations

Cited by 11 publications

References 13 publications

Multi-Rotor Virtual Machine for Grid-Forming Converter to Damp Sub-Synchronous Resonances

Multi-Rotor Virtual Machine for Grid-Forming Converter to Damp Sub-Synchronous Resonances

Improvement of Oscillatory Stability in Wide Area Controlled Systems Using Power Injection

Independent damping control of multimode low-frequency oscillations using shunt-connected FACTS devices in power system

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