Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Kumar, Ajit

doi:10.1109/tpwrs.2015.2460260

Cited by 78 publications

(10 citation statements)

References 21 publications

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“…A single-machine non-stiff bus (SMNB) is a model that considers changes in the magnitude and phase of the connected power system voltage and is used to make up for the shortcomings of a conventional K-constant model [16,17]. Therefore, the use of the SMNB model (see Figure 6) could consider the effects of the weak system in parameters of the µPSS, so PSO is performed with the model.…”

Section: Tuning the Parameters Of The Pss For Verificationsmentioning

confidence: 99%

“…In [16], Gurrala et al develop a method of designing a fixedparameter decentralized PSS for interconnected multi-machine power systems. In [17], an advanced method of [16] for designing PSS parameters is suggested by proposing a synthesized equivalent bus using local measurements available at the power station. The advantage of the method following the tuning guide is that it is easy to find the general parameter.…”

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confidence: 99%

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A Novel Structure of a Power System Stabilizer for Microgrids

Kim

Park

2021

Energies

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This paper proposes a novel structure of a power system stabilizer (PSS) to improve the stability of synchronous generators (SGs) in microgrids. Microgrids are relatively vulnerable in terms of stability due to their small size and low inertia. The rotational inertia and voltage support of SGs are highly suitable for getting over the vulnerabilities of microgrids, but there exist weaknesses in low-frequency oscillations (LFOs) and limitations of synchronization due to electromagnetic characteristics. Therefore, we study how to accommodate the features of microgrids in the PSS of SGs and further enhance present advantages. The PSS proposed in this paper not only damps out LFOs by conventional lead-lag compensation but also provides additional damping torque according to the magnitude of the perturbation using a synchronous impedance characteristic (SIC). The proposed Lyapunov energy-function-based control strategy can also increase the synchronizing power of the SG to improve transient stability. For performance verification, we use parameters obtained by the particle swarm optimization (PSO) algorithm to compare the existing PSS with the proposed one and analyze them. The effect of the proposed micro-power system stabilizer (µPSS) is analyzed through frequency response analysis, and finally, small-signal stability analysis and the performance of transient stability are verified by time-domain simulation (TDS) on MATLAB/Simulink.

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Section: Tuning the Parameters Of The Pss For Verificationsmentioning

confidence: 99%

mentioning

confidence: 99%

A Novel Structure of a Power System Stabilizer for Microgrids

Kim

Park

2021

Energies

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“…Normally, the frequency of electromechanical oscillations is ranging from 0.1 to 2.0 Hz [41]. Therefore, the dynamics of STATCOM's current control, i.e., 1 τs+1 , can be approximated by a unity gain as τ is much smaller than the oscillation frequency.…”

Section: Optimal Placement Of Statcom With Besmentioning

confidence: 99%

Analysis, Control and Optimal Placement of Static Synchronous Compensator with/without Battery Energy Storage

Xiang

2019

Energies

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Static synchronous compensator (STATCOM) and battery energy storage (BES) have been increasingly employed in power systems for the reliable and economic operation of power transmission. However, the transient interaction between the electrical power of synchronous generator (SG) and the active power of STATCOM with/without BES is still misunderstood and treated incorrectly. This paper presents an analysis of this interaction and investigates the control and optimal placement of STATCOM with/without BES for the purpose of improving SG’s damping, and thus enhancing system’s oscillation damping performance. The results show that (1) the deviated electrical power of SG is not equal to the active power of STATCOM. Instead, it is related to STATCOM’s current, placement and SG’s electrical states, (2) with the increased damping as the index, the optimal location for STATCOM with BES is at the terminal of SG, while it is at the electrical mid-point of the transmission line for STATCOM without BES. Non-linear simulations and eigenvalue analysis are performed to validate the correctness of the above results.

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“…The multi-operating conditions and multi-machine damping coupling must be considered when a robust parameter tuning method for a PSS is designed. Many different algorithms have been proposed to optimize the parameters of multi-machine power system stabilizers in [25][26][27][28][29] researched by Abido. Tse, C.T.…”

Section: Introductionmentioning

confidence: 99%

Model of Power System Stabilizer Adapting to Multi-Operating Conditions of Local Power Grid and Parameter Tuning

Hu¹,

Ji²,

Jin

et al. 2018

Sustainability

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Abstract:The rapid development of the modern power grid has resulted in significant changes to the dynamic characteristics of regional power grids. Moreover, the operating conditions of power grids are increasingly complex, and uncertainty factors are on the rise, which makes it difficult for a conventional power system stabilizer (PSS) to provide enough damping for the power system. To solve the problem where the conventional model and parameter-tuning method of a PSS cannot adapt to the multi-operating conditions of the modern power system, a new emergency control model of PSS (E-PSS) that can adapt to the multi-operating conditions of the local power grid and a method of parameter tuning based on probabilistic eigenvalue are proposed in this paper. An emergency control channel is also installed on the PSS2B. The conventional channel is used to control the system under normal operating conditions, which ensures that the system meets the conditions of dynamic stability in 99% of operating conditions, and the emergency control is adopted immediately in extreme conditions. Through the process of parameter tuning, the adaptability of the PSS to multi-operating conditions and damping coupling are both considered. Finally, it is verified that the emergency control model of the PSS and the parameter tuning method are effective and robust by a series of simulations based on MATLAB and its Power system analysis toolbox (PSAT). The rapidity of the emergency control can guarantee its effectiveness.

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Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements

Cited by 78 publications

References 21 publications

A Novel Structure of a Power System Stabilizer for Microgrids

A Novel Structure of a Power System Stabilizer for Microgrids

Analysis, Control and Optimal Placement of Static Synchronous Compensator with/without Battery Energy Storage

Model of Power System Stabilizer Adapting to Multi-Operating Conditions of Local Power Grid and Parameter Tuning

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