Small-Signal Stability Analysis of Large-Scale Power Systems in Response to Variability of Offshore Wind Power Plants

Sajadi, Amirhossein; Zhao, Shutao; Clark, K.; Loparo, Kenneth A.

doi:10.1109/jsyst.2018.2885302

Cited by 14 publications

(6 citation statements)

References 13 publications

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“…Any variation in the operating conditions of the power system can be analyzed through eigenvalues of the system state matrix [88], [89]. The small signal stability studies of the power system variability due to the OWPP have been reported in literature by using different schemes like singular value decomposition based least squares analysis and Prony analysis [90], [91]. Such schemes help in understanding the effects of load change on grid side as well as wind speed inconsistency on small-signal angular stability.…”

Section: ) Small Signal Stabilitymentioning

confidence: 99%

“…Wind power variability as result of disturbance introduced in a 1000MW OWPPs considered [90] Modal state analysis Analyzed the effects of load change and dynamic interactions, on adding DFIG based WT in to the grid [91] State space stability analysis Perturbations due to intermittent wind have been modeled using state-matrix and a robust stability scheme proposed [92] Transient stability H∞ Linear parameter varying control is presented for increased transient stability of interconnected system having four AC-DC lines [96] Equal area criterion A real time corrected kinetic energy method is proposed, which quickly finds CCT with less comp: burden.…”

Section: ) Transient Stabilitymentioning

confidence: 99%

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Offshore Wind Farm-Grid Integration: A Review on Infrastructure, Challenges, and Grid Solutions

et al. 2021

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Recently, the penetration of renewable energy sources (RESs) into electrical power systems is witnessing a large attention due to their inexhaustibility, environmental benefits, storage capabilities, lower maintenance and stronger economy, etc. Among these RESs, offshore wind power plants (OWPP) are ones of the most widespread power plants that have emerged with regard to being competitive with other energy technologies. However, the application of power electronic converters (PECs), offshore transmission lines and large substation transformers result in considerable power quality (PQ) issues in grid connected OWPP. Moreover, due to the installation of filters for each OWPP, some other challenges such as voltage and frequency stability arise. In this regard, various customs power devices along with integration control methodologies have been implemented to deal with stated issues. Furthermore, for a smooth and reliable operation of the system, each country established various grid codes. Although various mitigation schemes and related standards for OWPP are documented separately, a comprehensive review covering these aspects has not yet addressed in the literature. The objective of this study is to compare and relate prior as well as latest developments on PQ and stability challenges and their solutions. Low voltage ride through (LVRT) schemes and associated grid codes prevalent for the interconnection of OWPP based power grid have been deliberated. In addition, various PQ issues and mitigation options such as FACTS based filters, DFIG based adaptive and conventional control algorithms, ESS based methods and LVRT requirements have been summarized and compared. Finally, recommendations and future trends for PQ improvement are highlighted at the end.INDEX TERMS Frequency control, Grid codes, harmonics, LVRT, offshore wind energy, power quality, stability, voltage control.

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Section: ) Small Signal Stabilitymentioning

confidence: 99%

Section: ) Transient Stabilitymentioning

confidence: 99%

Offshore Wind Farm-Grid Integration: A Review on Infrastructure, Challenges, and Grid Solutions

et al. 2021

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“…Random excitations are generally time-varying processes, and the characteristics of such electric excitations change rapidly and may even excite the dynamic process of power systems. Considerable effort has been exerted in investigating the impact of increased stochastic disturbance, such as wind generation penetration on small-signal stability, on power systems [6,[9][10][11][12]. Results showed that gridconnected wind generators affect power systems with small-signal stability, sometimes detrimentally [13,14].…”

Section: Introductionmentioning

confidence: 99%

A Novel Small Disturbance Stochastic Stability Analysis Method Based on Entropy

Zhong

Sun

Meng

et al. 2023

IEEJ Transactions Elec Engng

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Power system stability has become an increasing concern in renewable power integration because the active power generated by renewable energy varies randomly. Thus, we focus on random outside excitations in this study. Since the power obeys Non‐Gaussian distribution in most case, a novel small disturbance stochastic stability analysis method based on entropy is presented. First, the dynamic model of power system with random outside excitation is established by stochastic differential equation. Then, the values of mean and mean square stability are efficiently derived by transforming the stochastic differential equation into a deterministic mean or variance equation. For non‐Gaussian disturbance, entropy stability is presented by this transformation. At last, the numerical simulations are presented on a WSCC three‐generator nine‐bus power system with a wind farm © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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“…e modeling method does not consider the aerodynamic model, and the selection of PID parameters based on eigenvalues has limitations [13]. Small-signal stability analysis method from the perspective of voltage and frequency is discussed in [14,15]. In [14], the variability of wind power was considered as the interference source of the system and used Prony analysis and swing-based frequency response metric to study the influence of the small signal on the large offshore wind power system.…”

Section: Introductionmentioning

confidence: 99%

The Small-Signal Stability of Offshore Wind Power Transmission Inspired by Particle Swarm Optimization

Huang

Chen

et al. 2020

Complexity

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Voltage source converter-high-voltage direct current (VSC-HVDC) is the mainstream technology of the offshore wind power transmission, which has been rapidly developed in recent years. The small-signal stability problem is closely related to offshore wind power grid-connected safety, but the present study is relatively small. This paper established a mathematical model of the doubly fed induction generator (DFIG) integrated into the IEEE9 system via VSC-HVDC in detail, and small-signal stability analysis of offshore wind farm (OWF) grid connection is specially studied under different positions and capacities. By selecting two load nodes and two generator nodes in the system for experiments, the optimal location and capacity of offshore wind power connection are obtained by comparing the four schemes. In order to improve the weak damping of the power system, this paper presents a method to determine the parameters of the power system stabilizer (PSS) based on the particle swarm optimization (PSO) algorithm combined with different inertia weight functions. The optimal position of the controller connected to the grid is obtained from the analysis of modal control theory. The results show that, after joining the PSS control, the system damping ratio significantly increases. Finally, the proposed measures are verified by MATLAB/Simulink simulation. The results show that the system oscillation can be significantly reduced by adding PSS, and the small-signal stability of offshore wind power grid connection can be improved.

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Small-Signal Stability Analysis of Large-Scale Power Systems in Response to Variability of Offshore Wind Power Plants

Cited by 14 publications

References 13 publications

Offshore Wind Farm-Grid Integration: A Review on Infrastructure, Challenges, and Grid Solutions

Offshore Wind Farm-Grid Integration: A Review on Infrastructure, Challenges, and Grid Solutions

A Novel Small Disturbance Stochastic Stability Analysis Method Based on Entropy

The Small-Signal Stability of Offshore Wind Power Transmission Inspired by Particle Swarm Optimization

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