Investigation of Wind Farm on Power System Voltage Stability Based on Bifurcation Theory

Zeng, Zhiyuan; Li, Xianqi; Zhou, Jianzhong; Zhang, Yongchuan

doi:10.1109/appeec.2009.4918450

Cited by 16 publications

(8 citation statements)

References 9 publications

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“…Accordingly, in the load flow studies, the DFIG is modeled as a PV-bus. 20 In this work, the DFIG is modeled as a PV-bus, for the static voltage analysis, because of its ability to maintain a constant voltage at the point of connection to the utility.…”

Section: Wind Farm Modelingmentioning

confidence: 99%

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Voltage stability analysis of grid-connected wind farms with FACTS: Static and dynamic analysis

Heetun

Aleem

Zobaa

2015

Energy and Policy Research

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Recently, analysis of some major blackouts and failures of power system shows that voltage instability problem has been one of the main reasons of these disturbances and network collapses. In this article, a systematic approach to voltage stability analysis using various techniques for the IEEE 14-bus case study is presented. Static analysis is used to analyze the voltage stability of the system under study, while the dynamic analysis is used to evaluate the performance of compensators. The static techniques used are power flow, V-P curve analysis, and Q-V modal analysis. In this study, Flexible Alternating Current Transmission system (FACTS) devices-namely, static synchronous compensators (STATCOMs) and static var compensators (SVCs)-are used as reactive power compensators, taking into account maintaining the violated voltage magnitudes of the weak buses within the acceptable limits defined in ANSI C84.1. Simulation results validate that both the STATCOMs and the SVCs can be effectively used to enhance the static voltage stability and increasing network loadability margin. Additionally, based on the dynamic analysis results, it has been shown that STATCOMs have superior performance, in dynamic voltage stability enhancement, compared to SVCs.

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Section: Wind Farm Modelingmentioning

confidence: 99%

“…Consequently, the system becomes more oscillatoryhence, stability may be lost by increasing the amplitude of the oscillation. 20…”

Section: Bifurcation Analysismentioning

confidence: 99%

Voltage stability analysis of grid-connected wind farms with FACTS: Static and dynamic analysis

Heetun

Aleem

Zobaa

2015

Energy and Policy Research

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“…Many studies have shown the importance of such detailed modeling in improving the reliability of simulation. Researchers have investigated the voltage stability in distribution networks integrating wind farms, using different load model representations. Khlifi has shown that voltage instability occurred only due to the presence of the induction motor load.…”

Section: Introductionmentioning

confidence: 99%

“…In Gu et al, the line current of the IEEE 39 bus system with exponential and ZIP models has a more serious negative impact on voltage stability than the other limitations taken into account. In Zheng et al, the authors have shown that power system stabilizers may remove the Hopf bifurcations (HBs) and improve the system stability with large‐scale variable‐speed wind turbines. In Linh et al, an efficient method has been presented for determining the maximum permissible PQ loadability of a distribution network for wind power generation.…”

Section: Introductionmentioning

confidence: 99%

Analysis and study of two‐dimensional parameter bifurcation of wind power farms and composite loads

Saidi

Slimene

Khlifi³

et al. 2019

Wind Energy

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This study focuses on the stability of power system based on codimension‐two bifurcation theory. In this paper, we investigate the impact of load modeling on permissible wind power generation margins in distribution networks. The study considers codimension‐two bifurcations of equilibria and limit cycles in wind power systems depending on varying two parameters simultaneously. The principle parameter is the wind power generation, and the other parameter depends on the different types of loads. The types of loads are ZIP, exponential recovery, dynamic induction loads, and composite load models. To study the effects of the induction motor loads, the proportion of the static component in the motor load is changed and assessed with respect to their mechanical loads. Wind generation margin boundaries are traced, and saddle‐node, Hopf, and limit‐induced bifurcation branches are obtained, delimiting the stable and unstable operating regions in the parameter space. The analysis presented in this paper can pave the way for determining methods for improving and monitoring these margins with consideration to the system parameters and load composition.

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“…Some researchers have previously studied this problem. In [3], PV curves are used to study the integration of wind generation with compensation devices such as SVC in order to determine the maximum loadability of the system. In [4], the authors performed a probabilistic voltage stability-constrained optimal power flow to improve the voltage stability margin and social welfare.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Voltage Stability Comparison of Thermal and Wind Power Generation with Different Static and Dynamic Load Models

Acevedo¹,

Bothia-Vargas²,

Candelo³

2018

IJECE

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This paper presents a static and dynamic voltage stability analysis of a power network with thermal and wind generation considering static and dynamic load models. The thermal plant was modeled as a synchronous machine and the wind farm as a variable speed induction generator based on a doubly-fed induction generator. The load considered the ZIP, exponential recovery, induction motor, and frequency-dependent load models. The bifurcation points were found by continuation power flow and sensitivity analyses. In addition, dynamic voltage stability assessments were performed considering changes in the moment of inertia and the frequency parameters. All simulations were carried out in a 4-bus power system and using the power system analysis toolbox (PSAT) and MATLAB script code. The results show that the thermal generator had difficulties to maintain stability under dynamic load variations and frequency changes, the wind generator had difficulties to maintain voltage for the load with induction motors, and both generators had difficulties when the moment of inertia is increased.

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Investigation of Wind Farm on Power System Voltage Stability Based on Bifurcation Theory

Cited by 16 publications

References 9 publications

Voltage stability analysis of grid-connected wind farms with FACTS: Static and dynamic analysis

Voltage stability analysis of grid-connected wind farms with FACTS: Static and dynamic analysis

Analysis and study of two‐dimensional parameter bifurcation of wind power farms and composite loads

Dynamic Voltage Stability Comparison of Thermal and Wind Power Generation with Different Static and Dynamic Load Models

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