Bifurcation analysis of voltage stability and study on power loss for wind power system

2009 ◽  
Author(s):  
Youjie Ma ◽  
Hulong Wen ◽  
Xuesong Zhou ◽  
Ji Li ◽  
Haishan Yang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Bifurcation Analysis ◽  
Power Loss ◽  
Voltage Stability ◽  
Wind Power System

scholarly journals Hybrid PSO-Optimized ANFIS-Based Model to Improve Dynamic Voltage Stability

2019 ◽  
Vol 9 (4) ◽  
pp. 4384-4388 ◽  
Author(s):  
D. N. Truong ◽  
V. T. Bui
Keyword(s):  
Power System ◽  
Wind Power ◽  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Voltage Response ◽  
Inference System ◽  
Dynamic Voltage ◽  
Dynamic Voltage Stability ◽  
Wind Power System

The objective of this paper is to perform a hybrid design for an Adaptive Neuro-Fuzzy Inference System (ANFIS) optimized by Particle Swarm Optimization (PSO) to improve the dynamic voltage stability of a grid-connected wind power system. An onshore 99.2MW wind farm using Doubly Fed Induction Generator (DFIG) is studied. To compensate the reactive power absorbed from the power grid of the wind farm, a Static VAR Compensator (SVC) is proposed. To demonstrate the performance of the proposed hybrid PSO–ANFIS controller, simulations of the voltage response in time-domain are performed in Matlab to evaluate the effectiveness of the designed controller. From the results, it can be concluded that the proposed hybrid PSO-optimized ANFIS-based model can be applied to enhance the dynamic voltage stability of the studied grid-connected wind power system.

Multi-Parameter Static Bifurcation Analysis of Wind Power System Based on Dynamic Model

2011 ◽  
Vol 4 (4) ◽  
pp. 1792-1795
Author(s):  
Youjie Ma ◽  
Hulong Wen ◽  
Xuesong Zhou ◽  
Ji Li ◽  
Haishan Yang ◽  
...  
Keyword(s):  
Power System ◽  
Dynamic Model ◽  
Wind Power ◽  
Bifurcation Analysis ◽  
Wind Power System

Tracking and Analysis of Two-Dimensional Saddle Node Bifurcation Boundary in Wind Power System with Reactive Power Compensation of STATCOM

2011 ◽  
Vol 317-319 ◽  
pp. 1778-1782 ◽  
Author(s):  
You Jie Ma ◽  
Jin Hua Liu ◽  
Xue Song Zhou ◽  
Ji Li
Keyword(s):  
Power System ◽  
Wind Power ◽  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Two Dimensional ◽  
Saddle Node Bifurcation ◽  
Wind Power System

As a new dynamic reactive compensation devices, static synchronous compensator (STATCOM) has better reactive power compensation effect such as small in size, capacity, continuous adjusting, fast response and economic performance compared with SVC. It is suitable to be used in large-scale wind farm to improve the voltage stability of wind power system. With the help of ideas and methods in conventional electric power system to calculate the two-dimensional parameter bifurcation boundary, the node voltage two-dimensional saddle-node bifurcation boundary of wind power system was calculated by using wind farm active power inject(Pin ),STATCOM parameters KMdc and Vrefdc as bifurcation control parameters. And on the basis of this analysis, the laws of wind power system voltage stability affected by active power and STATCOM parameters were obtained.

The Research of Voltage Stability in Wind Power System

2013 ◽  
Vol 316-317 ◽  
pp. 64-67
Author(s):  
You Jie Ma ◽  
Yu Zhang ◽  
Xue Song Zhou
Keyword(s):  
Power Systems ◽  
Power System ◽  
Wind Power ◽  
Voltage Stability ◽  
Wind Farms ◽  
Research Problem ◽  
Research Trend ◽  
Dynamic Voltage ◽  
Wind Power System ◽  
The Difference

Wind power is a kind of special electric power, because of the volatility of the wind, making voltage stability has become an important research problem wind power system must facing with. Therefore, according to the relevant current research status and the main existent problems of wind power system, expounding the difference of voltage stability between the conventional energy sources and the wind power, and the influence of voltage stability to the power system which caused by wind power system. This paper mainly from the definition and the classification to introduce the voltage stability; from the research contents and methods of static and dynamic voltage stability to analyze power systems which contains wind farms, especially emphasizing the necessity of the bifurcation theory used in power system contains wind power. Finally points out that the research trend of analysis and improvement in this area.

scholarly journals An Energy Loss Calculating Method for Wind Power System Based on the Shape Factor

2018 ◽  
Vol 160 ◽  
pp. 03007
Author(s):  
Bo Ruan ◽  
Junjie Qian ◽  
Dahai You ◽  
Tingting Hou ◽  
Xi Chen ◽  
...  
Keyword(s):  
Power System ◽  
Energy Loss ◽  
Wind Power ◽  
Shape Factor ◽  
Power Loss ◽  
Large Scale ◽  
Calculating Method ◽  
Loss Calculation ◽  
New Energy ◽  
Wind Power System

The large-scale access of the new energy makes various changes to the power system characteristics. For example, the acute volatility of the new energy such as wind power and photovoltaic energy makes the power-loss-calculation for the system more complex. The traditional typical daily method is inaccurate when used in new energy system because of its overlook of the generator output volatility. This paper proposes a new power-loss-calculation method for wind power system which based on the shape factor and gain a more accurate result. On the basis of this new calculating method, finds that the shape factor of the wind power plant for an hour period usually falls in a certain range. Therefore, proposes to directly use the expectation of shape factor in whole year to compute the annual energy loss with at least two values and once power flow calculation. And the acceptable relative error proves its large engineering practicability.

Summarization on Stability of Wind Power Systems Based on Bifurcation Theory

2012 ◽  
Vol 182-183 ◽  
pp. 1469-1473
Author(s):  
Xue Song Zhou ◽  
Hua Xin Zhai ◽  
You Jie Ma
Keyword(s):  
Power Systems ◽  
Power System ◽  
Wind Power ◽  
Nonlinear Dynamic ◽  
Bifurcation Theory ◽  
Voltage Stability ◽  
Wind Farm ◽  
Nonlinear Dynamic System ◽  
Structure Stability ◽  
Wind Power System

With wind farm capacity continuously increasing, remarkable characteristics of wind power make nonlinear dynamic characteristics of wind power system more apparent than conventional power system. Domestic and international experience shows that the voltage instability is main forms of wind power system instability. The bifurcation theory is one of the most powerful tools in analysis of structure stability of nonlinear dynamic system. Therefore application of bifurcation theory not only reveals the voltage stability mechanism, but also has important theoretic value and practical value for the security analysis of the whole power system, especially for voltage stability of wind power system.

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