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.

Study of Influence on Power System Voltage Stability of Wind Farm Power Output Fluctuation

2013 ◽  
Vol 694-697 ◽  
pp. 846-849
Author(s):  
Jian Yuan Xu ◽  
Wei Fu Qi ◽  
Yun Teng
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Output ◽  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Simulation Analysis ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
Grid Integration

This paper mainly studies wind power fluctuations how to affect voltage stability after the wind power grid integration, and reactive power compensation equipment on improving effect. In certain parts of the wind farm, for example, firstly, analyzing the wind farm reactive power problems. Then introduce the reactive power compensation equipment that used in the wind farm. Finally, with PSCAD software, making a simulation analysis about the influence on the power grid voltage according to adopting the different reactive power compensation devices or not.

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.

Analysis Software of Power Quality and Power Regulation for Wind Farm Based on DEWETRON

2013 ◽  
Vol 380-384 ◽  
pp. 2990-2993
Author(s):  
Chun Guang Tian ◽  
Ye Yuan ◽  
Zheng Jun Bi ◽  
Li Xia Cai ◽  
Xiao Juan Han
Keyword(s):  
Experimental Data ◽  
Power System ◽  
Wind Power ◽  
Power Quality ◽  
Wind Farm ◽  
Reactive Power ◽  
Active Power ◽  
Stable Operation ◽  
Analysis Software ◽  
Power Regulation

t is a powerful guarantee for the safe and stable operation of the grid to detect and study its characteristics such as the active power, the reactive power, the flicker and the harmonic. Dewetron5000 system and its software can be used to collect and analyze the experimental data of power system without getting the corresponding conclusion quickly, directly and clearly. In view of the above questions, the software has been developed to test the power quality for wind farm into the grid, the collected data after being processed by the secondary can display the situations of power quality and power regulation clearly and fast. The software has a very important role on the development of the test standard and system for wind power grid.

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.

Research of the Wind Power’s Transient Stability

2012 ◽  
Vol 229-231 ◽  
pp. 1043-1046 ◽  
Author(s):  
Yuan Zhou ◽  
Zhi Jie Wang ◽  
San Ming Liu ◽  
Xia Sun
Keyword(s):  
Mathematical Model ◽  
Power System ◽  
Wind Power ◽  
Control Strategy ◽  
Transient Stability ◽  
Reactive Power ◽  
Active Power ◽  
Wind Power System

The purpose of this paper is to improve the transient stability of wind power system. This paper presents a new DFIG control strategy, The strategy achieve the decoupling of reactive power and active power. In order to improve the transient stability of wind power, here lead STATCOM into wind power system. Then put forward the STATCOM'S control strategy according it's mathematical model. The simulation result shows that, the proposed scheme can greatly improve the wind power system's transient stability.

Simulation Study on Dynamic Reactive Power Compensation of Grid-Connected Wind Farms

2013 ◽  
Vol 756-759 ◽  
pp. 4171-4174 ◽  
Author(s):  
Xiao Ming Wang ◽  
Xing Xing Mu
Keyword(s):  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Wind Farms ◽  
Reactive Power Compensation ◽  
Wind Speeds ◽  
Wind Generators ◽  
Reactive Compensation ◽  
Farm Model ◽  
Set Up

With the Asynchronous wind generators as research object, this paper analyzes the problems of the voltage stability and the generation mechanism of the reactive power compensation during the wind farms connected operation. For paralleling capacitor bank has shown obvious defects, therefore this paper employs dynamic reactive power compensation to improve reactive characteristics of grid-connected wind farms. With the influences of different wind disturbances and grid faults on wind farms, wind farm model is set up and dynamic reactive power compensation system and wind speeds are built in the Matlab/Simulink software, The simulation result shows that they can provide reactive power compensation to ensure the voltage stability of the wind farms. But STATCOM needs less reactive compensation capacity to make sure the voltage and active power approaching steady state before the faults more quickly, Therefore STATCOM is more suitable for wind farms connected dynamic reactive power compensation.

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