Voltage Stability Analysis of a Distributed Network Incorporating Wind Power Resource

2013 ◽  
pp. 1-11
Author(s):  
Denis Juma ◽  
Bessie Monchusi ◽  
Josiah Munda ◽  
Adisa Jimoh
Keyword(s):  
South Africa ◽  
Stability Analysis ◽  
Wind Speed ◽  
Voltage Stability ◽  
Wind Farm ◽  
Load Flow ◽  
Distributed Network ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

This paper investigates the impacts of a wind farm connected at Harterbeespoort substation in South Africa on voltage stability of the power network. The site wind speed was determined and analyzed for viability. A comparison is made between the use of Doubly-Fed Induction Generators and Self-excited Induction Generators driven by the wind turbines. The resulting P-V and Q-V curves from load flow studies are presented and analyzed. The models for this study were implemented in DigSILENT PowerFactory.

Voltage Stability Analysis of a Distributed Network Incorporating Wind Power Resource

2011 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Denis Juma ◽  
Bessie Monchusi ◽  
Josiah Munda ◽  
Adisa Jimoh
Keyword(s):  
South Africa ◽  
Stability Analysis ◽  
Voltage Stability ◽  
Wind Farm ◽  
Load Flow ◽  
Distributed Network ◽  
Power Network ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

This paper investigates the impacts of a wind farm connected at Harterbeespoort substation in South Africa on voltage stability of the power network. The site wind speed was determined and analyzed for viability. A comparison is made between the use of Doubly-Fed Induction Generators and Self-excited Induction Generators driven by the wind turbines. The resulting P-V and Q-V curves from load flow studies are presented and analyzed. The models for this study were implemented in DigSILENT PowerFactory.

Modelling Wind Farm with Doubly Fed Induction Generators Based on Characteristic Fusion

2014 ◽  
Vol 494-495 ◽  
pp. 1820-1824
Author(s):  
Dong Ning Wei ◽  
Xue Min Zhang ◽  
Jian Min Ye
Keyword(s):  
Wind Speed ◽  
Wind Farm ◽  
Measurement Data ◽  
Equivalent Model ◽  
Modelling Framework ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Wake Model ◽  
Basic Characteristics ◽  
Doubly Fed

In this paper, a novel modelling approach based on characteristic fusion is proposed and used to build a static equivalent model of wind farm. Firstly, the modelling framework based on characteristic fusion is given. Secondly, the basic characteristics of wind farm including characteristic of wind turbine generator (WTG), wind speed spatial distribution and characteristic of wind farm are analyzed according to the framework. Then detailed modelling process is provided utilizing SVR as a fusion tool. This approach combines the advantages of both mechanism and non-mechanism methods with both satisfactory fitting ability and generalization ability. It only requires the maximum and minimum value of wind speed among the wind farm, rather than accurate wake model as mechanism method nor massive measurement data as non-mechanism method. Numerical simulation indicates the effectiveness and robustness of the proposed method. When available data is reduced or includes bad measurement, the proposed method can still keep favorable performance.

Field tests and modelling of a wind farm with doubly fed induction generators

Wind Energy ◽  
2005 ◽  
Vol 8 (3) ◽  
pp. 333-344 ◽  
Author(s):  
Magne Meisingset ◽  
Trond M. Ohnstad ◽  
Kjetil Uhlen ◽  
Leif R. Strand
Keyword(s):  
Wind Farm ◽  
Field Tests ◽  
Induction Generators ◽  
Doubly Fed Induction Generators ◽  
Doubly Fed

Wind Farm Voltage Control Scheme to Improve Dynamic Voltage Stability

2013 ◽  
Vol 732-733 ◽  
pp. 745-751 ◽  
Author(s):  
Peng Guo ◽  
Wen Ying Liu ◽  
Wei Wang ◽  
Ning Bo Wang ◽  
Huai Sen Jia
Keyword(s):  
Voltage Stability ◽  
Wind Farm ◽  
Reactive Power ◽  
Control Mode ◽  
Synchronous Generators ◽  
Control Logic ◽  
Induction Generators ◽  
Fast Development ◽  
Dynamic Voltage ◽  
Doubly Fed

Dynamic voltage instability is one of the new problems with the fast development of wind farm clusters. This text is about the improvement of voltage stability of weak grid connected with wind turbine generators (WTGs). It focuses on the control strategy and mode of WTGs and dynamic reactive compensators during disturbance. Firstly, in order to propel WTGs outputting reactive power, the active control mode regarding both doubly fed induction generators (DFIGs) and permanent magnetic synchronous generators (PMSGs) is given. Secondly, the method of installing SVC at the terminal of part of WTGs is proposed. The selection of WTGs to install SVC is based on the sensitivity analysis. Thirdly, a coordinating method of various reactive sources is discussed. Finally, the comprehensive control logic under time series is listed. The simulation validates the methods above.

Sign in / Sign up

Export Citation Format

Share Document