Calculation of Probabilistic Available Transfer Capability in Wind Power Integrated System

2013 ◽  
Vol 448-453 ◽  
pp. 2524-2529
Author(s):  
Guo Qing Li ◽  
Fang Jing Zhang ◽  
Hou He Chen
Keyword(s):  
Wind Power ◽  
Interior Point Method ◽  
Sequential Monte Carlo ◽  
Wind Farms ◽  
Integrated System ◽  
Wind Generation ◽  
Available Transfer Capability ◽  
System Operation ◽  
Transfer Capability ◽  
Computing Method

As the number of wind generation facilities in the power system is fast increasing, the research on available transfer capability (ATC) calculation with wind farms has great significance to system operation. With consideration of the uncertainty of the wind powers output, this paper proposes a probability computing method to study the ATC in wind power integrated system. This computing method of ATC is evaluated on non-sequential Monte Carlo simulation, and the ATC of every system state in random sampling is calculated by interior point method. The result shows that the model and algorithm is correct and effective.

scholarly journals Impacts of Integration of Wind Farms on Power System Transient Stability

2018 ◽  
Vol 8 (8) ◽  
pp. 1289 ◽  
Author(s):  
Shiwei Xia ◽  
Qian Zhang ◽  
S.T. Hussain ◽  
Baodi Hong ◽  
Weiwei Zou
Keyword(s):  
Power Generation ◽  
Wind Speed ◽  
Power System ◽  
Wind Power ◽  
Transient Stability ◽  
Wind Farms ◽  
Wind Power Generation ◽  
Wind Generation ◽  
System Operation ◽  
Power System Operation

To compensate for the ever-growing energy gap, renewable resources have undergone fast expansions worldwide in recent years, but they also result in some challenges for power system operation such as the static security and transient stability issues. In particular, as wind power generation accounts for a large share of these renewable energy and reduces the inertia of a power network, the transient stability of power systems with high-level wind generation is decreased and has attracted wide attention recently. Effectively analyzing and evaluating the impact of wind generation on power transient stability is indispensable to improve power system operation security level. In this paper, a Doubly Fed Induction Generator with a two-lumped mass wind turbine model is presented firstly to analyze impacts of wind power generation on power system transient stability. Although the influence of wind power generation on transient stability has been comprehensively studied, many other key factors such as the locations of wind farms and the wind speed driving the wind turbine are also investigated in detail. Furthermore, how to improve the transient stability by installing capacitors is also demonstrated in the paper. The IEEE 14-bus system is used to conduct these investigations by using the Power System Analysis Tool, and the time domain simulation results show that: (1) By increasing the capacity of wind farms, the system instability increases; (2) The wind farm location and wind speed can affect power system transient stability; (3) Installing capacitors will effectively improve system transient stability.

Dynamic Analysis and Stability Improvement Concerning the Integration of Wind Farms Kurdistan Electric Network Case Study

2011 ◽  
pp. 198-219 ◽  
Author(s):  
Mohammad Saleh ◽  
Hassan Bevrani
Keyword(s):  
Wind Power ◽  
Dynamic Models ◽  
Wind Farms ◽  
Integrated System ◽  
Electric Network ◽  
Control Approach ◽  
Control Loops ◽  
And Performance ◽  
The Stability

This chapter presents an overview of key issues and technical challenges in a regional electric network, following the integration of a considerable amount of wind power. A brief survey on wind power system, the present status of wind energy worldwide, common dynamic models, and control loops for wind turbines are given. In this chapter, the Kurdistan electric network in the Northwest part of Iran is introduced as a case study system, and an analytical approach is conducted to evaluate the potential of wind power installation, overall capacity estimation, and economic issues, based on the practical data. Then, the impact of high penetration wind power on the system dynamic and performance for various wind turbine technologies is presented. The stability of integrated system is analyzed, and the need for revising of conventional controls and performance standards is emphasized. Finally, a STATCOM-based control approach is addressed to improve the system stability.

Probabilistic Interval Prediction of Wind Power

2015 ◽  
Vol 740 ◽  
pp. 429-432
Author(s):  
Mao Yang ◽  
Gang Du ◽  
Li Sun
Keyword(s):  
Wind Power ◽  
Prediction Error ◽  
Rapid Development ◽  
Wind Generation ◽  
Power Prediction ◽  
System Operation ◽  
Probabilistic Distribution ◽  
Wind Power Prediction ◽  
Predicted Values ◽  
Point Forecast

As wind power generation rapid development in china, wind power prediction is the key to the system operate safely. Given significant uncertainties involved in wind generation, probabilistic interval forecasting provides a unique solution to estimate and quantify the potential impacts and risks facing system operation with wind penetration beforehand. this paper based on the point forecast, calculate wind power prediction error, formulate the distribution of prediction error, you can get the historical probabilistic distribution of prediction error, use the distribution of error to build the risk assessment of wind power after prediction, give the fluctuate range of predicted values. Probabilistic interval forecasting can obtain the probably of power system operation safely and reliability assessment criterion.

scholarly journals Impact Evaluation of Wind Power Geographic Dispersion on Future Operating Reserve Needs

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2863 ◽  
Author(s):  
Fernando Manuel Carvalho da Silva Santos ◽  
Leonardo Elizeire Bremermann ◽  
Tadeu da Mata Medeiros Branco ◽  
Diego Issicaba ◽  
Mauro Augusto da Rosa
Keyword(s):  
Wind Power ◽  
Sequential Monte Carlo ◽  
Wind Farms ◽  
Test System ◽  
Distribution Functions ◽  
Large Country ◽  
Global Power ◽  
Generation Capacity ◽  
Wind Characteristics ◽  
Capacity Flexibility

This paper evaluates the potential of diverse wind power patterns to balance the global power output of wind farms using the concept of operating reserve assessment. To achieve this, operating reserve assessment models are utilized to evaluate bulk generation systems under several conditions of wind power geographic distribution. Different wind behavior patterns and wind power penetration levels are tested using a modified configuration of the Institute of Electrical and Electronics Engineers Reliability Test System 96 (IEEE RTS-96). The results highlight that on a large country scale system with different wind characteristics, the diversification of wind behavior might be conducive to a compensation of wind power fluctuations, which may significantly decrease the need for system operating reserves. This effect is verified using probability distribution functions of reserve needs estimated by sequential Monte Carlo simulations (SMCS), such that useful information regarding generation capacity flexibility is drawn from the evaluations.

Planning and Operation of Large Offshore Wind Farms in Areas with Limited Power Transfer Capacity

2012 ◽  
Vol 36 (1) ◽  
pp. 69-80 ◽  
Author(s):  
John Olav Giæver Tande ◽  
Magnus Korpås ◽  
Kjetil Uhlen
Keyword(s):  
Power System ◽  
Wind Power ◽  
Wind Farms ◽  
Power Installation ◽  
Offshore Wind ◽  
Rational Approach ◽  
System Operation ◽  
Offshore Wind Farms ◽  
Power System Operation ◽  
Wind Power Installation

At many locations with excellent wind conditions the wind farm development is hindered by grid issues. Conservative assumptions are often applied that unnecessarily limits the wind power installation. This paper shows that significantly more wind power can be allowed by taking proper account of the wind power characteristics and facilitating coordinated power system operation. A systematic approach is developed for assessing grid integration of wind farms subject to grid congestions. The method is applied to a case of connecting offshore wind farms to regional grid with hydro generation (380 MW) and loads (75–350 MW). The tie to the main grid is via a corridor with limited capacity (420 MW). With conservative assumptions (i.e. no changes in scheduled hydro generation or control of wind power output) the wind power installation is limited to 115 MW. The system operation is simulated on an hourly basis for multiple years taking into account the stochastic variations of wind speed and hydro inflow as well as the geographical distribution of wind farms. The simulation uses a control strategy for coordinated power system operation that maximises wind penetration. By using the developed methodology the wind power capacity can be increased from 115 MW to at least 600 MW with relatively little income reduction from energy sales compared to a case with unlimited grid capacity. It is concluded that coordinated operation allows for the integration of surprisingly large amounts of wind power. In order to realize the increase in transfer capability, it is essential to take account of the power system flexibility and the stochastic and dispersed nature of wind power. The presented methodology facilitates this and represents a rational approach for power system planning of wind farms.

Sign in / Sign up

Export Citation Format

Share Document