A Long-Term Frequency Dynamic Simulation Method of Power System with the Wind Farm Based on Quasi-Steady State Simulation

2013 ◽  
Vol 385-386 ◽  
pp. 1011-1016
Author(s):  
Ying Yun Sun ◽  
Zhao Yu Jin ◽  
Tian Jiao Pu ◽  
Ting Yu ◽  
Wei Wang ◽  
...  
Keyword(s):  
Steady State ◽  
Power System ◽  
Wind Power ◽  
Wind Farm ◽  
Frequency Control ◽  
Simulation Method ◽  
Quasi Steady State ◽  
Term Frequency ◽  
The Impact

With the continuous improvement of wind power penetration, the impact of the random fluctuation characteristics of wind power on the frequency control of the power system is growing. Currently, researchers began to study the methods of wind farms participation in frequency control to reduce the frequency adjustment pressure of other power plants and increase the wind power penetration. However, the existing simulation software for the short and long term frequency control of the power system is not so good. So in order to analyze the impact of load fluctuations or wind farm power fluctuations on system frequency control, this paper propose a frequency fluctuation simulation method based on the quasi-steady-state method.

Applications of Lagrange-Quasi-Newton Method in Power System Steady-State Security Region

2012 ◽  
Vol 516-517 ◽  
pp. 1332-1336
Author(s):  
Zhong Cheng Li ◽  
Bu Han Zhang ◽  
Cheng Xiong Mao ◽  
Kui Wang
Keyword(s):  
Steady State ◽  
Power System ◽  
Wind Farm ◽  
System Security ◽  
Power System Security ◽  
Safe Operation ◽  
State Security ◽  
Security Region ◽  
The Impact ◽  
Quasi Newton

With the proportion of the installed capacity of wind farm in the grid increasing, the impact of wind farm on the power system security becomes obvious. The steady-state security analysis is one of the important measures to improve the power system security. Based on DC flow, considering the available transmission capability limit, the paper chooses the biggest security region volume as objective function with the upper and lower limits of security region multi-dimensional cuboid being as control variables, which transforms the maximum steady-state security region into nonlinear programming problem with linear constraints. This not only includes the biggest points for the safe operation, but also the order expansion problem doesn’t exist. Then Lagrange-Quasi-Newton is used to solve the equation, and the analysis of the example proves the feasibility of the proposed model and algorithm. Then we assume that wind speed distribution is weibull distribution, so we can assess the safe operation probability of wind power.

scholarly journals STUDY OF VOLTAGE COLLAPSE CHARACTIRISTICS IN GRID CONNECTED WIND POWER PLANT

2011 ◽  
Vol 14 (2) ◽  
pp. 80-93
Author(s):  
Chuong Trong Trinh
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Wind Farm ◽  
Reactive Power ◽  
Evaluation Criteria ◽  
Voltage Collapse ◽  
Small Signal Stability ◽  
Energy Conversion Systems ◽  
The Impact

The scale of wind power plants is increasing continuously in Vietnam. The installed capacity of the largest wind farm is about 50MW by the end of this year. Therefore, power system planners will need to study their impact onthe power system in more detail. Wind energy conversion systems are very different in nature from conventional generators. Therefore dynamic studies must be addressed in order to integrate wind power into the power system. The impact of this wind power on voltage distribution levels has been addressed in the literatures. The majority of this work deals with the determination of the maximum active and reactive power that is possible to be connected on a system load bus, until the voltage at that bus reaches the voltage collapse point. This article introduces the methods of research standards, evaluation criteria of stable electricity supply; it identifies the centers of loads and focuses on the branch is "weak" in small signal stability to improve operational efficiency, reliability in electricity power supply.

scholarly journals Hybrid Power System Frequency Control including Wind Farm using Battery Storage System

2020 ◽  
Vol 19 (1) ◽  
pp. 41-46
Author(s):  
Anannya Mondal ◽  
Md. Rifat Hazari ◽  
Mohammad Abdul Mannan ◽  
Junji Tamura
Keyword(s):  
Steady State ◽  
Power System ◽  
Wind Farm ◽  
Frequency Control ◽  
Storage System ◽  
Battery Storage ◽  
Steady State Condition ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Frequency Fluctuations

Fixed speed wind turbine-squirrel cage induction generator (FSWT-SCIG) based wind farm (WF) is increasing significantly. However, FSWT-SCIG have no frequency control capability, which creates a significant problem on power system steady-state stability. This paper represents a new operational strategy to control frequency of the entire power system including large-scale FSWT-SCIG based WF by using battery storage system (BSS). The proposed cascaded control of BSS is designed to provide effective amount of real power during steady-state period to damp frequency fluctuations. To evaluate the validity of the proposed system, simulation studies are executed on a reformed IEEE nine-bus power system with three synchronous generators (SGs) and SCIG-based WF along with BSS. The simulation results indicate that the proposed system can be an effective solution to reduce frequency fluctuations of the hybrid power system during steady-state condition.

The Impact of Large Scale Wind Power Integration on a Regional Power Grid - A Case Study

2014 ◽  
Vol 472 ◽  
pp. 219-225
Author(s):  
Hui Ren ◽  
Dan Xia Yang ◽  
David Watts ◽  
Xi Chen
Keyword(s):  
Power System ◽  
Wind Energy ◽  
Wind Power ◽  
Large Scale ◽  
Wind Farm ◽  
Reactive Power ◽  
Energy Integration ◽  
Wind Power Integration ◽  
Wind Energy Integration ◽  
The Impact

Renewable Energy especially wind energy integration has attained profound growth across the worldwide power system. Wind energy integration at large scale comes up with the challenge on voltages and reactive power management at power system level. The research work presented in this paper has analyzed the impact of wind energy on reactive power reserve with special reference to Hebei Southern Power System. The maximum wind power integration capacity is calculated, and the effect of increasing wind power integration on voltage profiles is studied. Possible controls from system sides and its effects on wind power integration are explored. Study shows that with the increase of the wind power integration capacity, the intermittency and variation will bring more serious problems to the system frequency regulation, reserve service and voltage control. These problems also become the limiting factors for further increase of large-scale wind power integration. In order to make a better use of wind power resources in Heibei province and maintain system safety at the same time, further research should be performed on exploring the reactive and active power regulation and control of the wind farm and the methods to decrease the variability of wind farm outputs.

scholarly journals Robust exponential load frequency control for time delay power system considering wind power

2020 ◽  
Vol 53 (2) ◽  
pp. 12536-12541
Author(s):  
Li Jin ◽  
Xingchen Shang-Guan ◽  
Yong He ◽  
Chuan-Ke Zhang ◽  
Lin Jiang ◽  
...  
Keyword(s):  
Time Delay ◽  
Power System ◽  
Wind Power ◽  
Frequency Control ◽  
Load Frequency Control ◽  
Load Frequency
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