A coordinated voltage control strategy for a Doubly-Fed Induction Generator (DFIG) wind farm system

2015 ◽  
pp. 65-68
Keyword(s):  
Control Strategy ◽  
Wind Farm ◽  
Voltage Control ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Voltage Control Strategy ◽  
Doubly Fed ◽  
Farm System

scholarly journals Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7685
Author(s):  
Xiangwu Yan ◽  
Wenfei Chang ◽  
Sen Cui ◽  
Aazim Rassol ◽  
Jiaoxin Jia ◽  
...  
Keyword(s):  
Power System ◽  
Wind Power ◽  
Control Strategy ◽  
Wind Farm ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Synchronous Oscillation ◽  
Wind Power System ◽  
Doubly Fed ◽  
Grid Side

A large-scale power system breakdown in the United Kingdom caused blackouts in several important cities, losing about 3.2 percent of the load and affecting nearly 1 million power users on 9 August 2019. On the basis of the accident investigation report provided by the UK National Grid, the specific reasons for the sub-synchronous oscillation of Hornsea wind farm were analyzed. The Hornsea wind power system model was established by MATLAB simulation software to reproduce the accident. To solve this problem, based on the positive and negative sequence decomposition, the control strategy of grid-side converter of doubly-fed induction generator is improved to control the positive sequence voltage of the generator terminal, which can quickly recover the voltage by compensating the reactive power at the grid side. Consequently, the influence of the fault is weakened on the Hornsea wind farm system, and the sub-synchronous oscillation of the system is suppressed. The simulation results verify the effectiveness of the proposed control strategy in suppressing the sub-synchronous oscillation of weak AC wind power system after being applied to doubly-fed induction generator, which serves as a reference for studying similar problems of offshore wind power.

scholarly journals Optimization Control Strategy for Large Doubly-Fed Induction Generator Wind Farm Based on Grouped Wind Turbine

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4848
Author(s):  
Shijia Zhou ◽  
Fei Rong ◽  
Xiaojie Ning
Keyword(s):  
Control Strategy ◽  
Power Output ◽  
Wind Farm ◽  
Reactive Power ◽  
Optimization Problems ◽  
Active Power ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Optimization Control ◽  
Doubly Fed

This paper proposes a grouped, reactive power optimization control strategy to maximize the active power output of a doubly-fed induction generator (DFIG) based on a large wind farm (WF). Optimization problems are formulated based on established grouped loss models and the reactive power limits of the wind turbines (WTs). The WTs in the WF are grouped to relieve computational burden. The particle swarm optimization (PSO) algorithm is applied to optimize the distribution of reactive power among groups, and a proportional control strategy is used to distribute the reactive power requirements in each group. Furthermore, the proposed control strategy optimizes the reactive power distribution between the stator and the grid side converter (GSC) in each WT. The proposed control strategy greatly reduces the number of variables for optimization, and increases the calculation speed of the algorithm. Thus, the control strategy can not only increase the active power output of the WF but also enable the WF to track the reactive power dispatching instruction of the power grid. A simulation of the DFIG WF is given to verify the effectiveness of the proposed control strategy at different wind speeds and reactive power references.

Study on Stator-Voltage Decoupling Control Strategy for DFIG-Based Wind Power Turbines

2013 ◽  
Vol 805-806 ◽  
pp. 370-374
Author(s):  
Shu Ying Yang ◽  
Liu Wei Chen ◽  
Deng Yue Sun
Keyword(s):  
Simulation Model ◽  
Wind Power ◽  
Control Strategy ◽  
Mathematic Model ◽  
Decoupling Control ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Voltage Control Strategy ◽  
Model Based ◽  
Doubly Fed

The performance of doubly fed induction generator (DFIG) based wind turbines supplying local isolated load is manly up to the stator-voltage control strategy. Compared with conventional steady mathematic model based one, a dynamic mathematic model based stator-voltage decoupling control strategy was proposed in the paper, by which the accuracy of stator voltage was improved greatly. In this paper, the dynamic mathematic model of stator voltage and then the proposed stator-voltage decoupling control were deduced, based on which the corresponding decoupling control strategy was designed and analyzed. At last, the stator-voltage decoupling control strategy for DFIG based wind turbine supplying local isolated load was achieved. To validate the design and analysis, the simulation model was built in the Matlab/Simulink environment, and some important results were reported in the paper.

Reactive Power and Voltage Coordinated Control Research of Wind Farm Adopting Doubly-Fed Induction Generators

2014 ◽  
Vol 1003 ◽  
pp. 152-155
Author(s):  
Wei Zhao ◽  
Xiao Rong Zhu ◽  
Jian Chao Zhang
Keyword(s):  
Control Strategy ◽  
Wind Farm ◽  
Reactive Power ◽  
Voltage Control ◽  
Pso Algorithm ◽  
Voltage Control Strategy ◽  
Induction Generators ◽  
Internal Loss ◽  
Voltage Deviation ◽  
Doubly Fed

For the wind power grid voltage control problem, this paper proposed a reactive power and voltage control strategy by coordinate the wind farm reactive power source. Considering wind internal loss and the machine voltage deviation, established a optimal control model and a objective function, using the improved particle swarm optimization (PSO) algorithm to solve the function, the control strategy can reduce the wind internal loss and stabilize the voltage of the machine on the basis of meet the requirements of PCC voltage. The example simulation proved the effectiveness and economy of the control strategy.

Effective Model Predictive Voltage Control for a Sensorless Doubly Fed Induction Generator

2021 ◽  
Vol 44 (1) ◽  
pp. 50-64
Author(s):  
Mahmoud A. Mossa ◽  
Ton Duc Do ◽  
Ameena Saad Al-Sumaiti ◽  
Nguyen Vu Quynh ◽  
Ahmed A. Zaki Diab
Keyword(s):  
Voltage Control ◽  
Effective Model ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Doubly Fed
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