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Variable Droop Voltage Control For Wind Farm
IEEE Transactions on Sustainable Energy, 2018Converters of variable speed wind turbines in a wind power plant may possess different levels of reactive power capacity under variable power generation of each WT due to wake effects. This letter proposes a variable droop gain control scheme that seeks to mitigate voltage fluctuations at point of common coupling (PCC) by fully utilizing the voltage ...
Yujun Li +3 more
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Voltage control method using modified voltage droop control in LV distribution system
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009This paper proposes a reliable and effective voltage control method using modified voltage droop control in low voltage (LV) distribution system when serious voltage problem occurs. The proposed method changes the droop control mode from conventional droop control to modified droop control and vice versa. It determines mode change condition to maintain
Jae-Jin Seo +3 more
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Average voltage regulation in droop-controlled MTDC grids
2019 IEEE Electrical Power and Energy Conference (EPEC), 2019Proper voltage regulation is vital for the operation of the Multi-Terminal High Voltage Direct Current (MTDC) systems as the former parameter is a direct indicator of the power balance in such grids. This paper investigates the issues with the control of the MTDC voltage when the average voltage regulation approach is used.
Aram Kirakosyan +3 more
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Locally-determined Voltage Droop Control for Distribution Systems
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2018Distributed energy resources have the potential to mitigate both undervoltage and overvoltage problems in distribution system through their reactive power capability. The most practical way to implement the voltage control is through a local droop control which requires no communication with the neigbouring buses or a centralised control centre ...
Oktoviano Gandhi +3 more
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Bus Voltage Deviation Automatic Compensation Control Based On Droop Control
2018 IEEE 3rd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2018Droop control is an important control method in microgrids with distributed power supply. However, the traditional droop control does not consider the influence of line impedance between inverters, and will affect system stability and power sharing.
Qi Liu, Zhouxing Fu
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Comparison Between Voltage Droop and Voltage Margin Controllers for MTDC Systems
2018 IEEE International Conference on Automation/XXIII Congress of the Chilean Association of Automatic Control (ICA-ACCA), 2018This paper studies the problem of DC voltage control in a HVDC multi-terminal system based on voltage source converters. The control scheme used is based on inner current and outer loops. External loops define or modify the power reference in each converter. Master- slave DC voltage, droop voltage and margin voltage controllers are described, and their
Fernando Torres +3 more
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Parameter Optimization of Voltage Droop Controller for Voltage Source Converters
2014Mankind is facing the twin challenges of sustainable energy supply and climate change due to the greenhouse gases emissions. Reducing the energy consumption has been given a significant role in addressing these problems. Although modern control technologies have been successfully applied in many engineering systems, PID (Proportional-Integral ...
Yongling Wu +3 more
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Improved droop control based voltage compensation and variable droop coefficient in DC microgrids
2016 UKACC 11th International Conference on Control (CONTROL), 2016This paper focuses on the circulating current between parallel dc-dc converters of dc microgrids, and the impacts of droop coefficient on load sharing and bus voltage are analyzed. The form of variable droop coefficient and dynamic voltage compensation method is proposed based on the analysis results to adapt to various situations and steady bus ...
Chengcheng Li +4 more
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Distributed MPC-Based Secondary Voltage Control Scheme for Autonomous Droop-Controlled Microgrids
IEEE Transactions on Sustainable Energy, 2017In this study, we propose a novel distributed secondary control scheme for both voltage and frequency in autonomous microgrids. By incorporating predictive mechanisms into distributed generations, the secondary voltage control is converted to a tracker consensus problem of distributed model predictive control, with the synchronous convergence procedure
Guannan Lou +4 more
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IEEE Transactions on Power Systems, 2015
Converter control is an important aspect of voltage-source-converter high-voltage dc (VSC-HVDC) based multi-terminal dc grids. Variants of power drooped against dc voltage control have previously been proposed for this purpose. However, there is at this time no clear methodology available on how to select the size of the droop constants for ...
Bertil Berggren +2 more
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Converter control is an important aspect of voltage-source-converter high-voltage dc (VSC-HVDC) based multi-terminal dc grids. Variants of power drooped against dc voltage control have previously been proposed for this purpose. However, there is at this time no clear methodology available on how to select the size of the droop constants for ...
Bertil Berggren +2 more
openaire +1 more source