Results 211 to 220 of about 3,140 (255)
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Adaptive Control of Haptic Interaction with Impedance and Admittance Type Virtual Environments
2008 Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2008Adaptive nonlinear controllers have been proposed to improve the stability and transparency in haptic rendering. Through a separation of control and dynamic simulation, the proposed controllers can couple impedance-type haptic devices with impedance and admittance-type virtual environment simulators.
Amin Abdossalami, Shahin Sirouspour
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Adaptive Virtual Impedance Consensus Control for Reactive Power Sharing
2020 IEEE Kansas Power and Energy Conference (KPEC), 2020This paper presents a new control method to ensure effective reactive power sharing in islanded microgrids with multiple distributed generator units (DG units) under mismatched feeder line conditions. A detailed mathematical model of primary and secondary control levels of a hierarchical control are designed to ensure accurate active and reactive power
Ahmed S. Alsafran, Malcolm W. Daniels
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Accurate Reactive Power Sharing for Microgrid Using Distributed Adaptive Virtual Impedance
2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), 2020Distributed generators (DGs) are usually dispersed along with the microgrids, which may spread out in a wide area, the impedances of transmission lines between every two DGs may be different. Therefore, uneven distribution of reactive power among parallel DG inverters with fixed virtual impedance would be induced eventually, which not only results in ...
Shuaicheng Hou +3 more
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Virtual impedance adaptation in a load emulator device for laboratory PV inverter testbed
2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 2020The paper presents an adaptive virtual impedance for load emulator control to be used in an emulator-based laboratory testbed. The target platform aims to investigate the impact of nonlinear local loads on PV systems and local storage systems as solution for higher integration of PV systems into existing low-voltage networks.
Marwa Ben Saïd-Romdhane +1 more
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An enhanced power sharing strategy for islanded microgrids using adaptive virtual impedances
IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, 2015In this paper, an enhanced power sharing strategy employing adaptive virtual impedances for Q-ω and P-V droop-based islanded microgrids (MGs) is proposed. The proposed scheme improves the performance of dynamic response and system stability while accurate power sharing is obtained. The low-bandwidth communication is utilized to send the power commands.
Liaoyuan Lin +3 more
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Improving Reactive Power Sharing in Microgrids by Adaptive Virtual Impedance Approach
2020 IEEE/IAS 56th Industrial and Commercial Power Systems Technical Conference (I&CPS), 2020As a new emerging approach, Virtual Synchronous Generator (VSG) control for interfacing inverters in renewable energy-based microgrids has attracted significant research interest. However, VSG control cannot ensure proportional reactive power sharing among distributed generation (DG) units when unequal transmission line impedances are involved ...
Chowdhury Andalib-Bin-Karim +4 more
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A New Adaptive Virtual Impedance based Fault Current Limiter for Converters
2019 IEEE Energy Conversion Congress and Exposition (ECCE), 2019Fault current limiter (FCL) can be used to prevent converters from being damaged and miscoordination of the protective relays. FCL must be designed to have high efficiency, fast response, and low implementation cost. Accordingly, this paper proposes an adaptive virtual impedance (VI) based FCL for a four-wire system.
Beheshtaein, Siavash +3 more
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An Adaptive Virtual Impedance Adjustment Based on Average Consistency Algorithm
2022 IEEE/IAS Industrial and Commercial Power System Asia (I&CPS Asia), 2022Boyang Zhang, Hui Wang, Xiaotang Jin
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Machine Learning, Multi Agent and Cyber Physical Systems, 2023
Peng Zhao +3 more
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Peng Zhao +3 more
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An Adaptive Virtual Impedance Control for Reactive Power Sharing in Microgrids
2023 IEEE Energy Conversion Congress and Exposition (ECCE), 2023Junjie Xiao +3 more
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