Adaptive Virtual Impedance Droop Control of Parallel Inverters for Islanded Microgrids [PDF]
SensorsThe droop control strategy, known for its communication-free nature, is widely adopted for the parallel operation of inverter units. However, in microgrids, mismatches in line impedances and various measurement inaccuracies often lead to imbalanced ...
Hongzhi Yang +7 more
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A Reactive Power-Voltage Control Strategy of an AC Microgrid Based on Adaptive Virtual Impedance [PDF]
Energies, 2019 As an effective carrier of distributed generation, a microgrid is an effective way to ensure that distributed power can be reasonably utilized. However, due to the property of line impedance and other factors in a microgrid, reactive power supplied by ...
Fang Guo, Josep M Guerrero, Liu Yao
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Adaptive Virtual Impedance Control of a Mobile Multi-Robot System [PDF]
Robotics, 2021 The capabilities of collaborative robotics have transcended the conventional abilities of decentralised robots as it provides benefits such as scalability, flexibility and robustness.
Duanne Engelbrecht +2 more
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Parallel inverters control strategy based on adaptive virtual impedance
Journal of Hebei University of Science and Technology, 2023 In the low-voltage microgrid, the connection lines between parallel inverters are different due to the different length and loss, and the active power of the parallel inverters cannot be evenly distributed under the conventional droop control.
Yonggang LI, Yepeng WANG, Yuxia JIANG
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Design and Convergence Analysis of an Improved Droop Controller With Adaptive Virtual Impedance [PDF]
IEEE Access, 2021 Microgrids are used to incorporate distributed generators (DGs) together so that DGs can be scheduled to satisfy the load demand. Usually droop controllers are adopted so that each DG shares the load equally.
Manman Tang +3 more
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Adaptive virtual impedance control strategy based on IWOA-fuzzy PID and its application to reactive power sharing in islanded microgrids [PDF]
Scientific ReportsAccurate reactive power sharing in islanded microgrids is often compromised by resistive line impedances and parameter mismatches, causing power coupling and uneven distribution.
Yongxin Hou
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Island microgrid power control system based on adaptive virtual impedance
Frontiers in Energy Research, 2023 When the microgrid is in the islanding operation mode, affected by the line impedance difference between the distributed power sources (DGs), the traditional droop control strategy will lead to the fact that the reactive power of the system cannot be ...
Hongsheng Su +2 more
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Decentralised control for reactive power sharing using adaptive virtual impedance
IET Generation, Transmission and Distribution, 2018 The droop control strategy has been widely used in the microgrid. Though the real power sharing is accurate, the performance of reactive power sharing is not good due to the lack of global information. A new control strategy that employs an adaptive virtual impedance is proposed to improve the reactive power sharing accuracy without communication.
Yalong Hu, Ji Xiang, Yonggang Peng
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Current limiting control method with adaptive virtual impedance for grid-forming STATCOM
Energy Reports, 2023 Current limiting is an important issue in the static synchronous compensator (STATCOM) with grid-forming (GFM) control. However, the conventional methods are difficult to deal with the application scenarios of different grid faults.
Zhichang Yang +2 more
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Varying rate adaptive hybrid position–impedance control for robot-assisted ultrasonic examination system [PDF]
Mechanical Sciences, 2022 Robot ultrasound has great potential for reducing the workload of a sonographer, improving the access to nursing care, producing more accurate imaging, and avoiding direct contact with patients.
Z. Xie, Z. Yan
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