Results 261 to 270 of about 13,241 (300)
Some of the next articles are maybe not open access.
Fuzzy virtual impedance controller in human-vehicle interaction
2009 IEEE International Conference on Systems, Man and Cybernetics, 2009In the previous studies mechanical impedance has become well implement in the field of human-machine interaction. However, in human-vehicle interaction there is a variant environment when driving a vehicle, thus apart from interacting with human, impedance controller is needed to adapt to the variant environment. But for mechanical impedance as being a
Shenghao Zhou, Seiji Yasunobu
openaire +1 more source
A Novel Concept of Virtual Impedance for High Frequency Tri-Band Impedance Matching Networks
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018This brief introduces a novel concept of a virtual impedance for tri-band impedance matching. The proposed mathematical concept, when applied in practical realization, simplifies the design of tri-band matching to a great extent and also enhances the achievable frequency transformation ratios beyond 7.3.
Deepayan Banerjee +2 more
openaire +1 more source
Modified Adaptive Virtual Impedance Method to Compensate Mismatched Line Impedances in Microgrids
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019Under mismatched line impedance conditions, reactive power sharing performance of droop control tends to be barely satisfactory for the absence of sharing accuracy. Therefore, to realize accurate reactive power sharing of parallel-connected inverters in microgrids, a modified adaptive virtual impedance method is proposed in this paper.
Ronghui AN, Zeng LIU, Jinjun LIU
openaire +1 more source
Decentralized complex envelope controller for ASAC by virtual mechanical impedances
2014 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, 2014The problem of Active Structural Acoustic Control (ASAC) is to attenuate the radiated sound power by energy injection using structural actuators to modify deflection shapes. Collocated and dual actuator-sensor pairs allow the feedback problem to be formulated as the implementation of virtual mechanical impedances.
Michau, Marc +4 more
openaire +2 more sources
Virtual Impedance Shaping for low voltage Microgrids
2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020AC Microgrids, in presence of highly non-linear loads, require a tighter regulation of line voltage to maintain power quality. This article proposes an outer virtual impedance loop to shape the output voltage in such microgrids. In order to achieve this, a virtual impedance extracting and shaping filter is first proposed to extract and weigh selected ...
Sourav Patel +3 more
openaire +1 more source
Parameter Optimization of Virtual Impedance for Parallel Inverter
Advanced Materials Research, 2014This paper deals with parameter optimization of virtual impedance of parallel inverter. Conventional design methods determine parameters by observing the changes of amplitude-frequency and phase frequency curves of the equivalent impedance. However, those methods always neglect the dynamic performance of inverters in parallel.
Ping Wang, Liu Yang
openaire +1 more source
Inverter Control Based on Virtual Impedance Under Unbalanced Load
2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), 2020Three-phase four-leg inverter combined with appropriate control method has a good performance when facing the unbalanced load. The three-phase four-leg inverter can generate three-phase balanced voltage under unbalanced load and improve the capacity of the inverter. However, as a result of positive sequence, negative sequence and zero sequence currents
Kang Ge +3 more
openaire +1 more source
2022 IEEE International Conference on Electro Information Technology (eIT), 2022
Ramkrishna Mishan +3 more
openaire +1 more source
Ramkrishna Mishan +3 more
openaire +1 more source
Virtual mass of impedance system for free-flying target capture
2010 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2010This paper discusses the target motion around the contact in the satellite capture operation using a free-flying space robot. The contact force has the potential for pushing the target beyond the manipulator reach or making the target have a tumbling motion. An impedance control is useful to prevent the robot hand from pushing the target.
Hiroki Nakanishi +2 more
openaire +1 more source
Virtual Impedance Current Limiting for Inverters in Microgrids With Synchronous Generators
IEEE Transactions on Industry Applications, 2013This paper focuses on current limiting for voltage controlled inverters during overloads caused by poor transient load sharing between inverters and synchronous generators in islanded microgrids. The use of simple current reference saturation limiters can cause instability when the voltage regulator loses control after the current reference saturates ...
Andrew D. Paquette, Deepak M. Divan
openaire +1 more source