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2016 Annual Conference on Information Science and Systems (CISS), 2016
We describe the key ideas behind our implementation of a distributed antenna array fully pre-synchronized for retrodirective transmission to an external receiver. In our implementation, a number of wireless transceivers in a network use a sequence of simple in-band wireless message exchanges to calibrate themselves so that these transceivers can obtain
Benjamin Peiffer +4 more
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We describe the key ideas behind our implementation of a distributed antenna array fully pre-synchronized for retrodirective transmission to an external receiver. In our implementation, a number of wireless transceivers in a network use a sequence of simple in-band wireless message exchanges to calibrate themselves so that these transceivers can obtain
Benjamin Peiffer +4 more
openaire +2 more sources
Combined Pre-Synchronization and Power Sharing Control for Microgrid Applications
2020 55th International Universities Power Engineering Conference (UPEC), 2020With the increased penetration of distributed generation in the power distribution systems, it becomes a requirement for microgrids to switch between islanding and grid-connected operation modes. When the line impedance of each micro-source in the microgrid is different, this will cause a mismatch in the output power of the micro-sources.
L Lei +3 more
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Convergence Property of Transmit Time Pre-Synchronization for Concurrent Cooperative Communication
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010This paper proposes a preamble detection-based cooperative transmit time pre-synchronization technique specially for Concurrent Cooperative Transmission (CCT). CCT enables a collection of power-constrained radios to transmit as a group and achieve a transmit range that is much greater than the range of a single device. In the absence of a GPS system or
Yong Jun Chang, Mary Ann Ingram
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Design of a Low Power Pre-synchronization ASIP for Multimode SDR Terminals
2007SDR enables cost-effective multi-mode terminals but still suffers from significant energy penalty when compared to dedicated hardware solutions. At system level, this energy bottleneck can be leveraged capitalizing on heterogeneous MPSOC platforms where specific engines are dedicated to classes of functions with similar computation characteristics and ...
Schuster, Thomas +6 more
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Research on Pre-Synchronization Control Strategy for Microgrid VSG Inverter
2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2019In the microgrid, the virtual synchronous generator (VSG) technology realizes the friendly access of the distributed power supply and improves the stability of the power system by simulating the operating mechanism of the synchronous generator (SG). However, the VSG inverter has a large impact current at the moment when it is switching from off-grid to
Mengxiang Zhang +5 more
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A Pre-synchronization Strategy for Grid-forming Virtual Oscillator Controlled Inverters
2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020Voltage controlled inverters in ac systems are susceptible to damage if the controller is not properly initialized before startup. Since currents are not controlled explicitly, the voltage reference of the controller must be closely aligned with the point of common coupling voltage to prevent large current transients when power delivery begins. In this
Minghui Lu +4 more
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Pre-synchronization Control Method of Virtual Synchronous Generator with Alterable Inertia
2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2019Virtual synchronous generator (VSG) is considered to be a promising grid-connect method for distributed generators (DGs) due to its inertial response and grid support ability. Just the same as conventional synchronous generators, the VSG should be regulated in synchronism with the point of common coupling (PCC) before grid-connection to avoid inrush ...
Pengxiang Xing +5 more
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Adaptive Pre-Synchronization and Discrete-Time Implementation for Unified Virtual Oscillator Control
2021 IEEE Energy Conversion Congress and Exposition (ECCE), 2021Unified virtual oscillator controller (uVOC) is a nonlinear time-domain controller which offers robust synchronization and enhanced fault ride-through for grid-following (GFL) and grid-forming (GFM) converters without the need for switching to a back-up controller.
M A Awal +4 more
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Pre-synchronization control for parallel inverters based on power line communication
2008 IEEE Power Electronics Specialists Conference, 2008A novel wireless parallel control for inverters based on power line communication (PLC) is proposed, where the pre-synchronized control for voltage reference is realized beyond the current distribution control. The PLC modem chip is controlled by digital signal processor (DSP) to realize data transmitting and receiving operations through power line. By
null Zhongyi He +3 more
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2024 IEEE 7th International Electrical and Energy Conference (CIEEC)
Yang Shang, Lidong Wang, Xiaoyi Qu
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Yang Shang, Lidong Wang, Xiaoyi Qu
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