Results 11 to 20 of about 35,601 (122)
Synchronization Stability of Grid-Connected VSC With Limits of PLL
IEEE Transactions on Power Systems, 2023 Limits of phase locked loop (PLL) are necessary to make sure the transient converter frequency bounded in a safety range. This leads to the grid-connected voltage source converter (VSC) with limits of PLL as one switched system.
Yujun Li +4 more
semanticscholar +1 more source
A Cryo-CMOS PLL for Quantum Computing Applications
IEEE Journal of Solid-State Circuits, 2023 This article presents the first cryogenic phase-locked loop (PLL) operating at 4.2 K. The PLL is designed for the control system of scalable quantum computers.
Jiang Gong +3 more
semanticscholar +1 more source
Robust PLL Synchronization Unit for Grid-Feeding Converters in Micro/Weak Grids
IEEE Transactions on Industrial Informatics, 2023 A grid-feeding voltage source converter (GFD-VSC) requires a phase-locked loop (PLL) synchronization unit to be connected to the grid. The PLL critically affects the dynamic performance and stability of the GFD-VSC.
Mohsen Eskandari, A. Savkin
semanticscholar +1 more source
A Unified Multibit PUF and TRNG Based on Ring Oscillators for Secure IoT Devices
IEEE Internet of Things Journal, 2023 Physically unclonable functions (PUFs) and true random number generators (TRNGs) are cryptographic primitives very well suited for secure IoT devices. This article proposes a circuit, named multibit-RO-PUF-TRNG, which offers the advantages of unifying ...
I. Baturone +2 more
semanticscholar +1 more source
IEEE Access, 2022 This article presents a comprehensive comparison of three control strategies used for grid-following inverters (GFLIs). The first strategy is the phase-locked loop (PLL)-based vector current control (VCC), and the other two PLL-less controllers are the ...
N. Mohammed, Weihua Zhou, B. Bahrani
semanticscholar +1 more source
Placing Grid-Forming Converters to Enhance Small Signal Stability of PLL-Integrated Power Systems [PDF]
IEEE Transactions on Power Systems, 2020 The modern power grid features the high penetration of power converters, which widely employ a phase-locked loop (PLL) for grid synchronization. However, it has been pointed out that PLL can give rise to small-signal instabilities under weak grid ...
Chaoran Yang +3 more
semanticscholar +1 more source
Impact of Power Grid Strength and PLL Parameters on Stability of Grid-Connected DFIG Wind Farm
IEEE Transactions on Sustainable Energy, 2020 This paper investigates the impact of power grid strength and phase-locked loop (PLL) parameters on small signal stability of grid-connected doubly fed induction generator (DFIG)-based wind farm.
Ju Liu +6 more
semanticscholar +1 more source
Rethinking Current Controller Design for PLL-Synchronized VSCs in Weak Grids
IEEE transactions on power electronics, 2021 This article revisits the design of the current controller for grid-connected voltage-source converters (VSCs), considering the dynamic impacts of the phase-locked loop (PLL), weak grids, and of voltage feedforward (VFF) control.
Hong Gong, Xiongfei Wang, L. Harnefors
semanticscholar +1 more source
Delta-Sigma signal processing in control engineering [PDF]
, 2019 In modernen Anwendungen werden überabtastende Analog-zu-Digital Umsetzer eingesetzt. Eine besondere Klasse sind die Delta-Sigma-Analog-zu-Digital Umsetzer (ADU).
Klein, Axel
core +1 more source
Effects of oscillator phase noise on frequency delta sigma modulators with a high oversampling ratio for sensor applications [PDF]
, 2021 Frequency delta sigma modulation (FDSM) is a unique analog to digital conversion technique featuring large dynamic range with wide frequency band width. It can be used for high performance digitaloutput sensors, if the oscillator in the FDSM is replaced ...
Maezawa Koichi, Mori Masayuki
core +2 more sources