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Theory of impedance networks: The two-point impedance and LC resonances [PDF]
Journal of Physics A: Mathematical and General, 2006 We present a formulation of the determination of the impedance between any two nodes in an impedance network. An impedance network is described by its Laplacian matrix L which has generally complex matrix elements.
Alexander C +11 more
core +10 more sources
Review of Local Network Impedance Estimation Techniques [PDF]
IEEE Access, 2020 As a result of increasing variability of network impedance, interest in impedance estimation techniques is growing. This review contextualises local impedance estimation techniques by providing a historical prospective on the uses of these techniques ...
Mathieu Kervyn De Meerendre +5 more
doaj +5 more sources
IEEE Access, 2022 This paper proposes a novel topology, named a single-phase active switched-capacitor embedded quasi-Z-source inverter (ASC-EqZSI), and two pulse-width modulation (PWM) methods, namely, PWM1 and PWM2 methods for the proposed ASC-EqZSI topology to improve ...
Anh-Tuan Huynh, Anh-Vu Ho, Tae-Won Chun
doaj +1 more source
Application of Improved Droop Control Based on Grid Impedance in Photovoltaic Grid-Connected Power Generation system [PDF]
E3S Web of Conferences, 2021 When the power grid impedance mutates, the output power of the grid-connected photovoltaic power generation system controlled by drooping will become very unstable.
Hao Xu Hao, Fang Wang, Cheng Liang Zhi
doaj +1 more source
Transformerless High Step-Up DC-DC Converter With Low Voltage Stress for Fuel Cells
IEEE Access, 2021 Conventional dc-dc boost converter has limited boost capacity, and its power device suffers high voltage stress. A novel hybrid Z-source dc-dc converter featured with high step-up capability and low device voltage stress is proposed in this article ...
Jiawei Zhao, Daolian Chen, Jiahui Jiang
doaj +1 more source
IEEE Access, 2021 Conventional dc-dc Boost converter has limited boost capacity, and its power device suffers high voltage stress. A novel Z-source based dc-dc boost converter featured with high step-up capability and low device voltage stress is proposed in this paper ...
Jiawei Zhao, Daolian Chen
doaj +1 more source
Improved Symmetric Switched-Inductor/Capacitor Quasi Z-Source Inverter with Ability Uplifted-Boost [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2020 This paper proposes a topology of switched-inductor/capacitor quasi z-source inverter (SIC-qZSI), which based on the classic qZSI. This topology is symmetric and has a high boost factor in the low duty cycle and high modulation index.
Alireza Karbalaei, Mohammad Mardaneh
doaj +1 more source
Unit Partition Resonance Analysis Strategy for Impedance Network in Modular Power Converters
Frontiers in Energy Research, 2022 In modular power converters, the dc-link capacitor has the highest failure rate due to thermal stress, reducing system performance and reliability. Current harmonics are one of the prominent causes of thermal stress on the dc-link capacitor that may get ...
Mustafa Tahir +3 more
semanticscholar +1 more source
Adaptive fuzzy-based stability control and series impedance correction for the grid-tied inverter
Mathematical Biosciences and Engineering, 2023 The regenerative braking in the tram allows the energy to be returned to the power grid through a power inverter. Since the inverter location between the tram and the power grid is not fixed, resulting in a wide variety of impedance networks at grid ...
Sue Wang +8 more
doaj +1 more source
Automotive Innovation, 2021 The development of fuel cell vehicles (FCVs) has a major impact on improving air quality and reducing other fossil-fuel-related problems. DC-DC boost converters with wide input voltage ranges and high gains are essential to fuel cells and DC buses in the
Xiaogang Wu +5 more
semanticscholar +1 more source