Results 21 to 30 of about 1,585 (264)
A simple DC-Link Voltage Balancing Strategy for NPC Three-level Inverters
2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe), 2023 Three-level neutral point clamped PWM inverters overcome some limitations of two-level inverters in medium voltage applications, leading to lower device ratings and greater efficiency. However, they are burdened by an intrinsic drawback of the neutral point clamped structure, which causes, under some operating conditions, a voltage imbalance of the DC ...
Foti S. +5 more
openaire +4 more sources
IEEE Access, 2021 Hybrid modular multilevel converter control and design for pumped hydro storage plants is presented, addressing application-specific shortcoming of conventional back-to-back half-bridge modular multilevel converter: high common-mode-voltage machine ...
Miodrag Basic, Milan Utvic, Drazen Dujic
doaj +1 more source
IEEE Access, 2017 This paper presents a dynamic phasor-based model for three-level front-end VIENNA rectifiers. The proposed model comprehensively predicts the behavior of the ac- and dc-side variables of the rectifier on which the issue of neutral point (NP) voltage is ...
Tiefeng Gao +3 more
doaj +1 more source
IEEE Access, 2020 To improve the fault-tolerant operation capability of bidirectional voltage source converter (BVSC), an improved model predictive current control (IMPCC) for fault-tolerant BVSC, is proposed with balanced DC-link capacitor voltage under unbalanced grid ...
Shiyang Hu +3 more
doaj +1 more source
Improved voltage balancing scheme for the MLI based DSTATCOM with Sliding Mode Controller
Journal of Applied Science and EngineeringIn this article is used to demonstrate of sliding mode controller (SMC) for a multilevel inverter based distributed static compensator (DSTATCOM)for compensation of current harmonics related power quality issues and dc side capacitor voltage balancing of
Kalagotla Chenchireddy, V Jegathesan
doaj +1 more source
Electrical Engineering, 2019 Interlinking converter topology on bipolar hybrid microgrid is gaining increasing attention during last years. The heart of bipolar hybrid microgrid structure is the interlinking converter that plays the primary role in this structure. This interlinking converter has decisive tasks in the microgrid control system and controlling the dc-bus is one of ...
Parviz Najafi +2 more
openaire +2 more sources
CES Transactions on Electrical Machines and SystemsCascaded H-bridge inverter (CHBI) with supercapacitors (SCs) and dc-dc stage shows significant promise for medium to high voltage energy storage applications.
Ye Zhang +4 more
doaj +1 more source
Energies, 2018 The dc-link voltage balance and reactive power equilibrium of the cascaded H-bridge rectifier (CHBR) are the prerequisites for the safe and stable operation of the system.
Chengwei Luo +5 more
doaj +1 more source
Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors
2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020 In order to reduce the size and weight of transmission cables, high direct current (DC) bus voltage is desired for electrical machine drives used in the hybrid powertrains of more-electric aircraft (MEA). An integrated modular machine drive (IMMD) with DC-link capacitors connected in series is adopted to break down the supply voltage for each drive ...
Wu, Fan +2 more
openaire +2 more sources
Majlesi Journal of Electrical EngineeringThis article describes the use of a sliding mode controller (SMC) in conjunction with an integral (PI) controller for a MLI based DSTATCOM to balance dc side voltage, control a cascaded H-bridge inverter, and compensate for power quality issues related ...
Kalagotla Chenchireddy +3 more
doaj +1 more source