Results 21 to 30 of about 1,023,143 (295)

A Half-Bridge Voltage Balancer with New Controller for Bipolar DC Distribution Systems

open access: yesEnergies, 2016
This paper proposes a half-bridge voltage balancer with a new controller for bipolar DC distribution systems. The proposed control scheme consists of two cascaded Proportional Integral (PI) controls rather than one PI control for balancing the pole ...
Byung-Moon Han
doaj   +1 more source

Modified phase-shifted PWM control for flying capacitor multilevel converters [PDF]

open access: yes, 2007
The issue of voltage imbalance remains a challenge for the flying capacitor multilevel converter. The phase-shifted pulsewidth modulation (PS-PWM) method has a certain degree of self-balancing properties.
Chunmei Feng   +5 more
core   +2 more sources

A Novel Submodule Voltage Balancing Scheme for Modular Multilevel Cascade Converter—Double-Star Chopper-Cells (MMCC-DSCC) Based STATCOM

open access: yesIEEE Access, 2019
A novel capacitor voltage balancing scheme for modular multilevel cascade converter-double-star chopper-cells (MMCC-DSCC)-based STATCOM is proposed in this paper.
Yu Jin   +8 more
doaj   +1 more source

A Modularized Discharge-Type Balancing Topology for Series-Connected Super Capacitor String

open access: yesEnergies, 2018
This paper proposed a modularized discharge-type topology for the voltage balance of series-connected super capacitor (SC) string. The proposed topology consists of cascaded converter modules and a boost converter.
Shaogui Fan   +3 more
doaj   +1 more source

Linearised three‐phase optimal power flow for coordinated optimisation of residential solid‐state power substations

open access: yesIET Energy Systems Integration, 2021
With the increasing integration of single‐phase resources, for example, PV, batteries and solid‐state power substations (SSPSs), in residential distribution networks, voltage regulation and phase balancing of distribution feeders are facing growing ...
Guodong Liu   +3 more
doaj   +1 more source

A predictive control with flying capacitor balancing of a multicell active power filter [PDF]

open access: yes, 2008
Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Llor, Ana-Maria   +2 more
core   +1 more source

DC Voltage Balancing Strategy of a Bipolar-Output Active Rectifier for More Electric Aircraft Based on Zero Vector Redistribution

open access: yesIEEE Access, 2021
The ±270 V bipolar dc distribution has become an attractive power supply scheme in more electric aircraft (MEA). In this paper, a dc voltage balancing strategy based on zero vector redistribution (ZVR) is proposed for a three-phase coupled ...
Yajun Zhao, Wenxin Huang, Feifei Bu
doaj   +1 more source

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

open access: yes, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Llor, Ana-Maria   +2 more
core   +1 more source

Analysis of pulsation concentration effect related to sorting-algorithm-based voltage-balancing strategy in an MMC system

open access: yesEnergy Reports, 2020
The sorting-algorithm-based voltage-balancing strategy in modular multilevel converter (MMC) changes the submodule operating state to regulate the charging and discharging time of submodule capacitors and to balance the capacitor voltages. However, these
Chuyang Wang, Li Zhang, Zitao Zhang
doaj   +1 more source

Improved voltage balancing scheme for the MLI based DSTATCOM with Sliding Mode Controller

open access: yesJournal of Applied Science and Engineering
In 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

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