Capacitor balancing controller voltage sorting statistics in modular multilevel converters [PDF]
2017 IEEE Southern Power Electronics Conference (SPEC), 2017 Modular multilevel converters (MMCs) are made up of many submodules (SMs) connected in series. In order to avoid semiconductor over-voltages, SM capacitors should be kept within strict voltage limits. The capacitor balancing controller (CBC) is used to sort SM capacitor voltages prior to modulation.
Heath, Theodor +3 more
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Self-precharge in single-leg flying capacitor converters [PDF]
, 2009 Flying Capacitor (FC) multilevel pulse width modulated (PWM) converters are an attractive choice due to the natural voltage balance property. During start-up of the converter, care has to be taken that the power switches are not exposed to voltage ...
Melkebeek, Jan +2 more
core +2 more sources
Capacitor voltage balance control strategy based on MMC-MTDC
E3S Web of Conferences, 2022 The MMC is composed of a large number of sub-modules. The operating conditions of each sub-module are different, which will inevitably affect the capacitor voltage of each sub-module, resulting in the difference of the capacitor voltage of each sub-module.
Ju Pengfei +5 more
openaire +2 more sources
Multiagent Based Distributed Control with Time-Oriented SoC Balancing Method for DC Microgrid
Energies, 2020 Based on the droop control, voltage regulation at the secondary control is required to eliminate the deviation of the average voltage across the microgrid. Meanwhile, to prevent any of energy storage (ESs) from over-charging or over-discharging, State-of-
Tao Wu +3 more
doaj +1 more source
IEEE 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
A predictive control with flying capacitor balancing of a multicell active power filter [PDF]
, 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.
Defaÿ, François +2 more
core +1 more source
Electro-thermal Control of Modular Battery using Model Predictive Control with Control Projections [PDF]
, 2015 This paper proposes a novel model predictive control algorithm to achieve voltage regulation and simultaneous thermal and SOC balancing of a modular battery using limited future load information. The modular battery is based on multilevel converter (MLC),
Altaf, Faisal +2 more
core +1 more source
A Half-Bridge Voltage Balancer with New Controller for Bipolar DC Distribution Systems
Energies, 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
A Bi-Directional Dual-Input Dual-Output Converter for Voltage Balancer in Bipolar DC Microgrid
Energies, 2022 Bipolar DC microgrids (BDCMGs) have several issues related to the voltage and require numerous converters to supply power to both poles. To solve these issues, a bidirectional dual-input dual-output (DIDO) converter is proposed for the voltage balancer ...
Sung-Hun Kim +3 more
doaj +1 more source
Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control [PDF]
, 2013 Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication ...
De Kooning, Jeroen +3 more
core +1 more source