Split-Phase Boost PWM AC-AC Converter with Inherent Output Voltage Balancing

2021 ◽  
Author(s):  
Dai-Van Bui ◽  
Honnyong Cha
Keyword(s):  
Output Voltage ◽  
Voltage Balancing

A novel dual output boost converter with output voltage balancing

2016 ◽  
Author(s):  
Siho Park ◽  
Honnyong Cha ◽  
Heung-Geun Kim ◽  
Juyong Kim ◽  
Jintae Cho
Keyword(s):  
Output Voltage ◽  
Boost Converter ◽  
Voltage Balancing

A Novel Dual Output Dual-Active-Bridge Converter with Output Voltage Balancing

2019 ◽  
Author(s):  
Kisu Kim ◽  
Jeonghun Kim ◽  
Honnyong Cha ◽  
Sanghun Kim
Keyword(s):  
Output Voltage ◽  
Voltage Balancing ◽  
Dual Active Bridge

A New Nonisolated High-Voltage-Gain Boost Converter With Inherent Output Voltage Balancing

2018 ◽  
Vol 65 (3) ◽  
pp. 2189-2198 ◽  
Author(s):  
Hyemin Kang ◽  
Honnyong Cha
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
Boost Converter ◽  
Voltage Gain ◽  
Voltage Balancing ◽  
High Voltage Gain

scholarly journals Circulating Current Suppression Control in Surrogate Network of MMC- HVDC System

2020 ◽  
Vol 8 (6S) ◽  
pp. 29-34
Keyword(s):  
Output Voltage ◽  
Electromagnetic Transients ◽  
Modular Multilevel Converter ◽  
Multilevel Converter ◽  
Voltage Balancing ◽  
Hvdc System ◽  
Circulating Current ◽  
Capacitor Voltage ◽  
Circulating Currents ◽  
Three Phases

Modular multilevel converter consists of hundreds of submodules (SMs) like half bridge and full bridge converters etc. These hundreds of SMs and electrical nodes poses challenges while computing electromagnetic transients (EMTs). This problem becomes more complex while computed in real-time. To overcome this, an equivalent topology to model MMC arm/valve called surrogate network is utilized. But, the major ambiguity integrated with surrogate network model is SM capacitor voltage balancing. This leads to variation in voltage among the three phases which are parallel and produces circulating current between the three phases. A control circuitry is proposed in this paper to suppress/minimize circulating currents between the phases. Apart from circulating current suppression, the ‘ac’ output voltage is also enhanced at the converter with this proposed controller. Simulation is carried out in RSCAD software using RTDS simulator.

AC–DC boost converter based on T-type multi-state switching cell and output voltage balancing

2020 ◽  
Vol 56 (18) ◽  
pp. 949-951
Author(s):  
F.M.A. Linard ◽  
R.P.T. Bascopé
Keyword(s):  
Output Voltage ◽  
Boost Converter ◽  
Voltage Balancing ◽  
State Switching

scholarly journals DC-link voltage balancing in cascaded H-Bridge converters

2014 ◽  
Vol 63 (3) ◽  
pp. 439-455 ◽  
Author(s):  
Arkadiusz Lewicki
Keyword(s):  
Control Strategy ◽  
Pulse Width ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Optimal Choice ◽  
Space Vector ◽  
Voltage Balancing ◽  
Voltage Unbalance ◽  
Voltage Vector ◽  
Experimental Researches

Abstract In this paper a DC-link voltage balancing strategy for multilevel Cascaded H-Bridge (CHB) converter is proposed. Presented solution bases on optimal choice of active vector durations in Space-Vector Pulse Width Modulation (SV-PWM). It makes it possible to DC-link voltages control and to properly generate the output voltage vector in the case of DC-link voltage unbalance. Results of simulation and experimental researches on proposed control strategy are presented in the paper

scholarly journals Generalized Structures for Switched-Capacitor Multilevel Inverter Topology for Energy Storage System Application

2021 ◽  
Vol 11 (3) ◽  
pp. 1319
Author(s):  
Mu Anas ◽  
Adil Sarwar ◽  
Anzar Ahmad ◽  
Afroz Alam ◽  
Shafiq Ahmad ◽  
...  
Keyword(s):  
Output Voltage ◽  
General Structure ◽  
Storage System ◽  
Harmonic Distortion ◽  
Low Frequency ◽  
Energy Storage System ◽  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Voltage Waveform ◽  
Voltage Balancing

The apparent advantages of Multilevel Inverter (MLI) topologies in handling medium and high power with less loss in switching and lower harmonic distortion in an output voltage waveform makes it better than the conventional inverter. However, the MLI topologies utilize a large number of DC power supplies and power semiconductor devices. They also have a higher value of total standing voltage (TSV). Moreover, capacitor voltage balancing problems, self-voltage boosting inability, and complex control techniques require a relook and improvement in their structure. More recently, Switched-Capacitor Multilevel Inverter (SCMLI) topologies have been proposed to overcome the shortcomings of MLIs. In this paper, a generalized structure for a single-phase switched capacitor multilevel inverter (SCMLI) with self-voltage boosting and self-voltage balancing capability is proposed. A detailed analysis of a general structure of SCMLI is presented. The comparative analysis of the structures is carried out with recently reported topologies to demonstrate superiority. An optimized low-frequency modulation controls the output voltage waveform. The simulation and experimental results are included in the paper for single-unit symmetric (9-level voltage) and asymmetric (17-level voltage) configurations.

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