Switched capacitors 9‐level module (SC9LM) with reduced device count for multilevel DC to AC power conversion

Bhatnagar, Pallavee; Agrawal, Rekha; Dewangan, Niraj Kumar; Jain, Sushma; Gupta, Krishna Kumar

doi:10.1049/iet-epa.2019.0053

Cited by 31 publications

(39 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The AC voltage is diverted to the single input end of the unipolar current-driven squared divider circuit [9] . The squared divider's output current-driven components and external average capacitance form a low pass filter, which returns the squared or divider after the output current, completes the calculation of the effective value and outputs the converted DC signal [10] .…”

Section: ) DC Conversion Modulementioning

confidence: 99%

Design of Intelligent Circuit Characteristic Tester for Use in Harsh Environments

Zhao

Deng

2020

IEEE Access

View full text Add to dashboard Cite

This paper designs and makes an intelligent circuit characteristic tester. It is used to measure the characteristics of a specific amplifier circuit, and then to intelligently determine the reasons for the failure or change of the amplifier due to the change of components.The intelligent circuit characteristic tester is driven by a single chip microcomputer (MSP32F103V) to produce a 1 kHz sinusoidal excitation signal. The influence of the output module resistance is eliminated by an impedance matching circuit, and the input is measured. The input resistance, output resistance and magnification of the measured circuit are calculated by designing the peripheral resistance at both ends of the tested circuit. The output signal of the measured circuit is filtered for DC noise and then input to the single chip microcomputer by the AD637 DC conversion module. The amplifier's input and output resistance, magnification and fault analysis results are automatically processed and measured by the E76 module.For the result of circuit test, the tester can automatically and accurately judge and display the reason of circuit change within 2 seconds.

show abstract

Section: ) DC Conversion Modulementioning

confidence: 99%

Design of Intelligent Circuit Characteristic Tester for Use in Harsh Environments

Zhao

Deng

2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…With two dc voltage sources and two capacitors, a nine-level output voltage waveform can be achieved, however, the topology lacks the boosting of the input voltage. Similar to [10], nine-level MLI topologies with two dc voltage sources and two capacitors have been proposed in [11], [12]. The authors in [13] proposed two new topologies with two dc voltage source along with two capacitors.…”

Section: Introductionmentioning

confidence: 99%

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

et al. 2020

View full text Add to dashboard Cite

This paper presents a new boost inverter topology with nine level output voltage waveform using a single dc source and two switched capacitors. The capacitor voltages are self-balancing and thus is devoid of any sensors and auxiliary circuitry. The output voltage is twice higher than the input voltage, which eliminates the need for an input dc boost converter especially when the inverter is powered from a renewable source. The merits of the proposed topology in terms of the number of devices and cost are highlighted by comparing the recent and conventional inverter topologies. In addition to this, the total voltage stress of the proposed topology is lower and have a maximum efficiency of 98.25%. The operation and dynamic performance of the proposed topology have been simulated using PLECS software and are validated using an experimental setup considering a different dynamic operation. INDEX TERMS Multilevel inverter, nine-level inverter, step-up inverter, switched capacitor, reduce switch count.

show abstract

“…To overcome the above‐mentioned problems, switched capacitor (SC) type MLIs have been developed very recently. The SC‐MLIs [12–21] have replaced most of the isolated DC sources and switches to a single input DC source, electrolytic capacitors and switches so that the inverters would be cost‐effective and compact. Using a series‐parallel combination of the single input DC source and capacitors, the desired output is generated.…”

Section: Introductionmentioning

confidence: 99%

“…The series‐connected SC units are connected in series in the middle of the module to boost up any voltage levels for medium‐/high‐voltage applications using a single DC source. The topologies [12, 13, 15, 18–20] have inherent PR capability. For that, the TSVs of those SC‐MLIs are lesser compared to the SC‐MLIs using an additional H‐bridge for PR.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis and implementation of a generalised switched‐capacitor multi‐level inverter having the lower total standing voltage

Majumdar

Mahato

Jana

2020

IET power electron.

View full text Add to dashboard Cite

Most of the switched capacitor multi‐level inverters (SC‐MLIs) are designed with a single isolated voltage source and capacitors where voltage levels are obtained by the addition of these sources only. The common problems arise in SC‐MLIs are an unequal number of conducting paths, higher voltage drop across capacitors, sum of total inverter DC link voltages across the highest voltage rated switches and higher total standing voltage (TSV). The motivation of this work is to design a hybrid generalized SC‐MLI with reduced components aiming to maintain a constant voltage across the capacitors, to achieve higher voltage gain with minimum components used, minimum conducting paths, lower TSV, cost‐effective and an efficient inverter. A generalised SC‐MLI structure is also proposed, which can multiply the voltage across the capacitors in a binary asymmetrical manner. The design parameters of the proposed hybrid SC‐MLI topology are compared with the recently developed SC‐MLIs in terms of the number of switches, capacitors, TSV, conducting switches and industrial components cost to prove its superiority and effectiveness of the proposed inverter. The experimental prototype of a specimen 9‐level and 17‐level inverters are implemented using DS1103 and the corresponding results are presented.

show abstract

Switched capacitors 9‐level module (SC9LM) with reduced device count for multilevel DC to AC power conversion

Cited by 31 publications

References 24 publications

Design of Intelligent Circuit Characteristic Tester for Use in Harsh Environments

Design of Intelligent Circuit Characteristic Tester for Use in Harsh Environments

A Single DC Source Nine-Level Switched-Capacitor Boost Inverter Topology With Reduced Switch Count

Analysis and implementation of a generalised switched‐capacitor multi‐level inverter having the lower total standing voltage

Contact Info

Product

Resources

About