Generalized Topology of a Hybrid Switched- Capacitor Multilevel Inverter for High- Frequency AC Power Distribution

Fong, Yat Chi; Raman, S. Raghu; Ye, Yuanmao; Cheng, Ka Wai Eric

doi:10.1109/jestpe.2019.2905421

Cited by 47 publications

(23 citation statements)

References 35 publications

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“…A wide comparison is carried out with other SCMLIs presented in [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] as shown in Table 4 As compared to other SCMLIs, the proposed SCMLI variants have the lowest CF/N L and TSV pu , which can be observed from Table 4 providing in depth comparison depending on various factors required for assessment of the proposed SCMLI with other topologies. The proposed 9L and 13Ls are compared with other recent topologies.…”

Section: Comparison Of the Proposed Scmlis With Other Topologiesmentioning

confidence: 99%

“…Further, loss distribution for 9L-SCMLI is compared with other relevant 9L topologies, under R-L (225 Ω −1 mH) load condition at f = 50 Hz (fundamental frequency) as shown in Table 5. As Table 4 Comparison assessment of the proposed SCMLI with other topologies SCMLI proposed in Table 5 Comparison of loss distribution in proposed 9L-SCMLI with other relevant 9L topologies Devices Proposed in [8] Proposed in [21] Proposed in [22] Proposed 9L-SCMLI con_sw sw_sw con_d sw_d con_sw sw_sw con_d sw_d con_sw sw_sw con_d sw_d con_sw sw_sw con_d sw_d expected, efficiency of the proposed 9L-SCMLI is better with least losses as compared to other proposed topologies.…”

Section: Comparison Of the Proposed Scmlis With Other Topologiesmentioning

confidence: 99%

“…An interesting way of cascading H‐bridge to acquire higher number of levels in [21] requires high cost of implementation with increased number of sources and capacitor count. Multiple DC sources connected in parallel to each other with series conversion for voltage step up results in high blocking voltage and low efficiency [22]. Despite several attempts to reduce the complexity of the SCMLIs for HFAC PDS, the component count stands still high.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Switched‐capacitor multilevel inverter with self‐voltage‐balancing for high‐frequency power distribution system

Ali¹,

Bhatnagar²,

Siwakoti³

et al. 2020

IET Power Electronics

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Switched capacitor multilevel inverter (SCMLI) with reduced components is attractive for higher number of voltage levels due to less implementation complexity and low cost. In this study, a new family of hybrid SCMLI for high frequency power distribution system is presented to eliminate the intermediate power conversion. Firstly, a five-level SCMLI employing a single voltage source is proposed, which is further extended to nine-level (9L) with its operation. Further extension/enhancement of the proposed 9L-SCMLI for generating a higher number of voltage levels with reduced number of components is achieved on the basis of structural modification. The mathematical analysis for determination of capacitance, power loss analysis and comparative analysis has been provided in detail. A comprehensive comparison with other similar topologies is also provided to highlight the merits of the proposed topology. Simulation and experimental results are discussed for various dynamic load conditions with different output frequencies to validate the suitability of the proposed SCMLI for various high-frequency AC applications, such as renewable energy systems, microgrids, electric vehicles and so on.

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Section: Comparison Of the Proposed Scmlis With Other Topologiesmentioning

confidence: 99%

Section: Comparison Of the Proposed Scmlis With Other Topologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Switched‐capacitor multilevel inverter with self‐voltage‐balancing for high‐frequency power distribution system

Ali¹,

Bhatnagar²,

Siwakoti³

et al. 2020

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…However, the use of H-bridge increases the total standing voltage (TSV) of the topology. Another hybrid topology has been suggested in [37], in which backend H-bridge has been used for the generation of the ac output voltage.…”

Section: Introductionmentioning

confidence: 99%

Dual input switched‐capacitor‐based single‐phase hybrid boost multilevel inverter topology with reduced number of components

Rawa

Siddique

Mekhilef

et al. 2020

IET Power Electronics

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A new switched-capacitor-based topology with features of boosting and self-voltage balancing of the capacitor has been proposed in this study. The proposed multilevel inverter topology uses two isolated dc voltage sources with a switchedcapacitor to produce 11 levels across the load. In this study, two different modes of the selection of dc voltage sources have been discussed for the proposed topology. Furthermore, the generalised structure of the proposed boost topology has also been discussed. Quantitative comparison with several topologies has been carried out to set the benchmark of the proposed topology. Selective harmonic elimination pulse width modulation technique has been adopted to improve the performance of the suggested topology. The power loss analysis of the proposed topology gives the maximum efficiency of 96.5% at the output power of 100 W and has an efficiency value of 95.3% at the output power of 500 W. The proposed topology has been simulated using PLECS and the simulation results have been verifying using an experimental prototype. The proposed topology has been tested for the different types of load and changes in the modulation index. The experimental results have verified the feasibility of the proposed topology.

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“…The proposed approach is simulated and experimentally evaluated, and its behavior is compared with classic management circuits (full-bridge rectifier and voltage doubler). In addition, we present a frequency study to determine the performance of the EFEH technologies under frequency variation, inspiring in future power systems (e.g., aerospace applications, computing devices, telecommunication systems, electrical vehicles, and microgrids) [21][22][23][24][25]. The remainder of this work is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

Serial Switch Only Rectifier as a Power Conditioning Circuit for Electric Field Energy Harvesting

2020

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Because traditional electronics cannot directly use the alternating output voltage and current provided by electric field energy harvesters, harvesting systems require additional regulating and conditioning circuits. In this field, this work presents a conditioning circuit, called serial switch-only rectifier (SSOR) for low-voltage electric field energy harvesting (EFEH) applications. The proposed approach consists of a tubular topology harvester mounted on the outer jacket of a 230 V three-wires electrical cable (neutral, ground, and phase), in which terminals are connected to SSOR. We compare SSOR performance with classic electronic approaches, such as a full-bridge rectifier and voltage doubler. Experimental findings showed that the gathered energy by a 1 m cylindrical harvester increased in approximately 73.3% using the SSOR as a power management circuit. Experimental findings showed that the gathered energy by a 1 m cylindrical harvester increase in approximately 73.3% using the SSOR as a power management circuit. This increase is principally due to the fact that a serial bidirectional switch disconnects the harvester from the rest of the management circuit, enhancing the charge collection process. Although simulated results disclosed that SSOR increased collected energy for smaller-scale harvesters (experimental tests obtained using a 10 cm cylindrical harvester), additional losses in bidirectional switch reduced its performance. In addition, we introduce a comprehensive analysis of EFEH systems based on SSOR according to the mains frequency for future power systems.

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Generalized Topology of a Hybrid Switched- Capacitor Multilevel Inverter for High- Frequency AC Power Distribution

Cited by 47 publications

References 35 publications

Switched‐capacitor multilevel inverter with self‐voltage‐balancing for high‐frequency power distribution system

Switched‐capacitor multilevel inverter with self‐voltage‐balancing for high‐frequency power distribution system

Dual input switched‐capacitor‐based single‐phase hybrid boost multilevel inverter topology with reduced number of components

Serial Switch Only Rectifier as a Power Conditioning Circuit for Electric Field Energy Harvesting

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