Abstract
This paper proposes a new high-voltage Pulse Generator (PG), fed from low voltage dc supply V s . This input supply voltage is utilized to charge two arms of N series-connected modular multilevel converter sub-module capacitors sequentially through a resistive-inductive branch, such that each arm is charged to NV S . With a step-up nano-crystalline transformer of n turns ratio, the proposed PG is able to generate bipolar rectangular pulses of peak ±nNV s , at high repetition rates. However, equal voltage-second area of consecutive pulse pair polarities should be assured to avoid transformer saturation. Not only symmetrical pulses can be generated, but also asymmetrical pulses with equal voltage-second areas are possible. The proposed topology is tested via simulations and a scaled-down experimentation, which establish the viability of the topology for water treatment applications.
Original language | English |
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Title of host publication | 2017 IEEE Energy Conversion Congress and Exposition (ECCE) |
Publisher | IEEE |
ISBN (Electronic) | 9781509029983 |
ISBN (Print) | 9781509029990 |
Publication status | Published - 7 Nov 2017 |
Event | IEEE Energy Conversion Congress and Exposition 2017 - Cincinnati, United States Duration: 1 Sep 2017 → 5 Sep 2017 |
Conference
Conference | IEEE Energy Conversion Congress and Exposition 2017 |
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Abbreviated title | ECCE2017 |
Country/Territory | United States |
City | Cincinnati |
Period | 1/09/17 → 5/09/17 |
Keywords
- pulse generator
- modular multilevel converter (MMC)
- nano-crystalline transformer
- bipolar pulses
- rectangular pulse-waveform