TY - JOUR
T1 - Analysis and Design of a Novel Six-Switch Five-Level Active Boost Neutral Point Clamped Inverter
AU - Siwakoti, Yam Prasad
AU - Palanisamy, Aswin
AU - Mahajan, Akshay
AU - Liese, Stephan
AU - Long, Teng
AU - Blaabjerg, Frede
PY - 2020/12
Y1 - 2020/12
N2 - This article presents an analysis and design of a new boost type six-switch five-level (5L) active neutral point clamped (ANPC) inverter based on switched/flying capacitor technique with self-voltage balancing. Compared to major conventional 5L inverter topologies, such as neutral point clamped, flying capacitor, cascaded H-bridge, and ANPC topologies, the new topology reduces the dc-link voltage requirement by 50%. Whilst reducing the dc-link voltage requirement, the number and the size of the active and passive components are also reduced without compromising the reactive power capability. The analysis shows that the proposed topology is suitable for wide range of power conversion applications (for example, rolling mills, fans, pumps, marine appliances, mining, tractions, and most prominently grid-connected renewable energy systems). Experimental results from a 1.2 kVA prototype justifies the concept of the proposed inverter with a conversion efficiency of around 97.5% ± 1% for a wide load range.
AB - This article presents an analysis and design of a new boost type six-switch five-level (5L) active neutral point clamped (ANPC) inverter based on switched/flying capacitor technique with self-voltage balancing. Compared to major conventional 5L inverter topologies, such as neutral point clamped, flying capacitor, cascaded H-bridge, and ANPC topologies, the new topology reduces the dc-link voltage requirement by 50%. Whilst reducing the dc-link voltage requirement, the number and the size of the active and passive components are also reduced without compromising the reactive power capability. The analysis shows that the proposed topology is suitable for wide range of power conversion applications (for example, rolling mills, fans, pumps, marine appliances, mining, tractions, and most prominently grid-connected renewable energy systems). Experimental results from a 1.2 kVA prototype justifies the concept of the proposed inverter with a conversion efficiency of around 97.5% ± 1% for a wide load range.
KW - Active-neutral-point clamped (ANPC) inverter
KW - flying capacitor (FC)
KW - multilevel inverter
KW - pulsewidth modulation (PWM)
UR - http://www.scopus.com/inward/record.url?scp=85090594559&partnerID=8YFLogxK
U2 - 10.1109/TIE.2019.2957712
DO - 10.1109/TIE.2019.2957712
M3 - Journal article
SN - 0278-0046
VL - 67
SP - 10485
EP - 10496
JO - I E E E Transactions on Industrial Electronics
JF - I E E E Transactions on Industrial Electronics
IS - 12
M1 - 8945164
ER -