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Single-Phase Three-Wire Power Converters Based on Two-Level and Three-Level Legs Using a Space-Vector PWM-Based Voltage Balancing
- Source :
- IEEE Transactions on Industry Applications. 57:2654-2665
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- This article proposes four converters for interfacing a single dc power source and loads of a single-phase three-wire system. The topologies of the proposed converters are based on two-level (2L) and three-level neutral point clamped (NPC) legs. For regulating the dc-link capacitors of the NPC-based converters, a dc-link voltage-balancing technique is proposed to balance the neutral-point voltage using the space-vector pulsewidth modulation, considering the harmonic distortion of the output voltages and the semiconductor losses from an algorithm that defines the vector sequences to be applied. These characteristics make the proposed converters suitable for applications in microgrid employing dc distributed energy resources or ac power supply by adding ac–dc stage. The proposed converters are compared to a conventional 2 L converter from simulated results for evaluating the semiconductor losses in balanced and unbalanced load scenarios. Experimental results are presented to verify the effectiveness of the proposed voltage-balancing technique and to validate the converters.
- Subjects :
- Total harmonic distortion
Computer science
business.industry
020208 electrical & electronic engineering
05 social sciences
02 engineering and technology
AC power
Converters
Industrial and Manufacturing Engineering
law.invention
Power (physics)
Capacitor
Control and Systems Engineering
law
Distributed generation
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
0501 psychology and cognitive sciences
Microgrid
Electrical and Electronic Engineering
business
050107 human factors
Voltage
Subjects
Details
- ISSN :
- 19399367 and 00939994
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Industry Applications
- Accession number :
- edsair.doi...........05b97d7f01c5abc9ad91ea499cb46912