Model Predictive Control of Circulating Current Suppression in Parallel-Connected Inverter-fed Motor Drive Systems
- Authors
- Kang, Shin-Won; Soh, Jae-Hwan; Kim, Rae-Young
- Issue Date
- May-2018
- Publisher
- KOREAN INST ELECTR ENG
- Keywords
- Parallel three-phase voltage source inverters; Zero-sequence circulating current; Interior permanent magnet synchronous motor(IPMSM); Model predictive control(MPC)
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.13, no.3, pp.1241 - 1250
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 13
- Number
- 3
- Start Page
- 1241
- End Page
- 1250
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/150102
- DOI
- 10.5370/JEET.2018.13.3.1241
- ISSN
- 1975-0102
- Abstract
- Parallel three-phase voltage source inverters in a direct connection configuration are widely used to increase system power ratings. A zero-sequence circulating current can be generated according to the switching method; however, the zero-sequence circulating current not only distorts current, but also reduces the system reliability and efficiency. In this paper, a model predictive control scheme is proposed for parallel inverters to drive an interior permanent magnet synchronous motor with zero-sequence circulating current suppression. The voltage vector of the parallel inverters is derived to predict and control the torque and stator flux components. In addition, the zero-sequence circulating current is suppressed by designing the cost function without an additional current sensor and high-impedance inductor. Simulation and experimental results are presented to verify the proposed control scheme.
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