- Title
- Short-horizon model predictive modulation of three-phase voltage source inverters
- Creator
- Townsend, Christopher D.; Mirzaeva, Galina; Goodwin, Graham C.
- Relation
- IEEE Transactions on Industrial Electronics Vol. 65, Issue 4, p. 2945-2955
- Publisher Link
- http://dx.doi.org/10.1109/TIE.2017.2750609
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2018
- Description
- Traditional model predictive control cost functions, when utilizing long prediction horizons (N ≥ 10) in power inverter applications, have demonstrated harmonic performances approaching that of schemes based on offline-generated optimal pulse patterns. However, long prediction horizons often prohibitively increase computational load. A different approach to maximizing harmonic performance is taken in this paper. It is shown that shaping the output voltage spectra using a simple feedback mechanism can significantly reduce the length of the required prediction horizon, facilitating a feasible computational load. When a short-horizon cost function is augmented by the feedback mechanism an excellent tradeoff between harmonic performance and switching loss is achieved, even with a prediction horizon of one. It is also shown that the feedback mechanism can be used to improve input reference tracking. Experimental verification of the proposed modulator is performed on a two-level three-phase inverter.
- Subject
- control strategy; feedback quantizer; model predictive control; MPC; modulation; three-phase inverter
- Identifier
- http://hdl.handle.net/1959.13/1387083
- Identifier
- uon:32522
- Identifier
- ISSN:0278-0046
- Language
- eng
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