Direct model-based predictive control scheme without cost function for voltage source inverters with reduced common-mode voltage
| Autor: | Sangshin Kwak, Jae-Chang Kim, Sung-Ki Moon |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020209 energy 020208 electrical & electronic engineering 02 engineering and technology Model predictive control Mesh analysis Control theory 0202 electrical engineering electronic engineering information engineering Common-mode signal Voltage droop Voltage regulation Voltage source Electrical and Electronic Engineering business Voltage reference Voltage |
| Zdroj: | International Journal of Electronics. 105:629-644 |
| ISSN: | 1362-3060 0020-7217 |
| DOI: | 10.1080/00207217.2017.1382006 |
| Popis: | This paper presents a direct model-based predictive control scheme for voltage source inverters (VSIs) with reduced common-mode voltages (CMVs). The developed method directly finds optimal vectors without using repetitive calculation of a cost function. To adjust output currents with the CMVs in the range of –Vdc/6 to +Vdc/6, the developed method uses voltage vectors, as finite control resources, excluding zero voltage vectors which produce the CMVs in the VSI within ±Vdc/2. In a model-based predictive control (MPC), not using zero voltage vectors increases the output current ripples and the current errors. To alleviate these problems, the developed method uses two non-zero voltage vectors in one sampling step. In addition, the voltage vectors scheduled to be used are directly selected at every sampling step once the developed method calculates the future reference voltage vector, saving the efforts of repeatedly calculating the cost function. And the two non-zero voltage vectors are optimally all... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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