Cascade frequency converters control features
| Autor: | Aleksei G. VORONTSOV, Vasilii V. GLUSHAKOV, Mikhail V. PRONIN, Yuriy A. SYCHEV |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:TN1-997
Computer science media_common.quotation_subject diode rectifier Asymmetry law.invention law Dc capacitor symmetry of the currents Transformer lcsh:Mining engineering. Metallurgy Diode media_common Control algorithm control algorithm experiment business.industry active rectifier Electrical engineering single-phase inverter Geology Converters Geotechnical Engineering and Engineering Geology Cascade cascade frequency converter Economic Geology business Voltage |
| Zdroj: | Zapiski Gornogo Instituta, Vol 241, Iss 1, Pp 37-45 (2020) |
| ISSN: | 2541-9404 2411-3336 |
| Popis: | The structures of systems with high-voltage cascade frequency converters containing multi-winding transformers and low-voltage low-power converters connected in series at each output phase of the load are considered. Low-voltage blocks contain three-phase diode or active rectifiers, DC capacitor filters, single-phase stand-alone voltage inverters and block disconnecting devices in partial modes (in case of failure when part of the blocks are disconnected). The possibilities of operation of cascade converters are determined, equations for correcting tasks to units in partial modes are given, tables of correction of tasks with estimates of achievable load characteristics are proposed. The results of experiments on the model of a powerful installation with a cascade frequency converter are presented, confirming the possibility of ensuring the symmetry of the load currents when disconnecting part of the blocks and the asymmetry of the circuit. |
| Databáze: | OpenAIRE |
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