References
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- Dirba, J., Levin, N., & Pugachov, V. (2006). Vēja Energijas elektromehāniskie pārveidotāji. Rīga: RTU, p. 312 (in Latvian).
- Spooner, E., & Williamson, A. (1996). Direct coupled permanent magnet generators for wind turbine applications. IEEE proceedings, Electric Power Appl., 143 (1).10.1049/ip-epa:19960099
- Postnikov, I. (1975). Total theory and transiet processes in electrical machines. Moscow: High School, 220 (in Russian).
- Kopilov, I. (1987). Mathematical modelling of electrical machine. Moscow: High School, 248 (in Russian).