Soft starting and braking application for squirrel-cage induction motors operating in intermittent duty

• Autorzy: Firago B. , Vasilyev D.
• Języki publikacji: EN

Abstrakty

EN

This paper deals with energetic aspects of soft starting and braking application for the squirrelcage induction motors operating in intermittent duty with constant load. Energy losses in transients of an induction motor for different laws of voltage changing as well as induction motor stator winding temperature at the end of starting process are calculated and compared with the ones during fullvoltage starting and plug braking. Energy losses calculation during induction motor soft starting and braking has been performed analytically and via the Matlab simulation models of equivalent twophase induction motor in alfa to beta coordinates. The results of both calculation methods are compared and a divergence between them is determined. Also the effect of total energy losses on the induction motor stator winding temperature at the end of the motor starting process and its allowable frequency of starting is analyzed. Analytical calculation and simulation of soft starting and braking have been performed with allow for the linear and exponential laws of the first voltage harmonic magnitude changing. The results of simulation and analytical calculations are given in the tables.

Słowa kluczowe

EN

soft starting and braking; squirrel-cage induction motor; energy losses; stator winding temperature; frequency of starting

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej. Studia i Materiały
• Rocznik: 2012
• Tom: Vol. 66, nr 32, t. 1
• Strony: 339--349
• Opis fizyczny: Bibliogr. 4 poz., rys., tab.

Twórcy

autor

Firago B.

autor

Vasilyev D.

• Belarusian National Technical University, Belarus, 220027, Minsk, F. Skaryna 65,

Bibliografia

• [1] VASILEV D., Issledovanie elektromehanicheskikh processov pri pryamom puske i tormozhenii asinhronnyh dvigateley s uchetom peremennykh parametrov i sravnenie ikh s plavnym puskom i tormozheniem, Vestnik Kremenchugskogo gosudarstvennogo universiteta imeni Mikhaila Ostrogradskogo, Kremenchug, KGU, 2010, Vyp. 4/2010 (63), No. 1, 43–49.
• [2] Catalogue “SIRIUS soft starters”, Automation and Drives, Low-Voltage Controls and Distribution, Siemens AG, January, 2005.
• [3] RADIN V., Elektricheskie mashiny: Asinkhronnye mashiny, Ucheb. dla elektromekh. spec. vuzov, pod red. I.P. Kopylova, M. Vyssh. Shk., 1988, 328.
• [4] FIRAGO B., PAWLACZYK L., Reguliruemye elektroprivody peremennogo toka, Minsk, Technoperspektiva, 2006, 363.