Squirrel cage induction motor scalar control constant V/F analysis

Autor:	Mohd Badril Nor Shah, Khalil Azha Mohd Annuar, Sahazati Md. Rozali, Mohd Razali Mohamad Sapiee, Rozilawati Mohd Nor, M. S. M. Azali
Rok vydání:	2019
Předmět:	Physics Leakage inductance Stator law Squirrel-cage rotor Mechanics Electrical and Electronic Engineering Constant (mathematics) Electrical impedance Induction motor Voltage drop law.invention Voltage
Zdroj:	TELKOMNIKA (Telecommunication Computing Electronics and Control). 17:417
ISSN:	2302-9293 1693-6930
Popis:	In constant V/f control technique it is assume that the stator resistance and leakage inductance drops are negligible, especially at high speed and small load. In other words, the back emf is comparatively large at high speed and hence these voltage drops can be neglected. By maintaining constant V/f, constant Eg/f and hence constant air-gap flux is assumed. This assumption is however invalid at low speeds since a significant voltage drop appears across the stator impedance. The terminal voltage, V no longer approximates  ag. By using MATLAB Simulink, the open-loop constant V/f is simulated. It is shown that the performance of the drive deteriorates at low speeds. The improvement in the performance by applying voltage boost is shown and discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::14b85e717933a9013eb4e75e5d7db074 https://doi.org/10.12928/telkomnika.v17i1.8818 Zobrazit plný text záznamu Plný text ve formátu PDF