โ ูุชุงุจ Six step inverter to drive the three phase induction motor โ โค ุญู
ุฏู ู
ุญู
ุฏ ุณููู
ุงู
In the present time, in the most of the applications, AC machines are useful than DC machines due to their simple and most robust construction without any mechanical commutators. The cheapest AC machines are induction motors so, the induction motors are used in this project. The induction motors are the most widely used motor drives in industry because of its simple construction and other advantages such as reliable operation, low initial cost, easy operation and simple maintenance and having good speed control. Invention of modern semiconductor switches like MOSFET and IGBT increases the freedom for controlling electric machines.
Three-phase DC- AC six step inverter is one of the simplest way control the induction motor. The six step inverter and induction motor are used in various applications because they have low cost, high efficiency, wide speed range and robustness. Now thyristor, MOSFET and IGBT more commonly employed in soft starting of induction motor. These techniques are more economical, convenient and reliable.
In this project the main focus is on a six-step inverter to control the voltage level for three-phase induction motor. In this project the performance evaluation of the three-phase induction motor with six step voltage source inverter was studied at different loads. These loads are constant load and fan load.
ุญู
ุฏู ู
ุญู
ุฏ ุณููู
ุงู - ุฏูุชูุฑ ู
ููุฏุณ: ุญู
ุฏู ู
ุญู
ุฏ ุณููู
ุงู
ุญุงุตู ุนูู ุฏุฑุฌุฉ ุงูุฏูุชูุฑุงุฉ ู
ู ููุฏุณุฉ ุงููุงูุฑุฉ ูู ููุฏุณุฉ ุงูููู ูุงูุงูุงุช ุงูููุฑุจูุฉ
ุนุฏุฏ ุงูุงูุฑุงู ุงูุจุญุซูุฉ ุงูุชู ุชู
ูุดุฑูุง ุงูู ุงูุงู 25ุจุญุซ ุนูู
ู
ุนุฏุฏ ุงูููุฑุณุงุช ุงูุชู ุชู
ุชุฏุฑูุณูุง 20ููุฑุณ ููุฏุณู ูุนุฏุฏ ู
ู ุงูุฏูุฑุงุช ุงูุชุฏุฑูุจูุฉ
ุงู
ุงูู ุชู
ุงูุนู
ู ุจูุง
ุงูู
ุนูุฏ ุงูุนุงูู ููููุฏุณุฉ ูุงูุชูููููุฌูุง ุจุงูู
ุฑุฌ ุงูุฌุฏูุฏุฉ
ุงูู
ุนูุฏ ุงูุชูููููุฌู ุงูุนุงูู ููููุฏุณุฉ ุจูุฑุน ุงูุนุงุดุฑ ู
ู ุฑู
ุถุงู ููุฑุน ุงูุณุงุฏุณ ู
ู ุงูุชูุจุฑ
ุงูุฌุงู
ุนุฉ ุงูุนู
ุงููุฉ
ูููุฉ ุงูููุฏุณุฉ ุจุฌุงู
ุนุฉ ู
ุตุฑ ููุนููู
ูุงูุชูููููุฌู โฐ ูู ู
ุฌู
ูุนุฉ ู
ู ุงูุฅูุฌุงุฒุงุช ูุงูู
ุคููุงุช ุฃุจุฑุฒูุง โ ุงูุนูุงุตุฑ ุงูุบูุฑ ูุนุงูุฉ ุงูู
ุณุชุฎุฏู
ุฉ ุจุงูุฏูุงุฆุฑ ุงูุงููุชุฑูููุฉ โ โ Six step inverter to drive the three phase induction motor โ โ ู
ูุธูู
ุฉ ุชูููุฏ ุงูุทุงูุฉ ุงูููุฑุจูุฉ โ โ ุงูุฏูุงุฆุฑ ุงูู
ุทุจูุนุฉ PCB โ โ DC Machines and Transformer โ โ ุงูุนูุงุตุฑ ุงููุนุงูุฉ ุงูู
ุณุชุฎุฏู
ุฉ ุจุงูุฏูุงุฆุฑ ุงูุงููุชุฑูููุฉ โ โ USING POWER SEMICONDUCTOR TO DRIVE THE THREE PHASE INDUCTION MOTORS โ โ ุงุณุชุฎุฏุงู
ุงุดุจุงู ู
ูุตูุงุช ุงููุฏุฑุฉ ูููุงุฏุฉ ุงูู
ุญุฑูุงุช ุงูุชุงุซูุฑูุฉ ุซูุงุซูุฉ ุงูุฃูุฌู โ โ ุงูุนุงูุณ ุฐู ุงูุณุช ุฎุทูุงุช โ ุงููุงุดุฑูู : โ ุฌู
ูุน ุงูุญููู ู
ุญููุธุฉ ููู
ุคูู โ โฑ
ู
ู ุงูููุฏุณุฉ ุงูููุฑุจุงุฆูุฉ - ู
ูุชุจุฉ ูุชุจ ุงูููุฏุณุฉ ูุงูุชูููููุฌูุง.