지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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This paper describes a scheme for stator flux oriented control of 3-phase induction machine using PWM(Pulse Width Modulation) inverters.
The instantaneous values of the flux and torque, which are calculated from the primary variables, are controlled directly and independently by selecting optimum output voltage vector, so as to attain fast torque response, low inverter switching frequency and low harmonic losses. In steady state operation, the amplitude of stator flux is controlled to obtain the maximum efficiency. And dead time for power device protection is also compensated with modifing stator flux calculation.
DSP(Digital Signal Processor) was employed for instantaneous calculation of the flux and torque, and IGBT(Insulated Gate Bipolar Transistor) was used for the high frequency switching. Software simulation and experiment are carried out to show the excellent characteristics for torque response and efficiency improvements.
The instantaneous values of the flux and torque, which are calculated from the primary variables, are controlled directly and independently by selecting optimum output voltage vector, so as to attain fast torque response, low inverter switching frequency and low harmonic losses. In steady state operation, the amplitude of stator flux is controlled to obtain the maximum efficiency. And dead time for power device protection is also compensated with modifing stator flux calculation.
DSP(Digital Signal Processor) was employed for instantaneous calculation of the flux and torque, and IGBT(Insulated Gate Bipolar Transistor) was used for the high frequency switching. Software simulation and experiment are carried out to show the excellent characteristics for torque response and efficiency improvements.
목차
ABSTRACT
INTRODUCTION
EQUATION OF INVERTER DRIVE SYSTEM
DIRECT TORQUE AND FLUX CONTROL
EFFECT AND COMPENSATION OF DEAD TIME
CONTROL HARDWARE DESIGN
CONTROL SOFTWARE DESIGN
EXPERIMENTAL RESULTS
CONCULSION
REFERENCES
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