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산업현장에서 벡터제어용 유도전동기의 오프라인 파라미터 추정
권병기(Byung-Ki Kwon),박가우(Ga-Woo Park),신원창(Won-Chang Shin),조응상(Eung-Sang Cho),이진섭(Jin-Seop Lee),최창호(Chang-Ho Choi) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
Parameter estimation of induction motor for vector control presented in this paper can be easily implemented and applied to inverters in the industrial field, because it needs no additional hardware such as voltage sensor and measuring equipment. At first, the stator resistance including switching loss of inverter is measured by simple voltage-current equation. Next, in pre-magnetization of machine by imposing the d-axis constant field-current, q-axis torque current is forced to the machine until its speed feedback reachs to pre-defined level of speed limit. At this time, we can measure the rotor time-constant by decreasing the distorted output-voltage inverter. At last, stator inductance, transient inductance, and moment of inertia can be measured by the relationship of output voltage, output torque and speed feedback. The validity and usefulness of this method is verified by experimental results.<br/> <br/>