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김세주(S.J Kim),윤용호(Y.H Yoon),정균하(G.H Jung),원충연(C.Y Won),강도현(D.H Kang) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
Information of rotor position is necessary to drive Linear Switched Reluctance Motor(LSRM). Therefore, linear optical encoder is used to detect a mover position. Normally, since the price of encoder, which is used for linear motor is relatively higher than the one used for rotory motor and the cost of additional equipment increases with the length of motor. As a results, LSRM has a great part for the total cost. In this paper, as using reflective type photo-sensors, it replaced the expensive linear encoder.
김세주(S.J Kim),윤용호(Y.H Yoon),정균하(G.H Jung),원충연(C.Y Won),김영렬(Y.R Kim) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
Since rotor position information is necessary to drive the SRM, absolute-encoder, resolver and incremental encoder is used to detect a rotor position. But, it is not desirable to use a high price encoder and microprocessor under the condition of the simple driving system when precision control is not demanded. In this paper, only using the reflective type two photo-sensors replaces the conventional opto-interrupter and slotted-disk, which not only remove a slotted-disk section but drive three-phase 6/4 pole SRM bidirectionally. Therefore, control circuit can compose common analog device with low price.