MOTOR CONTROLLER

PROBLEM TO BE SOLVED: To improve the following of a primary magnetic flux with respect to a change in the primary magnetic flux command value.SOLUTION: A motor controller 1 has a coordinate conversion part 101; a first calculation part 102; and a coordinate conversion part 104. The coordinate conver...

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Bibliographische Detailangaben
Hauptverfasser: ARAKI TAKESHI, KITO MINORU, KOBAYASHI NAOTO, KONO MASAKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To improve the following of a primary magnetic flux with respect to a change in the primary magnetic flux command value.SOLUTION: A motor controller 1 has a coordinate conversion part 101; a first calculation part 102; and a coordinate conversion part 104. The coordinate conversion part 101 converts three-phase current[I] into an armature current[i] on a δc-γc rotation coordinate system for performing a primary magnetic flux control. The first calculation part 102 obtains the voltage command value[v*] on the δc-γc rotation coordinate system. The coordinate conversion part 104 coordinate-converts the voltage command value[v*] into a voltage command value[V*] on another coordinate system of the voltage applied to a rotary motor 3. When the first calculation part 102 obtains the voltage command value[v*], the first calculation part 102 calculates the voltage command value[v*] with a transient term corresponding to a change in the primary magnetic flux command value. 【課題】一次磁束指令値の変動に対する一次磁束の追従を向上させる。【解決手段】電動機制御装置1は、座標変換部101、第1計算部102、座標変換部104を備えている。座標変換部101は、三相電流[I]を、一次磁束制御を行うδc−γc回転座標系における電機子電流[i]に変換する。第1計算部102はδc−γc回転座標系における電圧指令値[v*]を求める。座標変換部104は、電圧指令値[v*]を座標変換して、回転電動機3に印加する電圧の他の座標系における電圧指令値[V*]へ変換する。第1計算部102は電圧指令値[v*]を求めるとき、一次磁束指令値の変動に応じた過渡項を盛り込んで計算する。【選択図】図1