JP4411899B2 - 誘導電動機の制御方法 - Google Patents
誘導電動機の制御方法 Download PDFInfo
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- JP4411899B2 JP4411899B2 JP2003286339A JP2003286339A JP4411899B2 JP 4411899 B2 JP4411899 B2 JP 4411899B2 JP 2003286339 A JP2003286339 A JP 2003286339A JP 2003286339 A JP2003286339 A JP 2003286339A JP 4411899 B2 JP4411899 B2 JP 4411899B2
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- induction motor
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Description
i1d≒|v1|/{ω1(Lσ+Lm)} (2)
上記(2)式において、Lσ<<Lmであることを考慮し、さらに近似することにより、誘導電動機2の励磁インダクタンスLmは、下記(3)式で表すことができる。
Lm≒|v1|/(ω1・i1d) (3)
すなわち、誘導電動機2の励磁インダクタンス測定値Lm# はd軸電圧指令値v1d * とq軸電圧指令値v1q * とに基づく誘導電動機2の一次電圧ベクトルの大きさ|v1|と、一次角周波数設定値ω1 と、誘導電動機2のd軸成分電流i1dとから、上記(3)式に従って導出することができる。
Δi1=Δv1/{R1+RE+jωh(Lσ+LE)} (4)
上記(4)式から、誘導電動機2の漏れインダクタンスLσは下記(5)式となる。
Lσ#=(1/ωh)・{|(Δv1/Δi1)|} (6)
また、誘導電動機2の二次抵抗R2 の測定値R2 #の導出方法としては、下記特許文献2に記載されているものが知られている。
e2d #=v1d *−R1 #・i1d−pLσ#・i1d (7)
ここで、R1 #は上述の一次抵抗測定値、Lσ#は上述の漏れインダクタンス測定値、また、pは微分演算子である。
Claims (1)
- 可変電圧可変周波数の交流電力を発生する電力変換装置により駆動される誘導電動機において、
前記電力変換装置への電圧指令値とこの電圧指令値に基づいて前記誘導電動機に流れる一次電流とから、該誘導電動機の一次抵抗測定値と励磁インダクタンス測定値と漏れインダクタンス測定値と二次抵抗測定値とを導出し、これらの測定値から前記漏れインダクタンス測定値を次の(9)式により補正した前記誘導電動機の漏れインダクタンス演算値を演算し、この漏れインダクタンス演算値に基づき前記誘導電動機を可変速制御することを特徴とする誘導電動機の制御方法。
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JP2003286339A JP4411899B2 (ja) | 2003-08-05 | 2003-08-05 | 誘導電動機の制御方法 |
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JP2003286339A JP4411899B2 (ja) | 2003-08-05 | 2003-08-05 | 誘導電動機の制御方法 |
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JP2005057891A JP2005057891A (ja) | 2005-03-03 |
JP4411899B2 true JP4411899B2 (ja) | 2010-02-10 |
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JP2003286339A Expired - Fee Related JP4411899B2 (ja) | 2003-08-05 | 2003-08-05 | 誘導電動機の制御方法 |
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Families Citing this family (1)
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JP6194718B2 (ja) * | 2013-09-20 | 2017-09-13 | サンケン電気株式会社 | 誘導電動機の定数測定装置及び定数測定方法 |
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