US 12,145,445 B2
Synchronous machine drive control device, and vehicle equipped with synchronous machine subjected to drive control by said synchronous machine drive control device
Yasufumi Ogawa, Tokyo (JP); Yoshihiko Kimpara, Tokyo (JP); Daiki Matsuura, Tokyo (JP); and Jun Kitagawa, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 16/960,598
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Apr. 16, 2018, PCT No. PCT/JP2018/015660
§ 371(c)(1), (2) Date Jul. 8, 2020,
PCT Pub. No. WO2019/202625, PCT Pub. Date Oct. 24, 2019.
Prior Publication US 2020/0331335 A1, Oct. 22, 2020
Int. Cl. B60K 6/26 (2007.10); B60K 6/48 (2007.10); B60L 15/20 (2006.01); B60L 15/32 (2006.01); B60L 50/51 (2019.01); H02P 23/00 (2016.01); H02P 27/06 (2006.01); B60K 6/46 (2007.10)
CPC B60K 6/26 (2013.01) [B60K 6/48 (2013.01); B60L 15/20 (2013.01); B60L 15/32 (2013.01); B60L 50/51 (2019.02); H02P 23/00 (2013.01); H02P 27/06 (2013.01); B60K 2006/268 (2013.01); B60K 6/46 (2013.01); B60K 2006/4825 (2013.01); B60L 2220/14 (2013.01); B60L 2220/42 (2013.01); B60L 2240/429 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/43 (2013.01); B60Y 2300/60 (2013.01); B60Y 2400/604 (2013.01); B60Y 2400/61 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A synchronous machine drive control device that carries out a drive control of a synchronous machine, the synchronous machine drive control device comprising:
a current detection device that detects a three-phase current;
a power converter; and
a control device having a rotation angle correction amount calculator that calculates a correction amount of a rotation angle of the synchronous machine and controlling the power converter, wherein
the rotation angle correction amount calculator determines whether a rotation speed of the synchronous machine is equal to or greater than a predetermined value and outputs a three-phase short circuit command based on the rotation speed being equal to or greater than the predetermined value,
the correction amount of the rotation angle is calculated based on a current detected by the current detection device by a three-phase short circuit being implemented in a state wherein the synchronous machine is rotating, and
the three-phase short circuit is implemented based on the three-phase short circuit command being output by the rotation angle correction amount calculator and all of upper arm switching elements being turned off and all of lower arm switching elements being turned on in the power converter such that a q-axis current becomes practically zero and a negative d-axis current flows.