Inverter control device and program
US-2024154561-A1 · May 9, 2024 · US
Control device for rotating electrical machine
US9748883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9748883-B2 |
| Application number | US-201615018273-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2016 |
| Priority date | Feb 25, 2015 |
| Publication date | Aug 29, 2017 |
| Grant date | Aug 29, 2017 |
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Abstract
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A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system. In a case in which the control device increases the d-axis current to generate a magnetic flux in a direction which is opposite to a direction to generate a magnetic flux by a field current, the control device gradually reduces the d-axis current during a predetermined period of time after increasing the d-axis current in the direction opposite to the direction to generate the magnetic flux by the field current.
First claim
Opening claim text (preview).
What is claimed is: 1. A control device for a rotating electrical machine, the rotating electrical machine comprising a rotor and a stator, the rotor comprising a field winding and the stator comprising an armature winding, the control device capable of adjusting a field current flowing in the field winding and an armature current flowing in the armature winding, wherein when the armature current flowing in the armature winding is expressed by using a current vector comprised of a…
Assignees
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Classifications
- H02P25/022Primary
Electricity · mapped topic
- H02P9/08Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9748883B2 cover?
- A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system.…
- Who is the assignee on this patent?
- Denso Corp
- What technology area does this patent fall under?
- Primary CPC classification H02P25/022. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 29 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).