Method of calibrating a reluctance actuator assembly, reluctance actuator and lithographic apparatus comprising such reluctance actuator
US-10372045-B2 · Aug 6, 2019 · US
Single bus star connected reluctance drive and method
US9337767B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9337767-B2 |
| Application number | US-201414318170-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2014 |
| Priority date | Jun 28, 2013 |
| Publication date | May 10, 2016 |
| Grant date | May 10, 2016 |
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- Title
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Abstract
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A system and methods for operating a switched reluctance machine includes a controller, an inverter connected to the controller and to the switched reluctance machine, a hysteresis control connected to the controller and to the inverter, a set of sensors connected to the switched reluctance machine and to the controller, the switched reluctance machine further including a set of phases the controller further comprising a processor and a memory connected to the processor, wherein the processor programmed to execute a control process and a generation process.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling a switched reluctance machine comprising the steps of: determining a conduction band for an electrical phase angle for each phase of a set of phases; enforcing a reference current in each phase of the set of phases; determining a preemptive band for the electrical phase angle for each phase of the set of phases; increasing the reference current to a preemptive reference current in each phase of the set of phases; discharging the reference current from each phase of the set of phases; wherein the preemptive reference current (i pre *) is in accordance with: i pre * = 2 i * 1 + e L k k θ ′ ω + R k L k k t discharge ; wherein a time to discharge the current (y discharge ) is in accordance with: t discharge = - L j j L j j θ ′ ω + R j ln ( v dc v d c + i * ( L j j θ ′ ω + R j ) ) ; and, wherein currents of the switched reluctance machine during the time to discharge are in accordance with: i k ( t ) - i pre * e - L k k θ ′ ω +
Assignees
Inventors
Classifications
- H02P25/085Primary
Electricity · mapped topic
- H02P25/092Primary
Converters specially adapted for controlling reluctance motors · CPC title
wherein the converter comprises only one switch per phase · CPC title
- H02P25/086Primary
Commutation · CPC title
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- What does patent US9337767B2 cover?
- A system and methods for operating a switched reluctance machine includes a controller, an inverter connected to the controller and to the switched reluctance machine, a hysteresis control connected to the controller and to the inverter, a set of sensors connected to the switched reluctance machine and to the controller, the switched reluctance machine further including a set of phases the cont…
- Who is the assignee on this patent?
- Univ Texas
- What technology area does this patent fall under?
- Primary CPC classification H02P25/085. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 10 2016 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).