Detection circuit for an active discharge circuit of an X-capacitor, related active discharge circuit, integrated circuit and method
US-10345348-B2 · Jul 9, 2019 · US
Method for controlling an electrical power supply network for an aircraft
US12040655B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12040655-B2 |
| Application number | US-202017603202-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 10, 2020 |
| Priority date | Apr 17, 2019 |
| Publication date | Jul 16, 2024 |
| Grant date | Jul 16, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
Methods for controlling an electrical power supply network for an aircraft, include pre-charging at least one capacitor in a normal operating mode when a gas turbine is available, pre-charging the at least one capacitor in a backup operating mode when the gas turbine is not available, and discharging the at least one capacitor at the end of use of the electrical power supply network when the at least one capacitor is charged.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling an electrical power supply network for an aircraft, the electrical power supply network comprising: at least one generator of a turbo-alternator of the aircraft adapted to provide a source of electrical energy from a gas turbine and comprising at least one stator associated with a rectifier, at least one distribution bus comprising at least one capacitor, at least one electric motor to be powered associated with an inverter, and at least one energy storage means, wherein the method comprises: pre-charging the at least one capacitor in a normal operating mode prior to power-on of the electrical power supply network when the at least one capacitor is discharged and the gas turbine is available; pre-charging the at least one capacitor in a backup operating mode prior to power-on of the electrical power supply network when the at least one capacitor is discharged and the gas turbine is not available; and discharging the at least one capacitor at an end of use of the electrical power supply network when the at least one capacitor is charged. 2. The method according to claim 1 , wherein, in the normal operating mode, pre-charging the at least one capacitor is carried out by rotating the gas turbine until a voltage of the generator reaches a predetermined threshold voltage, the turbine then being in nominal operating mode. 3. The method according claim 2 , wherein pre-charging the at least one capacitor is carried out by a diode bridge of the rectifier. 4. The method according to claim 3 , wherein the electrical power supply network is powered-on when the at least one capacitor is pre-charged. 5. The method according to claim 4 , wherein, when a voltage of the electrical power supply network is powered-on, a voltage of the distribution bus is adapted to a no-load voltage of at least one electrical storage device. 6. The method according to claim 1 , wherein in the backup operating mode, pre-charging the at least one capacitor is carried out by changing an electromotive force of the at least one electric motor and by controlling the inverter so as to transform a kinetic energy of the electric motor into electrical energy. 7. The method according to claim 1 , wherein discharging the at least one capacitor is carried out by dissipating electrical energy of the at least one capacitor by an impedance of the electrical power supply network. 8. The method according to claim 7 , wherein dissipation of the electrical energy of the at least one capacitor is obtained by connecting, in series, stator resistors of the at least one electric motor and of the at least one generator. 9. The method according to claim 8 , wherein pre-charging the at least one capacitor in the backup operating mode comprises a preliminary step of disconnecting at least one electrical storage device.
Assignees
Inventors
Classifications
for aircrafts · CPC title
Power installations for auxiliary purposes · CPC title
Equipment not otherwise provided for · CPC title
Electric power distribution systems onboard aircraft · CPC title
- H02J7/345Primary
using capacitors as storage or buffering devices · CPC title
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- What does patent US12040655B2 cover?
- Methods for controlling an electrical power supply network for an aircraft, include pre-charging at least one capacitor in a normal operating mode when a gas turbine is available, pre-charging the at least one capacitor in a backup operating mode when the gas turbine is not available, and discharging the at least one capacitor at the end of use of the electrical power supply network when the at…
- Who is the assignee on this patent?
- Safran Helicopter Engines
- What technology area does this patent fall under?
- Primary CPC classification H02J7/345. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 16 2024 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).