CN219717939U - Uninterrupted switching power supply structure of secondary power supply main bus bar - Google Patents
Uninterrupted switching power supply structure of secondary power supply main bus bar Download PDFInfo
- Publication number
- CN219717939U CN219717939U CN202320753064.3U CN202320753064U CN219717939U CN 219717939 U CN219717939 U CN 219717939U CN 202320753064 U CN202320753064 U CN 202320753064U CN 219717939 U CN219717939 U CN 219717939U
- Authority
- CN
- China
- Prior art keywords
- contactor
- bus bar
- tru1
- main bus
- tru2
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 230000009466 transformation Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model belongs to the field of design of aircraft power distribution systems, and particularly relates to a secondary power supply main bus bar uninterrupted conversion power supply structure, which comprises a transformer rectifier TRU1, a transformer rectifier TRU2, a storage battery pack and a direct current distribution control box, wherein the direct current distribution control box comprises a contactor TRU1, a storage battery pack contactor, a contactor TRU2, a connecting contactor TRU1, a connecting contactor TRU2 and a parallel contactor TRU, the transformer rectifier TRU1 is connected with the contactor TRU1, the transformer rectifier TRU2 is connected with the contactor TRU2, the storage battery pack is connected with the storage battery pack contactor, the contactor TRU1 is connected with a main bus bar PP1, the contactor TRU2 is connected with an emergency bus bar PP2, the main bus bar PP1 is connected with the emergency bus bar PP3 through the connecting contactor TRU1, the main bus bar PP2 is connected with the emergency bus bar PP3 through the connecting contactor TRU2, and the main bus bar PP2 is connected with the main bus bar PP2 through the contact with the emergency bus bar TRU.
Description
Technical Field
The utility model belongs to the field of design of aircraft power distribution systems, and particularly relates to a secondary power supply main bus bar uninterrupted switching power supply structure.
Background
At present, a large-capacity main alternating current power supply system is adopted in a domestic medium-and large-sized helicopter power supply system, wherein a main power supply is an alternating current power supply system, and a secondary power supply is a direct current power supply system. The secondary power supply uses two voltage Transformation Rectifiers (TRUs) to convert the three-phase 115V alternating current into 28V direct current, and the output direct current power supply adopts simple and easy-to-realize conversion power supply operation. However, the bus bar switching is interrupted in the switching power supply mode, and the system disturbance is large when the high-power equipment is loaded and unloaded.
Disclosure of Invention
The purpose of the utility model is that: a TRU parallel contactor is designed between main bus bars, and when a voltage Transformation Rectifier (TRU) is switched on or off, the TRU parallel contactor is controlled to be switched on logic during power supply conversion, so that the uninterrupted power supply capability between the main bus bars is realized.
The technical scheme of the utility model is as follows:
the utility model provides a secondary power source main bus bar uninterrupted conversion power supply structure, includes transformer rectifier TRU1, transformer rectifier TRU2, storage battery and direct current distribution control box, direct current distribution control box include contactor TRU1, battery contactor, contactor TRU2, link to each other contactor TRU1, link to each other contactor TRU2 and parallelly connected contactor TRU, including transformer rectifier TRU1 with contactor TRU1 be connected, transformer rectifier TRU2 is connected with contactor TRU2, battery is connected with the battery contactor, main bus bar PP1 is connected to contactor TRU1, main bus bar PP2 is connected to contactor TRU2, battery contactor connects emergency bus bar, be connected through linking to each other contactor TRU1 between main bus bar PP1 and the emergency bus bar PP3, be connected through linking to each other contactor TRU2 between main bus bar PP2 and the emergency bus bar PP3, be connected through parallelly connected contactor TRU between main bus bar PP2 and the main bus bar PP 2.
Further, the transformer rectifier TRU1 output voltage is 28.5V.
Further, the transformer rectifier TRU2 output voltage is 28.5V.
Further, the transformer rectifier TRU1 and the transformer rectifier TRU2 have a capacity of 400A.
Further, the battery pack output voltage was 28.5V.
Further, the battery capacity was 24Ah.
The utility model has the beneficial effects that: a TRU parallel contactor is designed between main bus bars, and when a voltage Transformation Rectifier (TRU) is switched on or off, the TRU parallel contactor is controlled to be switched on logic during power supply conversion, so that the uninterrupted power supply capability between the main bus bars is realized.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the secondary power source main bus bar uninterrupted conversion power supply structure comprises a transformer rectifier TRU1, a transformer rectifier TRU2, a storage battery pack and a direct current distribution control box, wherein the direct current distribution control box comprises a contactor TRU1, a storage battery pack contactor, a contactor TRU2, a connecting contactor TRU1, a connecting contactor TRU2 and a parallel contactor TRU, the transformer rectifier TRU1 is connected with the contactor TRU1, the transformer rectifier TRU2 is connected with the contactor TRU2, the storage battery pack is connected with the storage battery pack contactor, the contactor TRU1 is connected with a main bus bar PP1, the contactor TRU2 is connected with a main bus bar PP2, the storage battery pack contactor is connected with an emergency bus bar, the main bus bar PP1 is connected with the emergency bus bar PP3 through the connecting contactor TRU2, and the main bus bar PP2 is connected with the main bus bar PP2 through the connecting contactor TRU 2.
The utility model provides a secondary power supply main bus bar uninterrupted switching power supply design, wherein TRU parallel contactors are designed between main bus bars, and when a Transformer Rectifier (TRU) is switched on or off, the switching logic of the TRU parallel contactors is controlled during power supply switching, so that the uninterrupted power supply capability between the main bus bars is realized.
1. System composition
1) A400A transformer rectifier (TRU 1) (1) outputs 28.5V DC power for use by the powered device on the main bus bar 1 (PP 1).
2) A400A transformer rectifier (TRU 2) (2) outputs 28.5V DC power for use by the powered device on the main bus bar 2 (PP 2).
3) A24 Ah storage Battery (BAT) (3) outputs 24V direct current power for use by electric equipment on the emergency bus bar (PP 3).
4) The direct current distribution control box is provided with a main bus bar 1 (PP 1), a main bus bar 2 (PP 2), an emergency bus bar (PP 3), a TRU1 contactor (4), a TRU2 contactor (5) and a BAT contactor (6), a TRU1 connecting contactor (7), a TRU2 connecting contactor (8) and a TRU parallel contactor (9), so that the control and protection of a secondary power distribution system are realized.
2. Main technical index of system
1) Voltage transformation rectifier
Rated voltage: 28 V.+ -. 0.5V
Rated capacity: 400A
The protection function: has the protection functions of overvoltage, undervoltage, overtemperature faults and the like
2) Storage battery pack
Rated voltage: 24V
Rated capacity: 24Ah
Termination voltage: 20V
The protection function: has the protection functions of overcharge, protection circuit fault, overtemperature fault and the like
3. Principle of system operation
The secondary power supply system adopts two voltage transformation rectifiers to provide a 28V direct current power supply, and the two voltage transformation rectifiers independently supply power under a normal working state and are mutually converted when in fault.
1) TRU1 power supply to TRU1, 2 power supply
TRU1 is powered separately, and main bus bar 1 (PP 1) and main bus bar 2 (PP 2) are both powered by TRU 1. When TRU2 is turned on, main bus bar 2 (PP 2) will switch to TRU2 power, main bus bar 1 (PP 1) continues to be powered by TRU1, so there is a switching power interruption to main bus bar 2 (PP 2).
And a TRU parallel contactor is designed in the direct-current distribution control box, after TRU2 is connected, the TRU parallel contactor is kept to be connected, so that the main bus bar 1 and the main bus bar 2 are connected in parallel for a short time, and when t=200 ms after the TRU2 contactor is connected, the TRU parallel contactor is disconnected again, so that uninterrupted power supply conversion of the main bus bar 2 (PP 2) is realized.
2) TRU2 power supply to TRU1, 2 power supply
TRU2 is powered separately, and both main bus bar 1 (PP 1) and main bus bar 2 (PP 2) are powered by TRU 2. When TRU1 is turned on, main bus bar 1 (PP 1) will switch to TRU1 power, main bus bar 2 (PP 2) continues to be powered by TRU2, so there is a switching power interruption to main bus bar 1 (PP 1).
And a TRU parallel contactor is designed in the direct-current distribution control box, after TRU1 is connected, the TRU parallel contactor is kept to be connected, so that the main bus bar 1 and the main bus bar 2 are connected in parallel for a short time, and when t=200 ms after the TRU1 contactor is connected, the TRU parallel contactor is disconnected again, so that uninterrupted power supply conversion of the main bus bar 1 (PP 1) is realized.
3) TRU1, 2 power supply to TRU1 power supply
TRU1, 2 are independently powered, main bus bar 1 (PP 1) is powered by TRU1, and main bus bar 2 (PP 2) is powered by TRU 2. When TRU2 is disconnected, main bus bar 2 (PP 2) will switch to TRU1 power, main bus bar 1 (PP 1) continues to be powered by TRU1, so there is a switching power interruption to main bus bar 2 (PP 2).
The TRU parallel contactor is designed in the direct-current distribution control box, the TRU parallel contactor is connected in a t=200 ms time before TRU2 is disconnected, so that the main bus bar 1 and the main bus bar 2 are connected in parallel for a short time, and the TRU parallel contactor is disconnected again in a t=200 ms time after the TRU2 contactor is connected, so that uninterrupted conversion power supply of the main bus bar 2 (PP 2) is realized.
4) TRU1, 2 power supply to TRU2 power supply
TRU1, 2 are independently powered, main bus bar 1 (PP 1) is powered by TRU1, and main bus bar 2 (PP 2) is powered by TRU 2. When TRU1 is disconnected, main bus bar 1 (PP 1) will switch to TRU2 power, main bus bar 2 (PP 2) continues to be powered by TRU2, so there is a switching power interruption to main bus bar 1 (PP 1).
The TRU parallel contactor is designed in the direct-current distribution control box, the TRU parallel contactor is turned on at t=200 ms time before TRU1 is detected to be turned off, so that the main bus bar 1 and the main bus bar 2 are connected in parallel for a short time, the TRU parallel contactor is turned off again at t=200 ms time after TRU1 contactor is detected to be turned on, and uninterrupted conversion power supply of the main bus bar 1 (PP 1) is realized.
5) Emergency bus bar power supply
The emergency bus bar (PP 3) is directly powered by the storage battery pack, and when the TRU1 and the TRU2 are disconnected, the storage battery pack can be used for realizing uninterrupted power supply.
The foregoing is merely a detailed description of the utility model, which is not a matter of routine skill in the art. However, the scope of the present utility model is not limited thereto, and any changes or substitutions that can be easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. The protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a secondary power source main bus bar uninterrupted conversion power supply structure which characterized in that includes transformer rectifier TRU1, transformer rectifier TRU2, storage battery and direct current distribution control box, direct current distribution control box include contactor TRU1, storage battery contactor, contactor TRU2, link to each other contactor TRU1, link to each other contactor TRU2 and parallelly connected contactor TRU, including transformer rectifier TRU1 with contactor TRU1 be connected, transformer rectifier TRU2 is connected with contactor TRU2, storage battery is connected with the storage battery contactor, contactor TRU1 connects main bus bar PP1, contactor TRU2 connects main bus bar PP2, the emergency bus bar is connected to the storage battery contactor, connect through link to each other contactor TRU1 between main bus bar PP1 and the emergency bus bar PP3, connect through link to each other contactor TRU2 between main bus bar PP2 and the emergency bus bar PP2 through parallelly connected contactor TRU 2.
2. The secondary power source main bus bar uninterruptible power supply structure according to claim 1, wherein the output voltage of the transformer rectifier TRU1 is 28.5V.
3. The secondary power source main bus bar uninterruptible power supply structure according to claim 1, wherein the output voltage of the transformer rectifier TRU2 is 28.5V.
4. The uninterruptible power supply structure of claim 1, wherein the transformer rectifier TRU1 and the transformer rectifier TRU2 have a capacity of 400A.
5. The secondary power source main bus bar uninterruptible power supply structure according to claim 1, wherein the output voltage of the storage battery is 28.5V.
6. The secondary power source main bus bar uninterruptible power supply structure according to claim 1, wherein the capacity of the battery pack is 24Ah.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320753064.3U CN219717939U (en) | 2023-04-07 | 2023-04-07 | Uninterrupted switching power supply structure of secondary power supply main bus bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320753064.3U CN219717939U (en) | 2023-04-07 | 2023-04-07 | Uninterrupted switching power supply structure of secondary power supply main bus bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219717939U true CN219717939U (en) | 2023-09-19 |
Family
ID=87979865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320753064.3U Active CN219717939U (en) | 2023-04-07 | 2023-04-07 | Uninterrupted switching power supply structure of secondary power supply main bus bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219717939U (en) |
-
2023
- 2023-04-07 CN CN202320753064.3U patent/CN219717939U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109217458B (en) | Hybrid main power supply system of electric ship and control method | |
| CN110011408B (en) | Mobile emergency power supply system and working method thereof | |
| CN202276284U (en) | Electric power-used AC/DC integrated power supply device | |
| CN105490392B (en) | A kind of the black starting-up control system and method for energy-storage system | |
| CN206712539U (en) | A kind of marine low-pressure continuous-current plant based on the autonomous management of multiple batteries | |
| CN115693907A (en) | Non-switching uninterrupted railway signal power circuit | |
| CN113644718A (en) | Electrical architecture and control method of pure electric pleasure boat driving system | |
| CN211127291U (en) | Helicopter direct current distribution system | |
| CN210416940U (en) | Marine power system for water quality monitoring | |
| CN205791773U (en) | Non-interrupted power supply system | |
| CN102214918A (en) | High-reliability power supply system, method and frequency converter system | |
| CN219717939U (en) | Uninterrupted switching power supply structure of secondary power supply main bus bar | |
| CN203339768U (en) | Backup energy storage power supply for photovoltaic and mains supply complementary input | |
| CN203326701U (en) | Automatic control converting power source preventing power interruption and transient voltage sag for production equipment | |
| CN113315220A (en) | Uninterrupted direct current power supply device and control method | |
| CN116599203B (en) | Power exchange station and uninterrupted power supply method thereof | |
| CN215580383U (en) | Marine power supply system | |
| CN218526108U (en) | Control system of energy storage battery container | |
| CN217445082U (en) | Power distribution protection system | |
| CN220139245U (en) | A and off-grid auto-change over device for energy storage system | |
| CN215267684U (en) | Storage battery core accommodating and discharging device | |
| CN219938026U (en) | Seamless switching alternating current power distribution circuit | |
| CN204706942U (en) | Direct current system is electric supply installation and DC suppling equipment again | |
| CN219843447U (en) | Battery charge-discharge control device and uninterruptible power supply system | |
| CN211405584U (en) | Uninterrupted power supply control circuit of energy storage control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |