CN207184142U - A kind of inverter straight-flow system automatic switching control equipment - Google Patents
A kind of inverter straight-flow system automatic switching control equipment Download PDFInfo
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- CN207184142U CN207184142U CN201720958790.3U CN201720958790U CN207184142U CN 207184142 U CN207184142 U CN 207184142U CN 201720958790 U CN201720958790 U CN 201720958790U CN 207184142 U CN207184142 U CN 207184142U
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- power supply
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Abstract
The utility model discloses a kind of inverter straight-flow system automatic switching control equipment, conventional power supply, controller system is connected between stand-by power supply, controller system includes DSP Processor and the power circuit electrically connected with DSP Processor input, current detection circuit, key circuit, DSP Processor output end electrically connects switching circuit, display circuit, current detection circuit input and conventional power supply, stand-by power supply connects, conventional power supply, stand-by power supply output end is connected with switching circuit, switching circuit is connected with AC load, DSP Processor is stated also to electrically connect with communication module, communication module is connected with monitor terminal.The utility model is using DSP as control core; conventional and standby two-way power supply inverter input direct-current is detected by current detection circuit; the switching of two-way power supply is carried out by relay circuit; the electric quantity loss brought when fault of converter is shut down is reduced, control accuracy height, good reliability, cost are relatively low.
Description
Technical field
It the utility model is related to power control technology field, more particularly to a kind of inverter straight-flow system automatic switchover dress
Put.
Background technology
With developing rapidly for national economy, people are marked to power supply continuity, the requirement more and more higher of reliability by country
Quasi- GB50052《Code for design of electric power supply systems》Regulation, first order load are powered with two level burden requirement by two-way power supply, and for
Especially important load in first order load, in addition to two-way power supply is required, it is necessary to set up emergency power supply, forbid to connect other loads
Enter emergency power supply system, dual power supply system has become the device that important events must be equipped with.
Found by the market survey to dual power supply system, 70% failure goes out in controller, controller quality
Quality directly influences the performance of system.Dual power supply system in the market is mainly controlled by single-chip microcomputer, processing speed
Slowly, precision is low, poor real；High performance controller relies primarily on import, but there is difference external supply standard, power supply environment and the country
Different, external double power-supply system can not farthest embody its superior function, and expensive, cost performance is low.
Utility model content
In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of inverter
Straight-flow system automatic switching control equipment, using DSP as control core, by current detection circuit to conventional and standby two-way power supply
Inverter input direct-current detected, the switching of two-way power supply is carried out by relay circuit, and real time information is passed through into people
Machine interactive unit is shown that the controller also realizes the communication with remote monitoring terminal by communication module, remote so as to realize
Range monitoring.
To achieve the above object, the utility model provides a kind of inverter straight-flow system automatic switching control equipment, including normal
With power supply, stand-by power supply, the conventional power supply includes A inverters, A DC master rows, the A breakers being sequentially connected in series, described standby
Power supply includes B inverters, B DC master rows, the B breakers being sequentially connected in series, it is characterised in that：The A breakers, B breakers it
Between connect controller system, the controller system includes DSP Processor and power supply electrically connect with DSP Processor input is electric
Road, current detection circuit, key circuit, the DSP Processor output end electrical connection switching circuit, display circuit, the electric current
Detection circuit input end is connected with conventional power supply, stand-by power supply, and the conventional power supply, stand-by power supply output end and switching circuit connect
Connect, the switching circuit is connected with AC load, and the DSP Processor of stating also electrically connects with communication module, the communication module
It is connected with monitor terminal.
A kind of above-mentioned inverter straight-flow system automatic switching control equipment, it is characterised in that：The current detection circuit is suddenly
That sensor and the operational amplifier being connected with hall sensor output.
A kind of above-mentioned inverter straight-flow system automatic switching control equipment, it is characterised in that：The communication module to be wired or
Person's wireless communication module.
A kind of above-mentioned inverter straight-flow system automatic switching control equipment, it is characterised in that：The DSP Processor is
TMS320F2812 chips.
A kind of above-mentioned inverter straight-flow system automatic switching control equipment, it is characterised in that：The Hall sensor is
UGN23501M chips.
A kind of above-mentioned inverter straight-flow system automatic switching control equipment, it is characterised in that：The operational amplifier uses
AD522 chips.
The beneficial effects of the utility model are：
The utility model uses DSP as control core, by current detection circuit to conventional and standby two-way power supply
Inverter input direct-current is detected, and the switching of two-way power supply is carried out by relay circuit, when reducing fault of converter shutdown
The electric quantity loss brought, the generated energy in power station is improved, and real time information is shown by man-machine interaction unit, the controller
The communication with remote monitoring terminal is also realized by communication module, so as to realize remote monitoring.Control accuracy height, good reliability,
Cost is relatively low.
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is integral structure layout's figure of the present utility model.
Fig. 2 is controller system structured flowchart of the present utility model.
Fig. 3 is current detection circuit structured flowchart of the present utility model.
Fig. 4 is switching circuit schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, 2, a kind of inverter straight-flow system automatic switching control equipment, including conventional power supply 2, stand-by power supply 3, institute
A inverters, A DC master rows, A breakers that conventional power supply 2 includes being sequentially connected in series are stated, the stand-by power supply 3 includes being sequentially connected in series
B inverters, B DC master rows, B breakers, it is characterised in that：Controller system is connected between the A breakers, B breakers,
The controller system includes DSP Processor 1 and the power circuit 6 electrically connected with the input of DSP Processor 1, current detecting electricity
Road 7, key circuit 9, the output end of the DSP Processor 1 electrical connection switching circuit 4, display circuit 8, the current detection circuit 7
Input is connected with conventional power supply 2, stand-by power supply 3, and the conventional power supply 2, the output end of stand-by power supply 3 are connected with switching circuit 4,
The switching circuit 4 is connected with AC load 5, and the DSP Processor 1 also electrically connects with communication module 10, the communication module
10 are connected with monitor terminal 11.
In the present embodiment, the current detection circuit 7 is Hall sensor and the fortune being connected with hall sensor output
Calculate amplifier.Wherein, the Hall sensor is UGN23501M chips, and the operational amplifier uses AD522 chips.Such as Fig. 3
Shown, RP1 is the linearity regulation of Hall sensor and eliminates unbalance voltage potentiometer；RP2 is AD522 zero potentiometers；
RP3 is tune gain potentiometer；C1, C2 are that dc source (± 15V) filters off higher hamonic wave and anti-interference condenser；The 13 of AD522
Pin must be connected with shielding end, to improve antijamming capability.When AD522 gains K is 100, the AD522 linearity is
0.005%；Common-mode rejection ratio is 100dB.Circuit linearity degree is so entirely detected 7.5% or so, therefore the circuit linearity degree
Well.
In the present embodiment, the communication module 10 is wired or wireless communication module.Wire communication module such as CAN is total
Line, RS485 buses, are finally connected with remote monitoring computer.Wireless communication module such as WIFI, 4G module, can be supervised with mobile phone
Control terminal connects.
In the present embodiment, the DSP Processor 1 is TMS320F2812 chips.TMS320F2812 is 32 fixed point micro-controls
Unit (MCU) processed, dominant frequency is up to 150MHz；Possess the EBIs such as I2C, SPI, CAN, PWM, suitable for various control class industry
Equipment；Small volume, performance are strong, portability is high, while are applied to a variety of handheld devices, meet industrial environment application.
The utility model uses DSP as control core, by current detection circuit to conventional and standby two-way power supply
Inverter input direct-current is detected, by the switching circuit formed based on triode Q1, relay K1, as shown in figure 4, DSP
Whether is output pin transmission low and high level control triode Q1 conducting, and then control relay works.4 and 1 structure of relay
Formed with 2 normally opened into normally closed, 4, during relay adhesive, 4 will be with 2 conductings.
Operation principle of the present utility model is：
Invertor operation, DC loop are connected, and DC loop has electric current by the way that electric current is not 0；Fault of converter, direct current
Loop is not switched on, electric current 0.If B inverters are because of disorderly closedown.Current detection circuit detects that B inverters direct current inputs
Electric current is 0A, and DSP Processor now sends high level instruction to the R10 of Fig. 4 switching circuit, triode Q1 conductings, relay
K1 adhesives, relay K1 4 pin will turn on 2 pin, and A DC master rows are connected relay K1 4 pin with B DC master rows respectively in advance
The conducting of A DC master rows and B DC master rows will be achieved that with 2 pin, relay K1 adhesives, now A inverters carry itself with
And B inverters DC load operation.
When current detection circuit detects that current value reaches A inverters and allows maximum direct current input value, DSP Processor
Low level instruction is now sent to be failure to actuate to the R10 of Fig. 4 switching circuit, triode Q1 cut-offs, relay K1, relay K1's
4 pin will disconnect with 2 pin, and 4 pin that A DC master rows are connected relay K1 with B DC master rows respectively in advance will be with 2 pin, now only A
The lateral circuit of inverter one works, and avoids A inverter operating currents are excessive from burning out equipment.
Operation principle is same as above when opposite A fault of converter is shut down, and so as to reach the effect of inverter automatic switchover, is reduced inverse
Become the electric quantity loss brought during device disorderly closedown, improve the generated energy in power station.In addition, monitoring information also passes through man-machine interaction in real time
Unit is shown that the controller also realizes the communication with remote monitoring terminal by communication module, so as to realize remote monitoring.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member makes many modifications and variations without creative work can according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (6)
1. a kind of inverter straight-flow system automatic switching control equipment, including conventional power supply (2), stand-by power supply (3), the conventional power supply
(2) A inverters, A DC master rows, the A breakers being sequentially connected in series are included, the stand-by power supply (3) includes the B inversions being sequentially connected in series
Device, B DC master rows, B breakers, it is characterised in that：Controller system, the control are connected between the A breakers, B breakers
Device system processed includes DSP Processor (1) and the power circuit (6) electrically connected with DSP Processor (1) input, current detecting electricity
Road (7), key circuit (9), DSP Processor (1) the output end electrical connection switching circuit (4), display circuit (8), the electricity
Current detection circuit (7) input is connected with conventional power supply (2), stand-by power supply (3), the conventional power supply (2), stand-by power supply (3)
Output end is connected with switching circuit (4), and the switching circuit (4) is connected with AC load (5), described to state DSP Processor (1) also
Electrically connected with communication module (10), the communication module (10) is connected with monitor terminal (11).
A kind of 2. inverter straight-flow system automatic switching control equipment as claimed in claim 1, it is characterised in that：The current detecting
Circuit (7) is Hall sensor and the operational amplifier being connected with hall sensor output.
A kind of 3. inverter straight-flow system automatic switching control equipment as claimed in claim 1, it is characterised in that：The communication module
(10) it is wired or wireless communication module.
A kind of 4. inverter straight-flow system automatic switching control equipment as claimed in claim 1, it is characterised in that：The DSP processing
Device (1) is TMS320F2812 chips.
A kind of 5. inverter straight-flow system automatic switching control equipment as claimed in claim 2, it is characterised in that：The hall sensing
Device is UGN23501M chips.
A kind of 6. inverter straight-flow system automatic switching control equipment as claimed in claim 2, it is characterised in that：The operation amplifier
Device uses AD522 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958790.3U CN207184142U (en) | 2017-08-02 | 2017-08-02 | A kind of inverter straight-flow system automatic switching control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958790.3U CN207184142U (en) | 2017-08-02 | 2017-08-02 | A kind of inverter straight-flow system automatic switching control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184142U true CN207184142U (en) | 2018-04-03 |
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ID=61745246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720958790.3U Active CN207184142U (en) | 2017-08-02 | 2017-08-02 | A kind of inverter straight-flow system automatic switching control equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922481A (en) * | 2021-09-02 | 2022-01-11 | 南通职业大学 | Multi-power-supply automatic switching protection and monitoring system |
| CN113922481B (en) * | 2021-09-02 | 2024-05-14 | 南通职业大学 | Protection and monitoring system for automatic switching of multiple power supplies |
-
2017
- 2017-08-02 CN CN201720958790.3U patent/CN207184142U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922481A (en) * | 2021-09-02 | 2022-01-11 | 南通职业大学 | Multi-power-supply automatic switching protection and monitoring system |
| CN113922481B (en) * | 2021-09-02 | 2024-05-14 | 南通职业大学 | Protection and monitoring system for automatic switching of multiple power supplies |
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