CN205811639U - A kind of non-maintaining on-pole switch DC power system - Google Patents
A kind of non-maintaining on-pole switch DC power system Download PDFInfo
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- CN205811639U CN205811639U CN201620699151.5U CN201620699151U CN205811639U CN 205811639 U CN205811639 U CN 205811639U CN 201620699151 U CN201620699151 U CN 201620699151U CN 205811639 U CN205811639 U CN 205811639U
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- conversion device
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- voltage conversion
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Abstract
This utility model relates to a kind of non-maintaining on-pole switch DC power system, and it is technically characterized by comprising the steps as follows: and includes 220V alternating current power supply, DC-AC conversion device, energy storage device, direct-current voltage conversion device, divide-shut brake large bulk capacitance, on-pole switch permanent-magnet breaker, detects and control auxiliary circuit and pole-mounted switch device；220V alternating current power supply series connection DC-AC conversion device, energy storage device and direct-current voltage conversion device, this DC-AC conversion device and direct-current voltage conversion device are also connected with detection and control auxiliary circuit；It is its charging that this DC-AC conversion device and direct-current voltage conversion device are also respectively connected with divide-shut brake large bulk capacitance, and it is its power supply that this DC-AC conversion device and direct-current voltage conversion device are also respectively connected with pole-mounted switch device.This utility model uses super capacitor as energy storage device, solves the problem using accumulator to need timed maintenance, it is achieved that the non-maintaining function of DC source operating system truly.
Description
Technical field
This utility model belongs to technical field of direct current power, a kind of non-maintaining on-pole switch DC source system
System.
Background technology
State Grid Corporation of China in 2009 propose the target building intelligent grid.The construction of intelligent grid improves control
The requirement of reliability, particularly power distribution network, owing to its control point is numerous, bad environments, it is desirable to DC control supply is highly reliable exempts from
The requirement safeguarded becomes inevitable.
At present, in DC power system, energy energy storage is mainly undertaken by accumulator, but the maximum that accumulator exists
Problem is that service life is short.Although the theoretical life-span of accumulator is more than 10 years, but due to improper use or ambient temperature
Change acutely, can result in actual life and shortens to 3-5, and the outdoor service life in North China only has 1～2 year；Store
After set of cells is discharged completely, again it is completely filled with and requires time for longer, reach more than 10 hours；When the concordance of accumulator is bad
Time, the performance indications of whole group storage battery can only be as the criterion with the accumulator that wherein performance is worst.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of reasonable in design, high safety, reliable
Property high the and non-maintaining on-pole switch DC power system of length in service life.
This utility model solves it and technical problem is that and take techniques below scheme to realize:
A kind of non-maintaining on-pole switch DC power system, including 220V alternating current power supply, DC-AC conversion device, energy storage
Device, direct-current voltage conversion device, divide-shut brake large bulk capacitance, on-pole switch permanent-magnet breaker, detect and control auxiliary electricity
Road and pole-mounted switch device；Described 220V alternating current power supply series connection DC-AC conversion device, energy storage device and DC voltage turn
Changing device, this DC-AC conversion device and direct-current voltage conversion device are also connected with detection and control auxiliary circuit；This alternating current-direct current turns
It is its charging that changing device and direct-current voltage conversion device are also respectively connected with divide-shut brake large bulk capacitance, this DC-AC conversion device
And direct-current voltage conversion device be also respectively connected with pole-mounted switch device be its power supply.
Described energy storage device is super capacitor.
Advantage of the present utility model and good effect be:
1, this power-supply system uses super capacitor as energy storage device, it is to avoid use accumulator to need lacking of timed maintenance
Point, it is achieved that the non-maintaining function of DC source operating system truly.
2, this power-supply system is when energy storage device voltage reaches the startup voltage of direct-current voltage conversion device, DC converting electricity
Road output two-way unidirectional current, respectively divide-shut brake large bulk capacitance and pole-mounted switch device are powered.
3, realize seamless link between the DC-AC conversion device in this power-supply system and direct-current voltage conversion device, having
In the case of alternating current, divide-shut brake large bulk capacitance is powered by DC-AC conversion device with pole-mounted switch device, alternating current
Being powered by direct-current voltage conversion device in the case of stopping power supply, handoff procedure is very close to each other.
4, detect during whole power work and control auxiliary circuit can be to AC-DC conversion for this power-supply system
Device, energy storage device, the duty of DC voltage converting circuit gather data, and according to the data collected to DC voltage
Conversion equipment output control signal.
Accompanying drawing explanation
Fig. 1 is system connection side's block diagram of the present utility model；
In figure, 1:220V alternating current power supply；2: DC-AC conversion device；3: energy storage device；4: direct-current voltage conversion device；5:
Divide-shut brake large bulk capacitance；6: on-pole switch permanent-magnet breaker；7: detect and control auxiliary circuit；8: pole-mounted switch fills
Put.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model embodiment is further described:
A kind of non-maintaining on-pole switch DC power system, as it is shown in figure 1, include that 220V alternating current power supply 1, alternating current-direct current turn
Changing device 2, energy storage device 3, direct-current voltage conversion device 4, divide-shut brake large bulk capacitance 5, on-pole switch permanent-magnet breaker 6,
Detect and control auxiliary circuit 7 and pole-mounted switch device 8.Wherein, 220V alternating current power supply 1 connect DC-AC conversion device 2,
Energy storage device 3 and direct-current voltage conversion device 4；This DC-AC conversion device 2 and direct-current voltage conversion device 4 be also connected with detection and
Control auxiliary circuit 7 to be used for detecting, controlling various data；This DC-AC conversion device 2 also with divide-shut brake with large bulk capacitance 5 and
Pole-mounted switch device 8 is connected, and this direct-current voltage conversion device 4 is also connected with on divide-shut brake large bulk capacitance 5 and post opening
Close and control device 8；This divide-shut brake large bulk capacitance 5 and pole-mounted switch device 8 connect on-pole switch permanent-magnet breaker 6.
Energy storage device 3 in this power-supply system uses super capacitor.
In the present embodiment, the unidirectional current of DC-AC conversion device three kinds of electric pressures of output, the first via is energy storage device
Charging, the second tunnel is that divide-shut brake large bulk capacitance is charged, the 3rd tunnel and for on-pole switch permanent-magnet breaker control fill
Put power supply.The unidirectional current of direct-current voltage conversion device output two-way electric pressure, the first via is that divide-shut brake large bulk capacitance enters
Row charging, the second tunnel is that on-pole switch permanent-magnet breaker control device is powered.
Operation principle in utility model is: 220V alternating current power supply 1 inputted to DC-AC conversion device 2, output
DC110V is that divide-shut brake large bulk capacitance is powered, and output DC24V is that pole-mounted switch device is powered, output
DC63V unidirectional current is that energy storage device 3 charges.When energy storage device 3 reaches the startup voltage of direct-current voltage conversion device 4, direct current
It is that divide-shut brake large bulk capacitance is powered that voltage conversion device 4 exports DC110V, and output DC24V is pole-mounted switch device
Being powered, the confession between them electrically connects as automatically changing, very close to each other.Alternating current-direct current is turned by detection and control auxiliary circuit 7
Changing device 2, the duty of direct-current voltage conversion device 4 gather data, and change DC voltage according to the data collected
Device output control signal.
It is emphasized that embodiment described in the utility model is illustrative rather than determinate, therefore this reality
By the novel embodiment including and being not limited to described in detailed description of the invention, every new according to this practicality by those skilled in the art
Other embodiments that the technical scheme of type draws, also belong to the scope of this utility model protection.
Claims (2)
1. a non-maintaining on-pole switch DC power system, it is characterised in that: include 220V alternating current power supply, AC-DC conversion
Device, energy storage device, direct-current voltage conversion device, divide-shut brake large bulk capacitance, on-pole switch permanent-magnet breaker, detect and control
Auxiliary circuit processed and pole-mounted switch device；Described 220V alternating current power supply series connection DC-AC conversion device, energy storage device and straight
Stream voltage conversion device, this DC-AC conversion device and direct-current voltage conversion device are also connected with detection and control auxiliary circuit；Should
It is its charging that DC-AC conversion device and direct-current voltage conversion device are also respectively connected with divide-shut brake large bulk capacitance, this alternating current-direct current
It is its power supply that conversion equipment and direct-current voltage conversion device are also respectively connected with pole-mounted switch device.
One the most according to claim 1 non-maintaining on-pole switch DC power system, it is characterised in that: described energy storage
Device is super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699151.5U CN205811639U (en) | 2016-07-04 | 2016-07-04 | A kind of non-maintaining on-pole switch DC power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699151.5U CN205811639U (en) | 2016-07-04 | 2016-07-04 | A kind of non-maintaining on-pole switch DC power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811639U true CN205811639U (en) | 2016-12-14 |
Family
ID=58139725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620699151.5U Expired - Fee Related CN205811639U (en) | 2016-07-04 | 2016-07-04 | A kind of non-maintaining on-pole switch DC power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811639U (en) |
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2016
- 2016-07-04 CN CN201620699151.5U patent/CN205811639U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |