CN107093894B - A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system - Google Patents
A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system Download PDFInfo
- Publication number
- CN107093894B CN107093894B CN201610089978.9A CN201610089978A CN107093894B CN 107093894 B CN107093894 B CN 107093894B CN 201610089978 A CN201610089978 A CN 201610089978A CN 107093894 B CN107093894 B CN 107093894B
- Authority
- CN
- China
- Prior art keywords
- constant
- voltage
- current
- underwater
- circuit
- 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 title claims abstract description 87
- 238000004891 communication Methods 0.000 claims abstract description 39
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 230000006698 induction Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000033228 biological regulation Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 101100326725 Flaveria trinervia PPCB gene Proteins 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/04—Constant-current supply systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/02—Arrangements for reducing harmonics or ripples
-
- H02J13/0017—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The present invention relates to a kind of underwater constant current constant voltage conversion equipments suitable for seabed constant-current supply system, including main power conversion modules, fictitious load module, communication control module and over-voltage over-current protection module；Wherein, main power conversion modules are used to high voltage direct current constant current Input transformation be constant low pressure output, fictitious load module is used to guarantee the constant power output of underwater constant current constant voltage conversion equipment, fictitious load module is in parallel with main power conversion modules, when main power conversion modules export failure, constant power output is realized by control fictitious load module；Communication control module remotely controls underwater constant current constant voltage conversion equipment for bank base station, and long-range control includes: adjustment output power, monitoring underwater power status information；Over-voltage over-current protection module is used to prevent the moment over-voltage that sea cable short circuit generates in bypass power supply, rush of current of surging, geomagnetic induction current impact and reverse surge impact.
Description
Technical field
The present invention relates to the power supply-distribution system fields of undersea long high voltage direct current constant current, more particularly to one kind to be suitable for seabed
The underwater constant current constant voltage conversion equipment of the long-term highly reliable work of observation grid distant-range high voltage direct current constant-current supply system.
Background technique
Submarine observation system is typically referred to by bank base station, optoelectronic composite cable, underwater host node and underwater monitoring equipment group
At sea-bed area can be carried out long-term real-time detection, transmission data, collection analysis sample and in situ tested oneself
Dynamic network system, is the third observation platform of the generally acknowledged human detection ocean of international ocean.Submarine observation system it is underwater
Power supply-distribution system is the important composition of seabed observation network, is faced with high seabed maintenance cost, the dispersion of underwater node, for fax
The unfavorable factors such as defeated distance, transimission power are continuous, working environment is poor, also face single host node or short circuit event occurs in sea cable
The challenge such as barrier.
Currently, undersea long power supply and distribution mode mainly includes three types: Alternating Current Power Supply, DC constant voltage power supply, direct current are permanent
Stream power supply.Wherein:
(1) exchange (AC) power supply: bank base station uses the Alternating Current Power Supply technology similar to land normal grid, passes through multicore copper
Conductor sea cable transfers electrical energy into the power supply change-over device of underwater node, and power supply change-over device is straight using Communication-Communication or exchange-
Stream mode carries out electric energy conversion and is supplied to underwater monitoring instrument.Ac power supply method is widely used in land net short distance, but for
The long distance power transmission that even thousand kilometers of hundred kilometers of grades, the capacitance current that power supply line generates is by the conveying of serious limiting AC cable
Distance；And Alternating Current Power Supply generallys use thicker multicore copper conductor, and cost is high, difficulty of construction is big；There is also same for Alternating Current Power Supply
Operation stability problem is walked, therefore ac power supply method is limited to offshore, short-range seabed observation network application.
(2) DC constant voltage (CV) is powered: bank base station is powered using high-voltage DC power supply constant pressure, is anode, sea cable with seawater
Copper conductor is that cathode constitutes current supply circuit, by HVDC transmission to underwater power source conversion equipment in a manner of constant voltage, after
DC high voltage is reduced to mesolow by person, is used for monitoring instrument；Each node is in paralleling model under DC constant voltage power supply mode
Take electricity, have many advantages, such as that transmission power big, high conversion efficiency, scalability are strong, Canadian NEPTUNE, the U.S. the seabed OOI
Observation grid is all made of DC constant voltage power supply mode.But there are the fatal defects of short trouble for the power supply mode, i.e., once occurring
Sea cable short circuit or underwater node short circuit, entire power supply system paralysis collapse.China, seabed continental shelf, sea area area is big, distribution is wide,
Fishery operation is very frequent and lack of standardization, it is high that short trouble probability occurs, therefore will lead to using DC constant voltage power supply mode and be
Maintenance cost of uniting is very high.
(3) direct current constant current (CC) is powered: bank base station uses high-voltage DC power supply constant current-supplying, be equally anode with seawater,
Sea cable copper conductor is that cathode constitutes current supply circuit, with constant current behavior by HVDC transmission to underwater power source converting means
It sets, it is constant low-voltage that the latter, which carries out transformation of electrical energy, and supply observation instrument uses.Under-water DC constant current-supplying mode is widely applied
It is that underwater relay amplifier and splitter power supply use in submarine communication field, usually single relay amplifier or splitter
Equipment power dissipation is not more than 50W.Submarine observation network field uses direct current constant current-supplying mode with Japanese DONET submarine earthquake monitoring net
Network is representative, which uses high voltage direct current constant current-supplying, and underwater electric energy conversion equipment uses constant current-constant current, constant current-constant pressure two
Grade converting means realizes 485W power output.For DC constant voltage conversion, constant current-supplying mode exists usually for electric work
The deficiencies of rate is less than normal, scalability is slightly worse, but as underwater monitoring equipment gradually minimizes, the development trend of low-power, to power supply
Power needs gradually reduce, and the hundreds of W power of individual node can meet the power consumption requirements of most instrument and equipments.Moreover, opposite
In DC constant voltage mode, each node of direct current constant current-supplying mode has the advantages that in series connection power-taking mode
● robustness is high.Constant current-supplying has the ability of natural resistance short trouble, because it is that series system connects, one
Short trouble occurs for denier, and system will may continue to using short circuit trouble point as sea return grounding point as system normal power supply, raising
Running efficiency of system reduces system maintenance cost.
● it is easy to sea cable fault location.It can be easier to determine failure substantially position according to the DC impedance in constant-current feeding circuit
It sets, can equally reduce system maintenance cost.
Therefore direct current constant current-supplying mode should become the extensive important selection of seabed observation network power supply mode of China's construction.
Submarine observation network direct current constant-current supply system mainly includes two class equipment: bank base constant-current feeding equipment (PFE) and water
Lower constant current constant voltage conversion equipment (CC/CV), PFE realize alternating current constant pressure to high voltage and constant current conversion function；Underwater constant-current constant-voltage device
It is the main composition part of host node, realizes that high voltage and constant current is input to constant low pressure output conversion function, set relative to bank base PFE
Standby, underwater equipment proposes very high requirement due to maintenance cost valuableness, to equipment dependability, usually proposes to need to meet to use the longevity
Life was more than 25 years.
For the demand of ten W of power number, existing submarine communication field takes electricity using serial regulating circuit realization, the technical side
Case principle is simple, reliable, therefore is widely used in the power supply circuit of submerged repeater；And for the demand of hundred W of power number, it uses
Series voltage stabilizing mode principle is feasible, but common high-power voltage-stabilizing tube is typically not greater than 10W, as power increases, on the one hand goes here and there
Voltage-stabiliser tube quantity needed for joining increases its reliability decrease, and another aspect device for converting electric energy is in underwater airtight cavity no matter
Using oil-filled or heat loss through conduction, the heat dissipation of hundreds of W will all bring very big hidden danger to voltage-stabiliser tube, and as output power increases, and supply
The mutation of electric load also will seriously affect the reliability of power supply system.Current land constant current-constant pressure conversion equipment generallys use PWM
HF switch, DC-DC parallel resonance scheme, but existing scheme is usually low pressure constant current-supplying environment, is different from submarine observation network
Remote high-voltage direct current supply environment, and onshore applications do not fully consider high reliability, high_voltage isolation, system redundancy, current supply circuit
The functions such as stability, Fault Isolation and control and underwater heat dissipation.Underwater electricity in Japanese DONET submarine earthquake monitoring network
Energy conversion equipment uses high voltage and constant current-low pressure constant current (CC/CC), low pressure constant current-constant low pressure (CC/CV) Two Stages output side
Formula only provides simple block diagram, lacks particular content description due to being related to its trade secret.
Summary of the invention
It is an object of the invention to overcome existing land constant current-constant pressure conversion equipment to be not suitable with the defect of marine environment,
Long-term highly reliable work can be achieved suitable for seabed observation network negative high voltage (- 10kV) direct current constant current-supplying system to provide one kind
The constant current (1A) of system turns the device for converting electric energy of constant pressure (output voltage is less than 72V, hundred W of power number).
To achieve the goals above, the present invention provides a kind of underwater constant current constant voltages suitable for seabed constant-current supply system
Conversion equipment, including main power conversion modules, fictitious load module, communication control module and over-voltage over-current protection module；Its
In,
The main power conversion modules are used to high voltage direct current constant current Input transformation be constant low pressure output, and the simulation is negative
Carry the constant power output that module is used to guarantee underwater constant current constant voltage conversion equipment, the fictitious load module and main power conversion mould
Block is in parallel, when main power conversion modules export failure, realizes constant power output by control fictitious load module；The communication control
Molding block remotely controls underwater constant current constant voltage conversion equipment for bank base station, and the long-range control includes: adjustment output
Power, monitoring underwater power status information；The over-voltage over-current protection module is for preventing sea cable short circuit in bypass power supply from generating
Moment over-voltage, rush of current of surging, geomagnetic induction current impact and reverse surge impact.
In above-mentioned technical proposal, the main power conversion modules have multiple, connect between multiple main power conversion modules.
In above-mentioned technical proposal, the main power conversion modules further comprise: switching circuit, transformer, Voltage Feedback
Circuit, rectification circuit, LC filter circuit and voltage-stabilizing output circuit；Wherein, described switching circuit one end and communication control module
It is connected, the other end is then connected on transformer, and one end of the rectification circuit is connected to transformer, the other end and LC filter circuit
It is connected, voltage-stabilizing output circuit is connected with LC filter circuit；One end of the voltage feedback circuit is connected with communication control module, separately
One end is in parallel with LC filter circuit.
In above-mentioned technical proposal, the voltage feedback circuit in the main power conversion modules is realized using Hall sensor.
In above-mentioned technical proposal, the switching circuit selection in the main power conversion modules has quick overcurrent turn-off function function
UC1526 is realized.
In above-mentioned technical proposal, the fictitious load module further comprises voltage sample circuit, main circuit and load
Resistance；Wherein, voltage sample circuit, main circuit, load resistance three are in parallel.
In above-mentioned technical proposal, the communication control module further comprises: communication unit, underwater control unit and auxiliary
Power supply；Wherein, the communication unit is used to realize received control command photoelectric conversion, and the control after conversion is ordered
Order is sent to underwater control unit；The accessory power supply at least there are two, provide electric energy for communication unit, underwater control unit,
The underwater control unit at least there are two, the main power conversion modules, fictitious load module are controlled respectively.
In above-mentioned technical proposal, the accessory power supply is suspended in sea cable input terminal, selects the high power pressure stabilizing of 1N3317B type
Pipe, constitutes regulated power supply by multipath voltage regulation diode.
In above-mentioned technical proposal, the communication unit in communication control module uses dual redundant warm back-up operating mode, uses
FPGA automatically selects communication link realization.
The present invention has the advantages that
(1) structure is simple: large number of voltage-stabiliser tube discrete device electricity is substituted using the simple push-pull circuit of circuit structure
Hundreds of W power constant current constant voltage (CC/CV) one-stage transfor-mation modes are realized on road, fully consider that high_voltage isolation designs, simple and reliable；
(2) system power supply is stablized: constant-current constant-voltage device is constant power output, can successfully manage supply load mutation, it is ensured that
Whole network power supply system is stablized, and system reliability is improved；
(3) redundancy is reliable: being constituted using multiple block coupled in series Redundancy Designs, improves the reliability of device for converting electric energy；
(4) it Fault Isolation: realizes that constant current constant voltage electrical energy devices remotely monitor using long-range duplex communication, long-range event can be carried out
Phragma from, switching, improve the flexibility and reliability of supply network；
(5) it adequately protects: fully considering overcurrent, over-voltage and emi protection mechanism.
Detailed description of the invention
Fig. 1 is application mode schematic diagram of the underwater constant pressure and flow conversion equipment in long-haul undersea observation system；
Fig. 2 is underwater constant pressure and flow conversion equipment system block diagram；
Fig. 3 is the main power conversion modules structure chart of underwater constant voltage supply；
Fig. 4 is the PPCB circuit diagram of main power conversion modules；
Fig. 5 is the fictitious load structure chart of underwater constant voltage supply.
Specific embodiment
Now in conjunction with attached drawing, the invention will be further described.
Before elaborating to underwater constant current constant voltage conversion equipment of the invention, first to the device in long-haul undersea
Application mode in observation system is illustrated.As shown in Figure 1, in the power supply system of long-haul undersea observation system, comprising: bank
Base constant-current feeding equipment (PFE), sea cable, splitter, underwater constant pressure and flow conversion equipment (CC/CV)；The power supply system is using double
The mode of power supply is held, the bank base constant-current feeding equipment there are two sets, is located at the both ends of power supply system, which is used for three
Mutually exchange 380VAC is converted to 10kV negative high voltage, 1A constant current output；Any bank base constant-current feeding equipment is by sea cable and divides
Prop connection；The splitter have it is multiple, between multiple splitters pass through sea cable connect；It is underwater that one is connected on each splitter
Constant pressure and flow conversion equipment, single underwater constant pressure and flow conversion equipment can provide 300W@72VDC power output, be external monitoring
Equipment provides electric energy.
Underwater constant current constant voltage conversion equipment of the invention is suitable for the constant current of negative high voltage (- 10kV) direct current (1A) supply input,
Constant low pressure (72VDC), 300W output power.Fig. 2 is the structural schematic diagram of underwater constant current constant voltage conversion equipment of the invention, such as
Shown in Fig. 2, which includes: main power conversion modules, fictitious load module, communication control module and over-voltage over-current protection mould
Block；Wherein, the main power conversion modules are used to high voltage direct current constant current Input transformation be constant low pressure output, and the simulation is negative
Carry the constant power output that module is used to guarantee underwater constant current constant voltage conversion equipment, the fictitious load module and main power conversion mould
Block is in parallel, when main power conversion modules export failure, realizes constant power output by control fictitious load module；The communication control
Molding block remotely controls underwater constant current constant voltage conversion equipment for bank base station, and the long-range control includes: adjustment output
Power, monitoring underwater power status information；The over-voltage over-current protection module is for preventing sea cable short circuit in bypass power supply from generating
Moment over-voltage, rush of current of surging, geomagnetic induction current (GIC) impact and reverse surge impact.
The module in the present invention is described further below.
The main power conversion modules further comprise: switching circuit, transformer, voltage feedback circuit, rectification circuit, LC
Filter circuit and voltage-stabilizing output circuit；Wherein, described switching circuit one end is connected with communication control module, and the other end then connects
Onto transformer, one end of the rectification circuit is connected to transformer, and the other end is connected with LC filter circuit, voltage-stabilizing output circuit
It is connected with LC filter circuit；One end of the voltage feedback circuit is connected with communication control module, the other end and LC filter circuit
It is in parallel.High voltage direct current constant current input is rectified in the main power conversion modules, LC is filtered, is changed into direct current after linear voltage stabilization
Constant voltage output, output ripple are less than 200mV, to meet the low ripple demand of monitoring instrument load.
As a kind of preferred implementation, in one embodiment, the Voltage Feedback electricity in the main power conversion modules
Road is realized using Hall sensor, to guarantee that voltage high accuracy acquires, while isolation voltage 15kV.
As a kind of preferred implementation, in one embodiment, the switching circuit choosing in the main power conversion modules
The UC1526 for selecting quick overcurrent turn-off function function is realized.
Fig. 5 is the fictitious load module frame chart of underwater constant voltage supply.As shown, fictitious load module includes voltage
Sample circuit, main circuit and load resistance；Wherein, voltage sample circuit, main circuit, load resistance three are in parallel.Voltage takes
Sample circuit is isolated by input voltage by optocoupler, becomes optical signal, is reconverted into voltage sampling signal, by communicating in Fig. 2
Control module realizes the closed-loop control to fictitious load.The main circuit of fictitious load module is similar to main power conversion unit, together
Sample is realized using push-pull circuit, equally uses multiple groups series model.Load resistance uses small in size, high-power ceramic package function
Rate resistance realizes heat heat loss through conduction using heat exchange pattern.
The communication control module further comprises: communication unit, underwater control unit and accessory power supply；Wherein, described
Communication unit is used to received control command realizing photoelectric conversion, and the control command after conversion is sent to underwater control
Unit processed；The accessory power supply at least there are two, provide electric energy, the underwater control list for communication unit, underwater control unit
Member at least there are two, the main power conversion modules, fictitious load module are controlled respectively.
Accessory power supply is suspended in sea cable input terminal, 1N3317B type high power voltage-stabiliser tube is selected, by multipath voltage regulation diode structure
At regulated power supply.
Communication unit in communication control module uses dual redundant warm back-up operating mode, automatically selects communication using FPGA
Link, to guarantee that underwater constant voltage supply and bank base Direct Communication are normal.
Over-voltage over-current protection module works independently, and is used to detect host node inlet-outlet line both end voltage, when much higher than normal
When value, it is believed that underwater constant current constant voltage conversion equipment is opened a way, and the short-circuiting means automatic short-circuit in the over-voltage over-current protection module guarantees
Electric current passes through, and does not influence the normal operation of other host nodes.
For ease of description, in the embodiment shown in Figure 2, the main power conversion modules only have one, in other implementations
In example, the main power conversion modules can have multiple.In embodiment as shown in Figure 3, the main power conversion modules have four
A (indicating main power conversion modules using PPCB in Fig. 2), the connection of these block coupled in series can both increase output power, simultaneously
Realize redundancy output, even if single PPCB breaks down, input current can be short-circuited, and output electric current is output to by diode
Other PPCB worked normally, to improve system output stability.
Fig. 4 is the circuit diagram of main power conversion modules, as shown, the topological circuit in the circuit is to recommend electricity
Road has the characteristics that structure is simple, mature and reliable；The present invention is converted using constant current constant voltage (CC/CV) level-one, and it is complicated to simplify circuit
Degree improves reliability.Output transformer in circuit uses high insulating Design, guarantees that electricity is isolated in the input and output of output transformer
Pressure is higher than 10kV, and high-tension transformer uses multiple UF type large power ferrite material splicing structures, and selection Ferrite Material is work
The higher PC50 of working frequency.Input terminal C3 selects the capacitor of high voltage (being not less than 400VAC), large capacity (being not less than 1uF), suppression
Due to voltage spikes in current supply circuit processed improves the stability of isolating transformer.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although ginseng
It is described the invention in detail according to embodiment, those skilled in the art should understand that, to technical side of the invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (7)
1. a kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system, which is characterized in that including main power
Conversion module, fictitious load module, communication control module and over-voltage over-current protection module；Wherein,
The main power conversion modules are used to high voltage direct current constant current Input transformation be constant low pressure output, the fictitious load mould
Block is used to guarantee the constant power output of underwater constant current constant voltage conversion equipment, and the fictitious load module and main power conversion modules are simultaneously
Connection realizes constant power output by control fictitious load module when main power conversion modules export failure；The communication control mould
Block remotely controls underwater constant current constant voltage conversion equipment for bank base station, the long-range control include: adjust output power,
Monitor underwater power status information；The over-voltage over-current protection module is used to prevent the moment that sea cable short circuit generates in bypass power supply
Over-voltage, rush of current of surging, geomagnetic induction current impact and reverse surge impact；
The main power conversion modules further comprise: switching circuit, transformer, voltage feedback circuit, rectification circuit, LC filtering
Circuit and voltage-stabilizing output circuit；Wherein, described switching circuit one end is connected with communication control module, and the other end is then connected to change
On depressor, one end of the rectification circuit is connected to transformer, and the other end is connected with LC filter circuit, voltage-stabilizing output circuit and LC
Filter circuit is connected；One end of the voltage feedback circuit is connected with communication control module, and the other end is in parallel with LC filter circuit；
The fictitious load module further comprises voltage sample circuit, main circuit and load resistance；Wherein, voltage sampling electricity
Road, main circuit, load resistance three are in parallel；The main circuit of fictitious load module is realized using push-pull circuit.
2. the underwater constant current constant voltage conversion equipment according to claim 1 suitable for seabed constant-current supply system, feature
It is, the main power conversion modules have multiple, connect between multiple main power conversion modules.
3. the underwater constant current constant voltage conversion equipment according to claim 1 suitable for seabed constant-current supply system, feature
It is, the voltage feedback circuit in the main power conversion modules is realized using Hall sensor.
4. the underwater constant current constant voltage conversion equipment according to claim 1 suitable for seabed constant-current supply system, feature
It is, the switching circuit selection in the main power conversion modules has the UC1526 of quick overcurrent turn-off function function to realize.
5. the underwater constant current constant voltage conversion equipment according to claim 1 or 2 suitable for seabed constant-current supply system, special
Sign is that the communication control module further comprises: communication unit, underwater control unit and accessory power supply；Wherein, described logical
Believe that unit is used to received control command realizing photoelectric conversion, and the control command after conversion is sent to underwater control
Unit；The accessory power supply at least there are two, provide electric energy, the underwater control unit for communication unit, underwater control unit
There are two at least, the main power conversion modules, fictitious load module are controlled respectively.
6. the underwater constant current constant voltage conversion equipment according to claim 5 suitable for seabed constant-current supply system, feature
It is, the accessory power supply is suspended in sea cable input terminal, 1N3317B type high power voltage-stabiliser tube is selected, by multipath voltage regulation diode
Constitute regulated power supply.
7. the underwater constant current constant voltage conversion equipment according to claim 5 suitable for seabed constant-current supply system, feature
It is, the communication unit in communication control module uses dual redundant warm back-up operating mode, automatically selects communication chain using FPGA
It realizes on road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089978.9A CN107093894B (en) | 2016-02-17 | 2016-02-17 | A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089978.9A CN107093894B (en) | 2016-02-17 | 2016-02-17 | A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107093894A CN107093894A (en) | 2017-08-25 |
| CN107093894B true CN107093894B (en) | 2019-06-18 |
Family
ID=59646518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089978.9A Active CN107093894B (en) | 2016-02-17 | 2016-02-17 | A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107093894B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108965041B (en) * | 2018-04-23 | 2019-07-09 | 中国科学院声学研究所 | A kind of test macro and method applied to submarine observation network master base station |
| CN108649565B (en) * | 2018-05-18 | 2021-04-06 | 同济大学 | Constant-voltage constant-current hybrid power supply system of seabed observation network |
| CN108964484A (en) * | 2018-07-18 | 2018-12-07 | 江苏华维电力科技有限公司 | A kind of D.C. regulated power supply |
| CN109193612B (en) * | 2018-09-21 | 2020-06-30 | 浙江大学 | Constant-current power supply system of cable system seabed observation network with stably adjusted total output power of nodes |
| CN109713658B (en) * | 2019-01-16 | 2019-11-15 | 中国科学院声学研究所 | A kind of submarine observation network master base station based on constant current-supplying |
| CN110555251B (en) * | 2019-08-22 | 2020-06-16 | 中国科学院声学研究所 | Submarine cable electrical simulation device of submarine observation network |
| CN111404142B (en) * | 2020-03-25 | 2020-11-06 | 中国科学院声学研究所 | Voltage-stabilized constant-current underwater power supply with self-matched power and power supply method thereof |
| CN111490533B (en) * | 2020-04-26 | 2020-12-29 | 中国科学院声学研究所 | Underwater power supply suitable for constant-current power supply type seabed observation network |
| CN112769329B (en) * | 2021-01-20 | 2023-11-10 | 广州宇曦电子科技有限公司 | High-power high-voltage constant-current input-to-constant-voltage output power supply and control method thereof |
| CN114063698B (en) * | 2021-10-20 | 2024-01-23 | 中航宝胜海洋工程电缆有限公司 | Main line adjusting and protecting circuit and method for constant-voltage submarine observation network |
| CN114244120A (en) * | 2021-11-17 | 2022-03-25 | 南京博兰得电子科技有限公司 | Underwater power supply |
| CN115395636B (en) * | 2022-08-08 | 2024-04-30 | 桂林电子科技大学 | Redundant backup constant-current-constant-voltage power supply circuit and control method |
| CN117463506B (en) * | 2023-12-26 | 2024-03-22 | 浙江佳环电子有限公司 | Self-adaptive constant-current constant-voltage control high-voltage power supply |
| CN117574116B (en) * | 2024-01-15 | 2024-04-19 | 湖南大学 | Mixed feature selection method for transient stability evaluation of seabed direct current system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101472375A (en) * | 2007-12-24 | 2009-07-01 | 迈博电子技术(上海)有限公司 | High-frequency constant current source converter of neon |
| US9554431B2 (en) * | 2014-01-06 | 2017-01-24 | Garrity Power Services Llc | LED driver |
-
2016
- 2016-02-17 CN CN201610089978.9A patent/CN107093894B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107093894A (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107093894B (en) | A kind of underwater constant current constant voltage conversion equipment suitable for seabed constant-current supply system | |
| US11139650B1 (en) | Primary node of seafloor observatory network based on constant current power supply | |
| CN103475086A (en) | Power source capable of achieving seamless switching of multiple power supply modules | |
| CN103066684A (en) | High voltage direct current power supply system | |
| CN102571435A (en) | Fault diagnosis system for submarine observation network nodes | |
| CN104320000A (en) | Single-pole negative-high-voltage direct current conversion system based on multiple-node submarine observation network | |
| CN104135061A (en) | Direct current supply system with leakage protection | |
| CN102299520A (en) | Reactive power compensation method and system for micro power grid | |
| CN112821899B (en) | Extremely-low-frequency high-power transmitting system | |
| CN104158307B (en) | Can system for getting online of superhigh pressure conductors on quad bundled ice-melting device for transmission line | |
| CN203243056U (en) | High/middle-voltage reactive compensation composite structure | |
| CN101447667A (en) | High voltage transducer power unit input phase loss detector | |
| CN201331555Y (en) | Power unit input open-phase detector of high-voltage inverter | |
| CN103606924B (en) | A kind of dynamic voltage compensation device and method | |
| CN106130354A (en) | The high pressure DC DC changer that a kind of 10kV powers | |
| CN104158518A (en) | Self energy taking power supply device | |
| CN204044223U (en) | A kind of chain-type inverter current sensing means | |
| CN110176764A (en) | A kind of constant-current supply system and method for net type topology submarine observation network | |
| CN105490308A (en) | Middle-high-voltage grid-connected system and middle-high-voltage grid-connected power generation system | |
| CN101771768A (en) | Digital conference system | |
| CN114552979A (en) | Bidirectional constant-current-to-constant-voltage conversion circuit and system | |
| CN210294393U (en) | Double-core electric energy meter | |
| CN103956914B (en) | A kind of active optical splitter for high voltage direct current transmission converter valve tower | |
| CN217362947U (en) | Wind-solar complementary energy-taking system | |
| CN202260526U (en) | Power system circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |