CN102437612A - Energy storing method of large-capacity vanadium battery for oversea petroleum platform - Google Patents
Energy storing method of large-capacity vanadium battery for oversea petroleum platform Download PDFInfo
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- CN102437612A CN102437612A CN2011104221669A CN201110422166A CN102437612A CN 102437612 A CN102437612 A CN 102437612A CN 2011104221669 A CN2011104221669 A CN 2011104221669A CN 201110422166 A CN201110422166 A CN 201110422166A CN 102437612 A CN102437612 A CN 102437612A
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Abstract
The invention relates to an energy storing device and method for an oversea petroleum platform. The method comprises the following steps of: a large-capacity vanadium battery is used for supplying power when a power grid stops supplying the power; when the power grid normally supplies the power, the large-capacity vanadium battery is at a charging state; the device comprises the large-capacity vanadium battery and a bidirectional converter which is composed of a voltage conversion circuit, a three-phase inversion bridge and a filter. With the adoption of the method, the power can be immediately supplied when the power grid has a power supply fault and the oversea petroleum platform can continually and normally work, so as to reduce economic losses.
Description
Technical field
The present invention relates to a kind of energy storage device of offshore oil platform and method of energy storage of being used for.
Background technology
Current, the world has been in develop rapidly period, because the improving constantly of people's living standard; Demands for energy is also improved day by day, and at present, it is exhausted that the non-renewable energy resources of land are tending towards; People are except seeking the new energy, and also the exploitation with the energy turns to marine resources.
Offshore oil platform is the main path of exploiting ocean oil, and associated gas or diesel generation are adopted in offshore oil platform power supply at present more, and a generating ship is supplied power for several offshore oil platforms pass through submarine cable sometimes.But generating ship and submarine cable also can often break down, and bring loss for the production of petroleum drilling and mining.Sometimes just in drilling well, power failure suddenly can cause drill rod breaking, and even causes oil well to scrap.
Therefore, research and develop a kind of new electric energy feedway, the stand-by power supply when solving marine power supply trouble, extremely important.
Summary of the invention
The purpose of this invention is to provide a kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform; Be in charged state during oil platform electrical network (the diesel oil discharge local area network (LAN)) power supply at sea of the big capacity vanadium cell in this method; When the mains supply fault; Power supply can normally work on offshore oil platform immediately.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform, this method through big capacity vanadium cell power supply, make offshore oil platform can continue operate as normal when mains supply stops; When the electrical network normal power supply, big capacity vanadium cell is in charged state;
This device comprises big capacity vanadium cell, reaches the two way convertor of being made up of voltage conversion circuit, three phase inverter bridge, filter.When mains supply stops; The direct current of big capacity vanadium cell output is input to voltage conversion circuit through K switch 1; The normally opened contact K2 closed through voltage conversion circuit imports three phase inverter bridge with direct current, after inverter bridge converts alternating current to, through filter filtering; Output three phase sine alternating current is supplied with offshore oil platform and is used; When the electrical network normal power supply, big capacity vanadium cell is in charged state, by electrical network alternating current is provided, and behind filter, through the inverter bridge rectification, gives big capacity vanadium cell charging through voltage conversion circuit again.
Described voltage conversion circuit comprises electric capacity, inductance, normally opened contact, full-control type electronic switch; Under big capacity vanadium cell power supply state, normally opened contact K2 is closed, and T7 does not work; Under big capacity vanadium cell charged state, when vanadium cell voltage was in normal range of operation, normally opened contact K2 was closed, and T7 does not work, and when vanadium cell voltage was lower than normal range of operation, K2 broke off, T7 work.
Described big capacity vanadium cell is provided with supervisory control system, and supervisory control system comprises embedded microcomputer, reaches the charging current detection module, vanadium cell voltage detection module, ambient temperature detection module, output voltage detection module, alarm module, communication interface, keyboard and the display that are connected with embedded microcomputer respectively.
The controller of described two way convertor is made up of DSP digital signal processor, RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module; RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module are connected with the DSP digital signal processor respectively.The CPLD programmable logic device connects No. 6 relays, and the CPLD programmable logic device also is connected with mould/number conversion module, D/A switch module.
Compared with prior art, the invention has the beneficial effects as follows:
1) adopt vanadium flow battery as energy-storage travelling wave tube, capacity is big, and power is big, and the electrolyte of vanadium cell can be recycled no environmental protection pollution problem;
2) long service life, the vanadium cell life-span, other batteries had only several years life-spans more than 20 years, the about 1-2 of lead-acid battery;
3) reasonable price can be very expensive as adopting the high-capacity lithium battery price;
4) adopt jumbo vanadium cell energy storage device, solved the problem that offshore oil platform has a power failure suddenly, uninterrupted power supply can be provided.
Description of drawings
Fig. 1 is the energy storage method structural representation that is used for the big capacity vanadium cell of offshore oil platform;
Fig. 2 is the two way convertor structure chart;
Fig. 3 is big capacity vanadium cell supervisory control system block diagram;
Fig. 4 is the controller block diagram of two way convertor.
Embodiment
Describe in further detail below in conjunction with the accompanying drawing specific embodiments of the invention.
See Fig. 1, a kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform, this method through big capacity vanadium cell power supply, makes offshore oil platform can continue operate as normal after mains supply stops; This device comprises big capacity vanadium cell, reaches the two way convertor of being made up of voltage conversion circuit, three phase inverter bridge, filter.
See Fig. 2, voltage conversion circuit comprises capacitor C 1, inductance L 1, normally opened contact K2, full-control type electronic switch T7; Three phase inverter bridge is made up of full-controlled switch device T1-T6, and input is provided with capacitor C2; Filter is made up of inductance L 2, L3 and capacitor C3.
When mains supply stops; The direct current of big capacity vanadium cell output is input to voltage conversion circuit through K switch 1; The normally opened contact K2 closed through voltage conversion circuit imports three phase inverter bridge with direct current, after inverter bridge converts alternating current to, through filter filtering; Output three phase sine alternating current is supplied with power consumption equipment and is used.
During the electrical network normal power supply, big capacity vanadium cell is in charged state, sees shown in Figure 2.When vanadium cell voltage is in normal range of operation, by electrical network alternating current is provided, behind filter,, give big capacity vanadium cell charging through the K2 of voltage conversion circuit (closure) again through the inverter bridge rectification, T7 does not work.When vanadium cell voltage is lower than normal working voltage (when charging) like the vanadium cell no-voltage; By electrical network alternating current is provided; Behind filter; Through the inverter bridge rectification, give big capacity vanadium cell charging through the T7 and L1 (K2 breaks off during this state) step-down of voltage conversion circuit for being fit to vanadium cell charging direct voltage again.
See Fig. 3, the supervisory control system of big capacity vanadium cell comprises embedded microcomputer, reaches the charging current detection module, vanadium cell voltage detection module, ambient temperature detection module, output voltage detection module, alarm module, communication interface, keyboard and the display that are connected with embedded microcomputer respectively.
See Fig. 4, the controller of two way convertor is made up of DSP digital signal processor, RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module; RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module are connected with the DSP digital signal processor respectively.
The CPLD programmable logic device connects No. 6 relays, and the CPLD programmable logic device also is connected with mould/number conversion module, D/A switch module.
Claims (4)
1. an energy storage method that is used for the big capacity vanadium cell of offshore oil platform is characterized in that, this method through big capacity vanadium cell power supply, makes offshore oil platform can continue operate as normal when mains supply stops; When mains supply, big capacity vanadium cell system is in charged state;
This device comprises big capacity vanadium cell, reaches the two way convertor of being made up of voltage conversion circuit, three phase inverter bridge, filter; When mains supply stops; The direct current of big capacity vanadium cell output is input to voltage conversion circuit through K switch 1; The normally opened contact K2 closed through voltage conversion circuit imports three phase inverter bridge with direct current, after inverter bridge converts alternating current to, through filter filtering; Output three phase sine alternating current is supplied with offshore oil platform and is used; When mains supply, big capacity vanadium cell system is in charged state, by electrical network alternating current is provided, and behind filter, through the inverter bridge rectification, gives big capacity vanadium cell charging through voltage conversion circuit again.
2. a kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform according to claim 1 is characterized in that described voltage conversion circuit comprises electric capacity, inductance, normally opened contact, full-control type electronic switch; Under big capacity vanadium cell power supply state, normally opened contact K2 is closed, and T7 does not work; Under big capacity vanadium cell charged state, when vanadium cell voltage was in normal range of operation, normally opened contact K2 was closed, and T7 does not work, and when vanadium cell voltage was lower than normal range of operation, K2 broke off, T7 work.
3. a kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform according to claim 1; It is characterized in that; Described big capacity vanadium cell is provided with supervisory control system, and supervisory control system comprises embedded microcomputer, reaches the charging current detection module, vanadium cell voltage detection module, ambient temperature detection module, output voltage detection module, alarm module, communication interface, keyboard and the display that are connected with embedded microcomputer respectively.
4. a kind of energy storage method that is used for the big capacity vanadium cell of offshore oil platform according to claim 1; It is characterized in that the controller of described two way convertor is made up of DSP digital signal processor, RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module; RAM memory, FLASH memory, CPLD programmable logic device, optical coupling isolator, mould/number conversion module, D/A switch module are connected with the DSP digital signal processor respectively; The CPLD programmable logic device connects No. 6 relays, and the CPLD programmable logic device also is connected with mould/number conversion module, D/A switch module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104221669A CN102437612A (en) | 2011-12-16 | 2011-12-16 | Energy storing method of large-capacity vanadium battery for oversea petroleum platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104221669A CN102437612A (en) | 2011-12-16 | 2011-12-16 | Energy storing method of large-capacity vanadium battery for oversea petroleum platform |
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| CN102437612A true CN102437612A (en) | 2012-05-02 |
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| CN2011104221669A Pending CN102437612A (en) | 2011-12-16 | 2011-12-16 | Energy storing method of large-capacity vanadium battery for oversea petroleum platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441694A (en) * | 2013-08-23 | 2013-12-11 | 广西电网公司电力科学研究院 | Large-power distribution type energy storage converter |
| WO2016019486A1 (en) * | 2014-08-04 | 2016-02-11 | 深圳欧陆通电子有限公司 | Power supply and battery management module compatible with common redundant power supply |
-
2011
- 2011-12-16 CN CN2011104221669A patent/CN102437612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441694A (en) * | 2013-08-23 | 2013-12-11 | 广西电网公司电力科学研究院 | Large-power distribution type energy storage converter |
| WO2016019486A1 (en) * | 2014-08-04 | 2016-02-11 | 深圳欧陆通电子有限公司 | Power supply and battery management module compatible with common redundant power supply |
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Application publication date: 20120502 |