CN202696203U - Intelligent ring main unit and power unit thereof - Google Patents
Intelligent ring main unit and power unit thereof Download PDFInfo
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- CN202696203U CN202696203U CN 201220287625 CN201220287625U CN202696203U CN 202696203 U CN202696203 U CN 202696203U CN 201220287625 CN201220287625 CN 201220287625 CN 201220287625 U CN201220287625 U CN 201220287625U CN 202696203 U CN202696203 U CN 202696203U
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- supply installation
- electric supply
- battery
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Abstract
The utility model discloses an intelligent ring main unit and a power unit thereof. The power unit comprises a rectifying voltage stabilizing circuit used for converting a mains supply alternating voltage to a first direct voltage, a power-taking circuit converting electric energy obtained by a current transformer to a second direct voltage, a relay commutation circuit respectively connected with the rectifying voltage stabilizing circuit and the power-taking circuit and used for combing the first direct voltage and the second direct voltage to form a first busbar voltage, a capacity charge control circuit respectively connected with the relay commutation circuit and used for charging a super capacitor and a battery charge-discharge control circuit used for charging and discharging the battery. The super capacitor is utilized in the intelligent ring main unit, the problem of charging-discharging of a large current is solved, and polarization of a battery plate is reduced, so that service life of a storage battery is prolonged, performance of the storage battery is improved, and reliable power supply of the intelligent ring main unit is achieved.
Description
Technical field
The utility model relates to for electrical domain, relates in particular to a kind of intelligent ring main unit and electric supply installation thereof.
Background technology
Electric supply installation in the intelligent ring main unit is generally provided by storage battery at present, but, this storage battery is in the outdoor environment for a long time, need the tolerance high and low temperature environment, especially when dividing combination switch, need the larger load current of carrying, like this, performance requirement to storage battery is high, and because the cell voltage sudden change very easily causes battery malfunction.
For above-mentioned situation, the user need to safeguard battery, present most producer generally adopts the method for cell activation, but, the maintenance effects of the method is not fine, and also can't solve the problem of heavy-current discharge and quick charge, therefore, it is good and can solve the intelligent ring main unit electric supply installation of the problem of heavy-current discharge and quick charge to be badly in need of a kind of maintenance effects.
The utility model content
The technical problems to be solved in the utility model is, and is not good and can't solve the defective of high current charge-discharge for the prior art maintenance effects, provides a kind of maintenance effects good and can solve intelligent ring main unit and the electric supply installation thereof of high current charge-discharge problem.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of intelligent ring main unit electric supply installation is provided, and described electric supply installation comprises for the regulator rectifier circuit that the civil power alternating voltage is converted into the first direct voltage, the electric energy conversion that is used for current transformer is obtained is the power-supply circuit of the second direct voltage, with described regulator rectifier circuit and being used for of being connected that power-supply circuit is connected described the first direct voltage and described the second direct voltage are merged into respectively the relay switch circuit of the first DC bus-bar voltage, the capacitor charging management circuit that is used to the ultracapacitor charging that is connected with described relay switch circuit respectively and the battery charging and discharging management circuit that is used for finishing the battery charging and discharging.
Preferably, described electric supply installation also comprise respectively with described relay switch circuit be connected the load circuit that is used to the load charging that the battery charging and discharging management circuit is connected.
Preferably, described ultracapacitor forms by a plurality of super capacitors are monomer series-connected.
Preferably, the voltage of each described super capacitor is 2.7V.
Preferably, described battery charging and discharging management circuit comprises successively that being used for of connecting changes into the DC/DC transducer of the second DC bus-bar voltage that directly charges the battery with described the first DC bus-bar voltage and for the protection of the battery management unit of the charging/discharging function of battery.
Preferably, described civil power alternating voltage is 220V.
Preferably, described the first direct voltage and described the second direct voltage are 48V.
Preferably, described the first DC bus-bar voltage is 48V.
Preferably, described the second DC bus-bar voltage is 24V.
The utility model also provides a kind of intelligent ring main unit, and described ring main unit comprises above-mentioned electric supply installation.
Implement the technical solution of the utility model, has following beneficial effect: in the intelligent ring main unit electric supply installation, use ultracapacitor, can solve the high current charge-discharge problem, and reduced the polarization of accumulator plate, thereby prolonged the useful life and the performance of having improved storage battery of storage battery, realized the reliable power supply of intelligent ring main unit.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of a kind of intelligent ring main unit electric supply installation of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In order better to understand the technical solution of the utility model, below simply introduce lower ultracapacitor:
Ultracapacitor has very wide application prospect with its large capacity, high power density, strong charging and discharging capabilities, long circulation life, serviceability temperature wide ranges, many significant advantages such as pollution-free in a lot of fields as a kind of novel energy storage device.
Ultracapacitor is again double electric layer capacitor, electrochemical capacitor, and gold electric capacity and farad capacitor generally come energy storage by the polarization electrolyte.It is a kind of electrochemical element, but in the process of its energy storage chemical reaction does not occur, and this thermal energy storage process is reversible, so can repeated charge hundreds thousand of times of ultracapacitor.In addition, ultracapacitor can be regarded as being suspended in the porous electrode plate of two reactionless activity in the electrolyte, power up at pole plate, positive plate attracts the anion in the electrolyte, and negative plate attracts cation, in fact form two capacitive accumulation layers, the separated cation of opening is near negative plate, and anion is near positive plate, and table 1 is the comparison of ultracapacitor and traditional capacitance and storage battery, those skilled in the art should understand, and does not repeat them here.
In this programme, following electric supply installation is used to intelligent ring main unit that power supply is provided, and does not repeat them here; See also Fig. 1, Fig. 1 is the structural representation of a kind of intelligent ring main unit electric supply installation of the utility model, as shown in Figure 1, described electric supply installation comprises for the regulator rectifier circuit 100 that the civil power alternating voltage is converted into the first direct voltage, the electric energy conversion that is used for current transformer is obtained is the power-supply circuit 200 of the second direct voltage, with described regulator rectifier circuit 100 and being used for of being connected that power-supply circuit 200 is connected described the first direct voltage and described the second direct voltage are merged into respectively the relay switch circuit 300 of the first DC bus-bar voltage, the capacitor charging management circuit 400 that is used to the ultracapacitor charging that is connected with described relay switch circuit 300 respectively and the battery charging and discharging management circuit 500 that is used for finishing the battery charging and discharging; Should be noted that, by regulator rectifier circuit 100 and power-supply circuit 200 input two-way direct voltages, this two-way direct voltage is respectively the first direct voltage and the second direct voltage, then this two-way direct voltage is combined into one road straight line busbar voltage through relay switch circuit 300, and this one road straight line busbar voltage is the first straight line busbar voltage.
In addition, described electric supply installation also comprise respectively with described relay switch circuit 300 be connected the load circuit 600 that is used to the load charging that battery charging and discharging management circuit 500 is connected; Should be noted that, can be because the excessive electric current of circuit itself causes power supply to be dragged down when ultracapacitor begins to charge, at this moment enable the situation that drags down power supply when capacitor charging management circuit 400 can be avoided beginning to charge, those skilled in the art should understand, and does not repeat them here.
It should be noted that described ultracapacitor forms by a plurality of super capacitors are monomer series-connected; The voltage of each described super capacitor is 2.7V; In this programme, select the plurality of advantages of ultracapacitor, do not give unnecessary details one by one at this.
In the present embodiment, described civil power alternating voltage is 220V; Described the first direct voltage and described the second direct voltage are 48V.
Wherein, in the present embodiment, described battery charging and discharging management circuit 500 comprises successively that being used for of connecting changes into the DC/DC transducer 501 of the second DC bus-bar voltage that directly charges the battery with described the first DC bus-bar voltage and for the protection of the battery management unit 502 of the charging/discharging function of battery; Described the first DC bus-bar voltage is 48V; Described the second DC bus-bar voltage is 24V, in this programme, DC/DC transducer 501 also is used for the second DC bus-bar voltage is converted into the first DC bus-bar voltage, namely this DC/DC transducer 501 is bidirectional transducer, that is to say, DC/DC transducer 501 can be finished the bi-directional conversion between the first DC bus-bar voltage and the second DC bus-bar voltage, and DC/DC transducer 501 can realize that the 48v busbar voltage is to the two-way conversion between the 24v busbar voltage specifically.
In addition, the charging modes of battery can adopt the mode of current limliting constant voltage floating charge in this programme, adopts this mode to have and overcharges and cross the defencive function of putting, and can extend the life of a cell.When circuit was normal, the 48V busbar voltage was carried out floating charge by 500 pairs of batteries of battery charging and discharging management circuit.When the 48V busbar voltage was under-voltage, battery discharged by battery charging and discharging management circuit 500, sustainable load was powered.
Need to prove that above-mentioned battery management unit 502 is device construction independently, does not repeat them here.
It should be explained that, the civil power alternating voltage of the above-mentioned 220V of input and the electric energy that above-mentioned current transformer obtains in this scheme, both are for subsequent use each other, after wherein arbitrary road cuts off the power supply, then cutting is to other one the tunnel, if after both equal dead electricity, enabling battery powers, the civil power alternating voltage of 220V is converted into 48V voltage through regulator rectifier circuit 100, the electric energy that current transformer obtains is converted into 48V voltage through power-supply circuit 200, above-mentioned two-way 48V voltage is converted into one road 48V busbar voltage behind relay switch circuit 300, in the present embodiment, this 48V busbar voltage is respectively following three parts power supply, and a part is load circuit 600 power supplies, a part is the ultracapacitor charging behind capacitor charging management circuit 400, a part is powered battery through battery charging and discharging management circuit 500 in addition; It is worth mentioning that this battery is power supply in support, that is to say that after the equal dead electricity of electric energy that the civil power alternating voltage of above-mentioned 220V and above-mentioned current transformer obtain, battery is load supplying through battery charging and discharging management circuit 500.
Compared to prior art, in the intelligent ring main unit electric supply installation, use ultracapacitor, can solve the high current charge-discharge problem, and reduced the polarization of accumulator plate, thereby prolonged the useful life and the performance of having improved storage battery of storage battery, realized the reliable power supply of intelligent ring main unit.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (10)
1. intelligent ring main unit electric supply installation, it is characterized in that described electric supply installation comprises for the regulator rectifier circuit that alternating voltage is converted into the first direct voltage, the electric energy conversion that is used for current transformer is obtained is the power-supply circuit of the second direct voltage, with described regulator rectifier circuit and being used for of being connected that power-supply circuit is connected described the first direct voltage and described the second direct voltage are merged into respectively the relay switch circuit of the first DC bus-bar voltage, the capacitor charging management circuit that is used to the ultracapacitor charging that is connected with described relay switch circuit respectively and the battery charging and discharging management circuit that is used for finishing the battery charging and discharging.
2. electric supply installation according to claim 1 is characterized in that, described electric supply installation also comprise respectively with described relay switch circuit be connected the load circuit that is used to the load charging that the battery charging and discharging management circuit is connected.
3. electric supply installation according to claim 1 is characterized in that, described ultracapacitor forms by a plurality of super capacitors are monomer series-connected.
4. electric supply installation according to claim 3 is characterized in that, the voltage of each described super capacitor is 2.7V.
5. electric supply installation according to claim 1; it is characterized in that described battery charging and discharging management circuit comprises successively that being used for of connecting changes into the DC/DC transducer of the second DC bus-bar voltage that directly charges the battery with described the first DC bus-bar voltage and for the protection of the battery management unit of the charging/discharging function of battery.
6. electric supply installation according to claim 5 is characterized in that, described alternating voltage is 220V.
7. electric supply installation according to claim 6 is characterized in that, described the first direct voltage and described the second direct voltage are 48V.
8. electric supply installation according to claim 5 is characterized in that, described the first DC bus-bar voltage is 48V.
9. electric supply installation according to claim 7 is characterized in that, described the second DC bus-bar voltage is 24V.
10. an intelligent ring main unit is characterized in that, described ring main unit comprises the claims 1 to 9 each described electric supply installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287625 CN202696203U (en) | 2012-06-19 | 2012-06-19 | Intelligent ring main unit and power unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287625 CN202696203U (en) | 2012-06-19 | 2012-06-19 | Intelligent ring main unit and power unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696203U true CN202696203U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287625 Expired - Fee Related CN202696203U (en) | 2012-06-19 | 2012-06-19 | Intelligent ring main unit and power unit thereof |
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| CN (1) | CN202696203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245293A (en) * | 2018-09-12 | 2019-01-18 | 许继电源有限公司 | A kind of method of supplying power to and power supply device of power supply device |
| CN110265886A (en) * | 2019-06-28 | 2019-09-20 | 云南电网有限责任公司昭通供电局 | A kind of charge-discharge controller for ring network cabinet |
-
2012
- 2012-06-19 CN CN 201220287625 patent/CN202696203U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245293A (en) * | 2018-09-12 | 2019-01-18 | 许继电源有限公司 | A kind of method of supplying power to and power supply device of power supply device |
| CN109245293B (en) * | 2018-09-12 | 2021-03-19 | 许继电源有限公司 | Power supply device and power supply method thereof |
| CN110265886A (en) * | 2019-06-28 | 2019-09-20 | 云南电网有限责任公司昭通供电局 | A kind of charge-discharge controller for ring network cabinet |
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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: 20130123 Termination date: 20200619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |