CN203180629U - Double-detection device of DC power supply of transformer station - Google Patents
Double-detection device of DC power supply of transformer station Download PDFInfo
- Publication number
- CN203180629U CN203180629U CN 201320094234 CN201320094234U CN203180629U CN 203180629 U CN203180629 U CN 203180629U CN 201320094234 CN201320094234 CN 201320094234 CN 201320094234 U CN201320094234 U CN 201320094234U CN 203180629 U CN203180629 U CN 203180629U
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- power supply
- electrical parameters
- parameters detection
- battery
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Abstract
A double-detection device of a DC power supply of a transformer station comprises a DC power supply unit which is connected with a power consumption equipment power supply loop (100) of the transformer station. The DC power supply unit comprises a DC power supply set (10) and a circuit (20) for connecting the DC power supply set (10) with the power consumption equipment power supply loop (100). The circuit (20) is provided with an electrical parameter detection device (30). The electrical parameter detection device (30) comprises at least two electrical parameter detection units (31) which are Hall sensors. According to the double-detection device of the DC power supply of the transformer station, two battery current Hall sensors are adopted. Battery current detection error is prevented when only one battery current Hall sensor is adopted and failure of the Hall sensor occurs. As a result, battery management parameter deviation, overcharging and insufficient charging of the battery, battery quality reduction, insufficient preparation time or power supply stoppage are prevented.
Description
Technical field
The utility model relates to circuit design, particularly for the electrical parameters detection of transforming plant DC current supply circuit.
Background technology
In power industry, each grade transformer station, power plant, hydroelectric station, user become all can be equipped with DC power supply.Standing, it is very important to play a part with DC power supply, is equivalent to DC UPS, in case the DC power supply dead electricity, the danger that the relaying protection in standing and breaking-closing operating mechanism can exist tripping or malfunction, consequence is hardly imaginable.And battery is the key equipment in the usefulness DC power supply of station, and the quality of battery has determined the reliability of DC power supply and the length of preparation time.
Standing needs the perfect battery management system of a cover with DC power supply, this system need detect information such as charger electric current, battery current, load current, and wherein this parameter of battery current has participated in battery management from start to finish, deviation has appearred if detect, then can influence battery management, even can have serious consequences.In the industry generally with Hall or shunt sampling battery current.Shunt has that drift is little, the sampling precision advantage of higher, but since be string in the loop, have safety and heating problem; And Hall has the advantage of isolating with high-tension circuit, but its drift is bigger, and sampling error is also bigger, and the application of Hall is still very general.
In the actual motion of certain transforming plant DC power supply, following problem occurs: the battery current Hall breaks down, and causes the battery current that detects seriously bigger than normal, and the direct-current supervision device is quoted fault warnings such as battery overcurrent, system power imbalance.But to combine self-monitoring communication line out of joint because direct-current supervision is sent to, and causes such alarm to fail to be found by the duty personnel.After the battery charge overcurrent took place, the direct-current supervision device will be reduced the current-limiting points of charger, if overcurrent always then the current-limiting points of charger can be transferred to minimum (being generally 5%), and the station is generally 10% ~ 20% of charger fan-out capability with the direct current conventional load.So, charger can not provide enough load currents, thereby causes battery to be in discharge condition, and at this moment owing to battery current Hall fault, original battery was discharge condition, but detected very big charging current.Battery is in discharge condition for a long time, must cause battery capacity reduction, voltage to descend, and causes the guarantor's equipment malfunction that continues at last.
Summary of the invention
The utility model provides a kind of checkout gear of double check, adopts the method that the double check unit is set, and solves to detect inaccurately in the prior art, occurs the technical problem of misoperation easily.
The utility model comprises the dc power supply unit that is connected on transformer station's power consumption equipment current supply circuit for this transforming plant DC power supply double check device that provides is provided, this dc power supply unit comprises DC power supply group and the electric line that this DC power supply group is connected the power consumption equipment current supply circuit, this electric line is provided with the electrical parameters detection device, comprises at least two electrical parameters detection unit in the described electrical parameters detection device.
Described two electrical parameters detection unit are current detecting unit, these two electrical parameters detection units in series are in electric line, described two electrical parameters detection unit comprise at least one Hall element, and perhaps described two electrical parameters detection unit are Hall element.Also can comprise at least one shunt in described two electrical parameters detection unit, perhaps described two electrical parameters detection unit are shunt.
The utility model adopts two battery current Halls, when having avoided only adopting a battery current Hall, after if this Hall breaks down, the battery current that causes detects inaccurate, consequence is that deviation appears in battery management parameter, when serious in addition cause over-charging of battery, owe to fill, battery quality descends, the danger of preparation time deficiency even dead electricity.
Description of drawings
Fig. 1 is the utility model transforming plant DC power supply double check device electrical schematics.
Embodiment
In conjunction with above-mentioned description of drawings specific embodiment of the utility model.
By among Fig. 1 as can be known, the double check device of this transforming plant DC power supply comprises the dc power supply unit that is connected on transformer station's power consumption equipment current supply circuit 100, this dc power supply unit comprises DC power supply group 10 and the electric line 20 that this DC power supply group 10 is connected power consumption equipment current supply circuit 100, this electric line 20 is provided with electrical parameters detection device 30, comprise at least two electrical parameters detection unit 31 in the described electrical parameters detection device 30, described two electrical parameters detection unit 31 are current detecting unit, and these two electrical parameters detection unit 31 are connected in the electric line 20.This programme adopts two battery current electrical parameters detection unit 31 to solve.After first electrical parameters detection unit 31 broke down, reporting system current imbalance alarm was generally understood in direct-current supervision, the battery current data that at this moment just adopt second electrical parameters detection unit 31 to detect, and judge whether balance of system power.The probability that all breaks down of two electrical parameters detection unit 31 is low-down after all.
By among Fig. 1 as can be known, described two electrical parameters detection unit 31 comprise at least one Hall element, perhaps described two electrical parameters detection unit 31 are Hall element.
By among Fig. 1 as can be known, described two electrical parameters detection unit 31 comprise at least one shunt, perhaps described two electrical parameters detection unit 31 are shunt.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. the double check device of a transforming plant DC power supply, comprise the dc power supply unit that is connected on transformer station's power consumption equipment current supply circuit (100), this dc power supply unit comprises DC power supply group (10) and the electric line (20) that this DC power supply group (10) is connected power consumption equipment current supply circuit (100), this electric line (20) is provided with electrical parameters detection device (30), it is characterized in that: comprise at least two electrical parameters detection unit (31) in the described electrical parameters detection device (30).
2. according to the double check device of the described transforming plant DC power supply of claim 1, it is characterized in that: described two electrical parameters detection unit (31) are current detecting unit, and these two electrical parameters detection unit (31) are connected in the electric line (20).
3. according to the double check device of claim 1 or 2 described transforming plant DC power supplys, it is characterized in that: described two electrical parameters detection unit (31) comprise at least one Hall element.
4. according to the double check device of the described transforming plant DC power supply of claim 3, it is characterized in that: described two electrical parameters detection unit (31) are Hall element.
5. according to the double check device of claim 1 or 2 described transforming plant DC power supplys, it is characterized in that: described two electrical parameters detection unit (31) comprise at least one shunt.
6. according to the double check device of the described transforming plant DC power supply of claim 5, it is characterized in that: described two electrical parameters detection unit (31) are shunt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320094234 CN203180629U (en) | 2013-03-01 | 2013-03-01 | Double-detection device of DC power supply of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320094234 CN203180629U (en) | 2013-03-01 | 2013-03-01 | Double-detection device of DC power supply of transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180629U true CN203180629U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320094234 Expired - Lifetime CN203180629U (en) | 2013-03-01 | 2013-03-01 | Double-detection device of DC power supply of transformer station |
Country Status (1)
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| CN (1) | CN203180629U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079066A (en) * | 2013-10-30 | 2014-10-01 | 中国南方电网有限责任公司 | Method for judging disappearance of secondary direct-current power supply of far-end transformer substation |
| CN104459555A (en) * | 2014-03-24 | 2015-03-25 | 中国能源建设集团广东省电力设计研究院 | Battery energy storage station DC system fault recording and collecting device |
| CN105116214A (en) * | 2015-08-31 | 2015-12-02 | 重庆京东方光电科技有限公司 | Power detection device |
| CN105738819A (en) * | 2016-02-03 | 2016-07-06 | 成都雅骏新能源汽车科技股份有限公司 | Battery management system total current estimation method |
| CN114755476A (en) * | 2022-04-14 | 2022-07-15 | 中国第一汽车股份有限公司 | Battery current detection method and electronic device |
-
2013
- 2013-03-01 CN CN 201320094234 patent/CN203180629U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104079066A (en) * | 2013-10-30 | 2014-10-01 | 中国南方电网有限责任公司 | Method for judging disappearance of secondary direct-current power supply of far-end transformer substation |
| CN104459555A (en) * | 2014-03-24 | 2015-03-25 | 中国能源建设集团广东省电力设计研究院 | Battery energy storage station DC system fault recording and collecting device |
| CN105116214A (en) * | 2015-08-31 | 2015-12-02 | 重庆京东方光电科技有限公司 | Power detection device |
| CN105738819A (en) * | 2016-02-03 | 2016-07-06 | 成都雅骏新能源汽车科技股份有限公司 | Battery management system total current estimation method |
| CN114755476A (en) * | 2022-04-14 | 2022-07-15 | 中国第一汽车股份有限公司 | Battery current detection method and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-detection device of DC power supply of transformer station Effective date of registration: 20140703 Granted publication date: 20130904 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Registration number: 2014990000540 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150608 Granted publication date: 20130904 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Registration number: 2014990000540 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-detection device of DC power supply of transformer station Effective date of registration: 20150612 Granted publication date: 20130904 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Registration number: 2015990000471 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |