CN105958614A - 220KV transformer station direct current cabinet circuit - Google Patents
220KV transformer station direct current cabinet circuit Download PDFInfo
- Publication number
- CN105958614A CN105958614A CN201610391870.5A CN201610391870A CN105958614A CN 105958614 A CN105958614 A CN 105958614A CN 201610391870 A CN201610391870 A CN 201610391870A CN 105958614 A CN105958614 A CN 105958614A
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- CN
- China
- Prior art keywords
- charging device
- monitoring unit
- voltage
- circuit
- electric current
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- H02J7/027—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a 220KV transformer station direct current cabinet circuit. The 220KV transformer station direct current cabinet circuit includes a charging device, a monitoring unit, a measuring meter, an insulation monitoring device, a step-down silicon chain and a storage battery management unit, wherein the charging device is used for charging a storage battery group; the monitoring unit is used for diagnosing the internal fault in the circuit and the abnormal operation state, measuring voltage and current signals and acquiring circuit working state signals; a fixed value setting module is arranged in the monitoring unit; the measuring meter is used for measuring the current, the voltage and the charge in the circuit, and transmitting the measured data to the monitoring unit; the insulation monitoring device is used for detecting the ground insulation situation of the circuit, automatically detecting a fault loop, and transmitting a detected signal to the monitoring unit; the step-down silicon chain is used for detecting a bus in the circuit, and guaranteeing that the voltage value of the bus is within the set range under the control of the monitoring unit; and the storage battery management unit is used for detecting the operating condition of the storage battery group, measuring the voltage of each storage battery in the storage battery group, and transmitting the detection signals to the monitoring units. The 220KV transformer station direct current cabinet circuit can reduce the failure rate of equipment.
Description
Technical field
The present invention relates to field of electrical equipment, in particular it relates to a kind of 220KV DC screen of transformer substation circuit.
Background technology
At present, the scheduled overhaul system that in power system, power equipment uses mostly also exists major defect, and as frequent in provisional maintenance, maintenance deficiency or maintenance surplus, blindly maintenance etc., this makes countries in the world costly in terms of maintenance of equipment every year.And for a long time, China's power system performs periodic inspection system to power equipment, to equipment Inspection and maintenance, thus there is the drawback that maintenance is excessively not enough with maintenance in the most planned time cycle.Because of fault at power train unification, often cause large-area power failure.And there is the problem that fault rate is higher in existing power equipment.
Summary of the invention
It is an object of the invention to, for the problems referred to above, propose a kind of 220KV DC screen of transformer substation circuit, to realize the advantage reducing equipment failure rate.
For achieving the above object, the technical solution used in the present invention is:
A kind of 220KV DC screen of transformer substation circuit, including, charging device, monitoring unit, measurement table meter, insulating monitor, voltage dropping silicon chain, accumulator battery, battery management unit and direct current feed control panel, the control end of described charging device is connected with monitoring unit；
Described charging device: alternating current power supply is transformed to DC source, is charged accumulator battery；
Described monitoring unit: diagnostic circuit internal fault and abnormal running status; measure charging device AC-input voltage, charging device output voltage/electric current, accumulator battery voltage/electric current and accumulator battery temperature; and Acquisition Circuit working state signal; arranging definite value in monitoring unit and arrange module, definite value arranges module: be set exchange input protection value, charging device operational parameter value, DC bus-bar voltage abnormality alarming value, accumulator battery operational parameter value and charging device controlling value；
Described measurement table meter: the electric current in circuit, voltage and electric charge are measured, and the data measured are transmitted to monitoring unit；
Described insulating monitor: the insulation against ground situation of testing circuit, and automatically detect fault loop, and the signal of detection is transmitted to monitoring unit；
Described voltage dropping silicon chain: the bus in testing circuit, and under the control of monitoring unit, it is ensured that bus voltage value is in the range of arranging；
Described battery management unit: detection accumulator battery operating condition, measures the voltage of each accumulator in accumulator battery, and transmits detection signal to monitoring unit.
Preferably, described charging device has pressure-limit current-limit function, i.e. when charging device output electric current is less than when arranging electric current, and charging device is operated in pressure constant state；When charging device output electric current arranges electric current more than it, charging device is operated in constant current state.
Technical scheme has the advantages that
The present invention, by improving 220KV DC screen of transformer substation circuit, reduces the purpose of equipment failure rate.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the 220KV DC screen of transformer substation schematic block circuit diagram described in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of 220KV DC screen of transformer substation circuit, including, charging device, monitoring unit, measurement table meter, insulating monitor, voltage dropping silicon chain, accumulator battery, battery management unit and direct current feed control panel, the control end of charging device is connected with monitoring unit；
Charging device: alternating current power supply is transformed to DC source, is charged accumulator battery；
Monitoring unit: diagnostic circuit internal fault and abnormal running status; measure charging device AC-input voltage, charging device output voltage/electric current, accumulator battery voltage/electric current and accumulator battery temperature; and Acquisition Circuit working state signal; arranging definite value in monitoring unit and arrange module, definite value arranges module: be set exchange input protection value, charging device operational parameter value, DC bus-bar voltage abnormality alarming value, accumulator battery operational parameter value and charging device controlling value；
Measure table meter: the electric current in circuit, voltage and electric charge are measured, and the data measured are transmitted to monitoring unit；
Insulating monitor: the insulation against ground situation of testing circuit, and automatically detect fault loop, and the signal of detection is transmitted to monitoring unit；
Voltage dropping silicon chain: the bus in testing circuit, and under the control of monitoring unit, it is ensured that bus voltage value is in the range of arranging；
Battery management unit: detection accumulator battery operating condition, measures the voltage of each accumulator in accumulator battery, and transmits detection signal to monitoring unit.
Preferably, charging device has pressure-limit current-limit function, i.e. when charging device output electric current is less than when arranging electric current, and charging device is operated in pressure constant state；When charging device output electric current arranges electric current more than it, charging device is operated in constant current state.
Voltage dropping silicon chain is arranged in the enclosure, and the long-term operational limit temperature rise continuously under rated load of the shell of voltage dropping silicon chain is less than 85 DEG C.
Monitoring unit has accumulator float charge voltage temperature compensation function, and when battery environment temperature departure design temperature 25 DEG C, monitoring unit is automatically adjusted the float charge voltage of charging device, it is achieved temperature-compensating, and penalty coefficient sets according to accumulator recommendation.Battery environment temperature temperature probe is no less than 3.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. a 220KV DC screen of transformer substation circuit, it is characterized in that, including, charging device, monitoring unit, measurement table meter, insulating monitor, voltage dropping silicon chain, accumulator battery, battery management unit and direct current feed control panel, the control end of described charging device is connected with monitoring unit；
Described charging device: alternating current power supply is transformed to DC source, is charged accumulator battery；
Described monitoring unit: diagnostic circuit internal fault and abnormal running status; measure charging device AC-input voltage, charging device output voltage/electric current, accumulator battery voltage/electric current and accumulator battery temperature; and Acquisition Circuit working state signal; arranging definite value in monitoring unit and arrange module, definite value arranges module: be set exchange input protection value, charging device operational parameter value, DC bus-bar voltage abnormality alarming value, accumulator battery operational parameter value and charging device controlling value；
Described measurement table meter: the electric current in circuit, voltage and electric charge are measured, and the data measured are transmitted to monitoring unit；
Described insulating monitor: the insulation against ground situation of testing circuit, and automatically detect fault loop, and the signal of detection is transmitted to monitoring unit；
Described voltage dropping silicon chain: the bus in testing circuit, and under the control of monitoring unit, it is ensured that bus voltage value is in the range of arranging；
Described battery management unit: detection accumulator battery operating condition, measures the voltage of each accumulator in accumulator battery, and transmits detection signal to monitoring unit.
220KV DC screen of transformer substation circuit the most according to claim 1, it is characterised in that described charging device has pressure-limit current-limit function, i.e. when charging device output electric current is less than when arranging electric current, and charging device is operated in pressure constant state；When charging device output electric current arranges electric current more than it, charging device is operated in constant current state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391870.5A CN105958614A (en) | 2016-06-06 | 2016-06-06 | 220KV transformer station direct current cabinet circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391870.5A CN105958614A (en) | 2016-06-06 | 2016-06-06 | 220KV transformer station direct current cabinet circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105958614A true CN105958614A (en) | 2016-09-21 |
Family
ID=56907766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610391870.5A Pending CN105958614A (en) | 2016-06-06 | 2016-06-06 | 220KV transformer station direct current cabinet circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105958614A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260338A (en) * | 2020-09-25 | 2021-01-22 | 中国直升机设计研究所 | Direct current emergency power supply system |
| CN115189431A (en) * | 2022-06-08 | 2022-10-14 | 云南电网有限责任公司楚雄供电局 | Transformer substation direct-current battery pack device and automatic capacity-keeping system thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074994A (en) * | 2010-12-10 | 2011-05-25 | 温州电力局 | Charging device of direct-current (DC) system |
| CN202167791U (en) * | 2011-07-27 | 2012-03-14 | 上海凯华电源成套设备有限公司 | Integrated screen of common DC power source screen and monitoring device |
| CN102545337A (en) * | 2012-01-20 | 2012-07-04 | 张家港市华为电子有限公司 | Temperature compensation method in charging process of storage battery |
| CN204131204U (en) * | 2014-07-07 | 2015-01-28 | 沈阳天利科技有限公司 | Intelligent direct current power shields |
| CN104682556A (en) * | 2014-12-16 | 2015-06-03 | 国家电网公司 | Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system |
-
2016
- 2016-06-06 CN CN201610391870.5A patent/CN105958614A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074994A (en) * | 2010-12-10 | 2011-05-25 | 温州电力局 | Charging device of direct-current (DC) system |
| CN202167791U (en) * | 2011-07-27 | 2012-03-14 | 上海凯华电源成套设备有限公司 | Integrated screen of common DC power source screen and monitoring device |
| CN102545337A (en) * | 2012-01-20 | 2012-07-04 | 张家港市华为电子有限公司 | Temperature compensation method in charging process of storage battery |
| CN204131204U (en) * | 2014-07-07 | 2015-01-28 | 沈阳天利科技有限公司 | Intelligent direct current power shields |
| CN104682556A (en) * | 2014-12-16 | 2015-06-03 | 国家电网公司 | Remote intelligent maintenance system for direct current power supply of transformer substation and application of remote intelligent maintenance system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112260338A (en) * | 2020-09-25 | 2021-01-22 | 中国直升机设计研究所 | Direct current emergency power supply system |
| CN115189431A (en) * | 2022-06-08 | 2022-10-14 | 云南电网有限责任公司楚雄供电局 | Transformer substation direct-current battery pack device and automatic capacity-keeping system thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160921 |