CN101826707A - Intelligent prefabricated substation - Google Patents
Intelligent prefabricated substation Download PDFInfo
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- CN101826707A CN101826707A CN200910024880A CN200910024880A CN101826707A CN 101826707 A CN101826707 A CN 101826707A CN 200910024880 A CN200910024880 A CN 200910024880A CN 200910024880 A CN200910024880 A CN 200910024880A CN 101826707 A CN101826707 A CN 101826707A
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Abstract
The invention relates to an intelligent prefabricated substation, in particular to a set of distribution devices for the transformation and distribution field. The substation comprises a main control module, a measurement module, a display module, a switch control module, a fault recoding function module, an earthing test function module and other function modules. A single chip microcomputer is arranged on the main control module. The functional modules are controlled by the single chip microcomputer directly and work relatively independently. The measurement module collects and processes the data of the current and voltage input signals of a three-phase AC circuit through an AC sampling method, measures current, voltage, active power, reactive power, power factor, phase, frequency and electric energy parameter, stores measured data in EEPROM for an upper monitor to read and analyze for later processing. The switch control module is provided with a relay, monitors the state of switches, receives switch control commands sent by the upper monitor and makes the corresponding switch work by controlling the relay. The invention has the advantages of convenient manufacture and quick maintenance.
Description
Technical field
The present invention relates to a kind of complete controller switching equipment that is used to become the distribution field, relate in particular to a kind of compact 24KV high voltage/low voltage prepackage type box transforming station equipment.
Background technology
The structural shape of box-type substation mainly contains two kinds both at home and abroad at present: a kind of is that American case becomes, and a kind of is that European case becomes.And European case change version has two kinds: a kind of is the order font structure, the weak point of this structure is that high and low pressure turnover line all connects the high and low pressure cabinet from the transformer top, to making the high pressure inlet wire exposed, and the design temperature rise of transformer self coil is higher, so the bearing capacity of transformer is poor, burn out transformer easily, therefore exist the unsafe problem of electricity consumption.Secondly, because machine volume is bigger, difficult is installed.Another kind is Chinese character pin-shaped structure.Though this compact conformation, volume is little, and weak point is, because low-voltage cabinet is subjected to the space limited, can't the setting operation service clearance, and exist the maintenance difficulty, run into the problem that bad weather just can not keep in repair.In addition, existing box-type substation is managed case change carrying out long-range realization " four is distant " by the host computer of main website for realizing automation control, intelligent substation in the ring network power supply system under the control of main website, can be finished fault section and locate automatically, failure removal, functions such as load transfer.But above-mentioned control method is comparatively complicated, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of intellectuality, Electrical Safety, reliable, compact conformation, minimizing floor space, economical with materials, maintenance is simple and direct, easy to operate, the intelligent prefabricated substation that the relativity price ratio is high.
Technical scheme of the present invention is: comprise being high pressure/transformer case, the low-voltage cabinet that day word structure is laid, high pressure/transformer case inside is provided with terminal type or looped network type ring main unit and transformer; Low-voltage cabinet inside is provided with intelligent controller, metering circuit, the reactive power compensation circuit that links to each other with host computer,
Intelligent controller mainly comprises interconnective main control module, measurement module, display module, switch control module, and functional module such as failure wave-recording, earthing test;
Single-chip microcomputer is arranged on the main control module, and each functional module is directly controlled by single-chip microcomputer, relatively independent work;
Measurement module carries out data acquisition with ac sampling method to electric current, the voltage input signal of three-phase AC line and handles, realization is to the measurement of electric current, voltage, active power, reactive power, power factor, phase place, frequency, electric energy parameter, and regularly measurement data is stored among the EEPROM, keep supplying machine-readable the getting in position and carry out the post analysis processing;
Switch control module is provided with relay, and switch control module is monitored the state of each switch, receives the switch control command that host computer sends, and makes corresponding switch motion by the relay of controlling on it.
Described intelligent controller also comprises the wireless gsm module that links to each other with single-chip microcomputer.
Single-chip microcomputer in the described intelligent controller adopts the high-speed dsp chip, also be provided with the high-speed a/d sampling A in the described intelligent controller, high-speed dsp chip, high-speed a/d sampling A are carried out high-speed sampling to 6 road input signals such as the electric current in the three-phase AC line, voltages, adopt digital filtering technique, utilize low frequency component to realize the isoparametric measurement of real-time voltage, electric current, power, power factor, frequency of high voltage chamber, by comparative analysis, arc fault is accurately judged the high fdrequency component of voltage, electric current.
Be designed to " day " word structure on the general structure of the present invention, hyperbaric chamber and transformer room are integrated, adopted advanced technology such as special-shaped copper alloy bus, make the volume of transformer station littler, performance is more stable.The structural design of intelligence control system is mainly reflected on the modularization idea, mainly comprises main control module, measurement module, display module, switch control module, functional modules such as failure wave-recording, earthing test.Make equipment of the present invention more convenient during fabrication like this, more simple when breaking down, keep in repair more quick.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the vertical view of Fig. 1
The structured flowchart of Fig. 3 intelligent controller of the present invention
Fig. 4 is an operation principle block diagram of the present invention
Among the figure, the 1st, transformer, the 2nd, a part; the 3rd, high pressure inlet wire cable, the 4th, high pressure incoming line cabinet, the 5th, high-voltage terminal cabinet; the 6th, the high pressure fusible core of protection transformer in the high-voltage terminal cabinet; the 7th, the high lamination shoe of transformer high-voltage inlet wire side, the 8th, transformer low voltage outlet side voltage pile crown, the 9th, transformer low voltage outlet side zero phase pile crown; the 10th, low-voltage power distributing cabinet electric power incoming line side; the 11st, low-voltage power distributing cabinet zero phase side, the 12nd, intelligent controller, the 13rd, the cable of the totally-enclosed electric cable accessories of two ends band.
Embodiment
The present invention as shown in Figure 1, 2, 3, it links to each other with host computer, comprises being high pressure/transformer case, the low-voltage cabinet that day word structure is laid, high pressure/transformer case inside is provided with terminal type or looped network type ring main unit and transformer; Low-voltage cabinet inside is provided with intelligent controller, metering circuit, the reactive power compensation circuit that links to each other with host computer.
Intelligent controller mainly comprises interconnective main control module, measurement module, display module, switch control module, and functional module such as failure wave-recording, earthing test;
Single-chip microcomputer is arranged on the main control module, and each functional module is directly controlled by single-chip microcomputer, relatively independent work;
Measurement module carries out data acquisition with ac sampling method to electric current, the voltage input signal of three-phase AC line and handles, realization is to the measurement of electric current, voltage, active power, reactive power, power factor, phase place, frequency, electric energy parameter, and regularly measurement data is stored among the EPROM, keep supplying machine-readable the getting in position and carry out the post analysis processing;
Switch control module is provided with relay, and switch control module is monitored the state of each switch, receives the switch control command that host computer sends, and makes corresponding switch motion by the relay of controlling on it.
Described intelligent controller also comprises the wireless gsm module that links to each other with single-chip microcomputer.
Single-chip microcomputer in the described intelligent controller adopts the high-speed dsp chip, also be provided with the high-speed a/d sampling A in the described intelligent controller, high-speed dsp chip, high-speed a/d sampling A are carried out high-speed sampling to 6 road input signals such as the electric current in the three-phase AC line, voltages, adopt digital filtering technique, utilize low frequency component to realize the isoparametric measurement of real-time voltage, electric current, power, power factor, frequency of high voltage chamber, by comparative analysis, arc fault is accurately judged the high fdrequency component of voltage, electric current.
Make when of the present invention, high pressure inlet wire cable 3 becomes bottom high pressure entrance hole by case and pierces in case becomes as shown in Figure 1, 2, receives on the high pressure incoming line cabinet 4, and middle to prop up part 2 fixing by tying up cable.The cable 13 of the totally-enclosed electric cable accessories of two ends band is drawn by high-voltage terminal cabinet 5, and the lower end of high pressure fusible core 6 of protection transformer causes on the high lamination shoe 7 of transformer high-voltage inlet wire side above the transformer 1 in the high-voltage terminal cabinet.Transformer high-voltage side cable is just all in place like this.Transformer 1 power supply wiring is drawn by transformer low voltage outlet side voltage pile crown 8, can the row of being also can do cable and cause on the low-voltage power distributing cabinet electric power incoming line side 10.Transformer 1 zero wiring are drawn by transformer low voltage outlet side zero phase pile crown 9, can the row of being also can do cable and cause on the low-voltage power distributing cabinet zero phase side 11.The step down side cable is just all in place like this.By low-voltage cabinet circuit is controlled then.
Characteristics of the present invention are as follows:
(1) be arranged on high-voltage board and the transformer room of case in becoming and combine and be " day " font with low-pressure chamber and arrange, the high pressure ring cabinet is above step-up side.
(2) transformer station is inner handles by same set of hardware circuit and high-speed digital signal, to the low frequency component of electric current and voltage and the different disposal of high fdrequency component, realizes the fusion of parameter measurement and arc fault diagnosis, and integrated with circuit breaker.
(3) adopt the cold rolling deformed steel assembled frame of multiple bending structure, volume is little, the intensity height; Special-shaped copper alloy bus need not secondary operations, the installation method uniqueness, and easy to connect, radiating surface is big, and kelvin effect is good, saves copper material; Supporting bus structure and input/output port, easy for installation, connect reliably, greatly improved the dynamic thermal stability of busbar short-circuit.
(4) because the high pressure ring cabinet is placed on the transformer top, the space that the high-tension cable wiring is safeguarded becomes big, wiring, detection and fusible core are installed to be changed conveniently, from the ring main unit end opening to the transformer high-voltage pile crown apart from minimizing, stube cable is short, thus economical with materials, the volume of minimizing box-type substation, thereby the minimizing floor space, arrange and the former typical structure of low-pressure chamber do not have much variations.
(5) because domestic alternative cable connectors is more, can make the connected mode of ring main unit lower end identical, thereby realize that tangible formula connects, and has increased reliability of products with the connected mode of step-up side.After this programme is implemented fully, will drive the innovation of transformer industry, thereby guarantee the safe and stable operation of transformer, reduce fault.
(6) inner multidata integration technology and the GMS SMS service of adopting of transformer station combines, adopt GMS short message communication technology, not limited by communication distance and region, data can be sent to any place safely, and the preassembled transformer station comprehensive monitor system of two technology is merged in design.
Claims (3)
1. an intelligent prefabricated substation comprises being high pressure/transformer case, the low-voltage cabinet that day word structure is laid, and high pressure/transformer case inside is provided with terminal type or looped network type ring main unit and transformer; Low-voltage cabinet inside is provided with intelligent controller, metering circuit, the reactive power compensation circuit that links to each other with host computer, it is characterized in that:
Intelligent controller mainly comprises interconnective main control module, measurement module, display module, switch control module, and functional module such as failure wave-recording, earthing test;
Single-chip microcomputer is arranged on the main control module, and each functional module is directly controlled by single-chip microcomputer, relatively independent work;
Measurement module carries out data acquisition with ac sampling method to electric current, the voltage input signal of three-phase AC line and handles, realization is to the measurement of electric current, voltage, active power, reactive power, power factor, phase place, frequency, electric energy parameter, and regularly measurement data is stored among the EEPROM, keep supplying machine-readable the getting in position and carry out the post analysis processing;
Switch control module is provided with relay, and switch control module is monitored the state of each switch, receives the switch control command that host computer sends, and makes corresponding switch motion by the relay of controlling on it.
2. a kind of intelligent prefabricated substation according to claim 1 is characterized in that, described intelligent controller also comprises the wireless gsm module that links to each other with single-chip microcomputer.
3. a kind of intelligent prefabricated substation according to claim 1, it is characterized in that, single-chip microcomputer in the described intelligent controller adopts the high-speed dsp chip, also be provided with the high-speed a/d sampling A in the described intelligent controller, the high-speed dsp chip, the high-speed a/d sampling A is to the electric current in the three-phase AC line, 6 road input signals such as voltage carry out high-speed sampling, adopt digital filtering technique, utilize low frequency component to realize the real-time voltage of high voltage chamber, electric current, power, power factor, the isoparametric measurement of frequency, by to voltage, the comparative analysis of the high fdrequency component of electric current is accurately judged arc fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910024880A CN101826707A (en) | 2009-03-02 | 2009-03-02 | Intelligent prefabricated substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910024880A CN101826707A (en) | 2009-03-02 | 2009-03-02 | Intelligent prefabricated substation |
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| CN101826707A true CN101826707A (en) | 2010-09-08 |
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| CN200910024880A Pending CN101826707A (en) | 2009-03-02 | 2009-03-02 | Intelligent prefabricated substation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938116A (en) * | 2010-09-14 | 2011-01-05 | 深圳市华力特电气股份有限公司 | Relay protection method and device |
| CN102185262A (en) * | 2011-02-10 | 2011-09-14 | 山东计保电气有限公司 | Intelligent integrated substation |
| CN104332871A (en) * | 2014-09-30 | 2015-02-04 | 北京合纵实科电力科技有限公司 | 10kV energy-saving type European transformer |
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
| CN107508183A (en) * | 2017-09-20 | 2017-12-22 | 江苏其厚智能电气设备有限公司 | Minimize preassembled transformer station |
| CN110531206A (en) * | 2019-08-27 | 2019-12-03 | 广东电网有限责任公司 | Split-phase type low-voltage ground fault detection means |
Citations (3)
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| CN2845249Y (en) * | 2005-09-26 | 2006-12-06 | 重庆亚东亚机电科技研究所 | Safety-type all insulation preassembled transformer station |
| CN101046496A (en) * | 2006-03-29 | 2007-10-03 | 森萨塔科技公司 | Methods of detecting arc faults characterized by consecutive periods of arcing |
| CN201408925Y (en) * | 2009-03-02 | 2010-02-17 | 丁建新 | Compact prefabricated substation |
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2009
- 2009-03-02 CN CN200910024880A patent/CN101826707A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2845249Y (en) * | 2005-09-26 | 2006-12-06 | 重庆亚东亚机电科技研究所 | Safety-type all insulation preassembled transformer station |
| CN101046496A (en) * | 2006-03-29 | 2007-10-03 | 森萨塔科技公司 | Methods of detecting arc faults characterized by consecutive periods of arcing |
| CN201408925Y (en) * | 2009-03-02 | 2010-02-17 | 丁建新 | Compact prefabricated substation |
Non-Patent Citations (1)
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| 刘曙光等: "预装式变电站综合保护装置的设计与实现", 《电力系统自动化》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938116A (en) * | 2010-09-14 | 2011-01-05 | 深圳市华力特电气股份有限公司 | Relay protection method and device |
| CN101938116B (en) * | 2010-09-14 | 2012-11-21 | 深圳市华力特电气股份有限公司 | Relay protection method and device |
| CN102185262A (en) * | 2011-02-10 | 2011-09-14 | 山东计保电气有限公司 | Intelligent integrated substation |
| CN104332871A (en) * | 2014-09-30 | 2015-02-04 | 北京合纵实科电力科技有限公司 | 10kV energy-saving type European transformer |
| CN106329381A (en) * | 2016-10-20 | 2017-01-11 | 莱福士电力电子设备（深圳）有限公司 | Ring main unit |
| CN107508183A (en) * | 2017-09-20 | 2017-12-22 | 江苏其厚智能电气设备有限公司 | Minimize preassembled transformer station |
| CN110531206A (en) * | 2019-08-27 | 2019-12-03 | 广东电网有限责任公司 | Split-phase type low-voltage ground fault detection means |
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Application publication date: 20100908 |