CN104767140A - Intelligent on-load capacity regulating and voltage regulating box-type substation - Google Patents
Intelligent on-load capacity regulating and voltage regulating box-type substation Download PDFInfo
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- CN104767140A CN104767140A CN201510198809.4A CN201510198809A CN104767140A CN 104767140 A CN104767140 A CN 104767140A CN 201510198809 A CN201510198809 A CN 201510198809A CN 104767140 A CN104767140 A CN 104767140A
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Abstract
The invention discloses an intelligent on-load capacity regulating and voltage regulating box-type substation, and relates to the technical field of distributing substations. The substation comprises an on-load capacity regulating and voltage regulating transformer, a high-voltage switch board, a low-voltage switch board, a current and voltage sampling unit and a PLC control cabinet; the high-voltage switch board is connected with the high-voltage input end of the on-load capacity regulating and voltage regulating transformer through a breaker, the low-voltage switch board is connected with the low-voltage line output end of the on-load capacity regulating and voltage regulating transformer, and is connected with a load through an air switch and the current and voltage sampling unit, the control output end of the PLC control cabinet is connected with the switching control input end of the high-voltage switch board and the switching control input end of the low-voltage switch board, and the current and voltage sampling unit is connected with the signal input end of the PLC control cabinet. By means of the substation, the power grid occupation rate is reduced, the no-load loss and the load loss are greatly reduced, and the capacity increasing cost and the running cost are accordingly saved.
Description
Technical field
The present invention relates to distribution substation technical field, particularly relate to a kind of intelligent loaded capacity regulating voltage regulating transformer station.
Background technology
On market, existing transformer station all adopts No-load changer oil-filled transformer or Cast Resin Dry-Type Transformer, because transformer itself does not have load capacity and pressure regulating capacity transfer ability, so there are the following problems: 1, seasonality, period load variations amplitude greatly, cause transformer loss large; 2, along with regional load change, power supply buses voltage will change thereupon, can not ensure the supply power voltage quality to user; 3, automaticity is low, and power supply reliability is poor.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of intelligent loaded capacity regulating voltage regulating transformer station, and described transformer station reduces electrical network occupation rate, and no-load loss and load loss reduce greatly, thus saves expense of increasing capacity and running cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of intelligent loaded capacity regulating voltage regulating transformer station, it is characterized in that: described transformer station includes load capacity and pressure regulating transformer, high-tension switch cabinet, low-tension switch cabinet, current-voltage sampling unit and PLC control cabinet, described high-tension switch cabinet is connected by the high voltage input terminal of circuit breaker with described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is by being connected with the low-pressure line-outgoing end of described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is connected with load by air switch and current-voltage sampling unit, the control output end of described PLC control cabinet is connected with the switching control input end of high-tension switch cabinet and low-tension switch cabinet, described current-voltage sampling unit is connected with the signal input part of PLC control cabinet, PLC control cabinet is by the voltage of monitoring step down side, electric current judges current loads size, related constraint condition is judged according to capacity setting value, meet and impose a condition, send corresponding regulable control order to the loaded capacity regulating voltage regulating switch in loaded capacity regulating voltage regulating transformer, loaded capacity regulating voltage regulating switch is according to the reliable opening and closing movement of control command, complete inside transformer high, the star of low-voltage coil, angular transformation and string, conversion in parallel, do not needing under the state had a power failure, complete transformer capacity adjustment process, the capacity realizing capacity and pressure regulating transformer increases and decreases with the increase and decrease of load capacity and the Intelligent Transformation of load side voltage.
Further technical scheme is: described high-tension switch cabinet is connected with described loaded capacity regulating voltage regulating transformer with current limiting fuse by the on-load switch of series connection.
Further technical scheme is: described low-tension switch cabinet and multichannel air switch or switch with knifeshaped fuse are connected to loaded capacity regulating voltage regulating transformer between load.
Further technical scheme is: arrange in isosceles triangle between described loaded capacity regulating voltage regulating transformer, high-tension switch cabinet, low-tension switch cabinet.
Further technical scheme is: the set-up mode of described transformer has two kinds: transformer exposes by one, transformer is arranged in enclosed compartment by another kind, enclosed compartment adopts four perisporiums to add heat-barrier material, Double-layer clamp plate structure, the clerestory structure of top cover band air cushion or heat-barrier material, inside establish air duct, be equipped with and automatically force exhaust ventilator.
Further technical scheme is: be provided with Profibus-DP fieldbus in described PLC control cabinet.
The beneficial effect adopting technique scheme to produce is: the capacity of described capacity and pressure regulating transformer increases and decreases with the increase and decrease of load capacity and the conversion of voltage on line side, meet the requirement of heavy-load start, stress alternation operation, change the un-reasonable phenomenon of low load with strong power in the past, reduce electrical network occupation rate, no-load loss and load loss reduce greatly, thus save expense of increasing capacity and running cost.Improve the power factor of electrical network, reduce network loss.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
As shown in Figure 1, the invention discloses a kind of intelligent loaded capacity regulating voltage regulating transformer station, described transformer station includes load capacity and pressure regulating transformer, high-tension switch cabinet, low-tension switch cabinet, current-voltage sampling unit and PLC control cabinet, described high-tension switch cabinet is connected by the high voltage input terminal of circuit breaker with described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is by being connected with the low-pressure line-outgoing end of described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is connected with load by air switch and current-voltage sampling unit, the control output end of described PLC control cabinet is connected with the switching control input end of high-tension switch cabinet and low-tension switch cabinet, described current-voltage sampling unit is connected with the signal input part of PLC control cabinet, PLC control cabinet is by the voltage of monitoring step down side, electric current judges current loads size, related constraint condition is judged according to capacity setting value, meet and impose a condition, send corresponding regulable control order to the loaded capacity regulating voltage regulating switch in loaded capacity regulating voltage regulating transformer, loaded capacity regulating voltage regulating switch is according to the reliable opening and closing movement of control command, complete inside transformer high, the star of low-voltage coil, angular transformation and string, conversion in parallel, do not needing under the state had a power failure, complete transformer capacity adjustment process, the capacity realizing capacity and pressure regulating transformer increases and decreases with the increase and decrease of load capacity and the conversion of load side voltage.
Described box-type substation structurally, adopts modular manner, and each case becomes and can be combined by following various types; Looped network type or dual-power or terminal type is divided into by high-tension switch cabinet access electrical network pattern; " order font " or " Chinese character pin-shaped " is divided into by apparatus arrangement mode; Oil immersion full-sealed transformer or dry-type transformer is divided into by in-built transformer kind; Metal shell or non-metal shell is divided into by cabinet shell material; Air-generating on-load switch or pressure-operated load switch or vacuum type on-load switch or SF6 on-load switch is divided into by high-voltage switch gear form slection; Intelligent or compact etc. are divided into by intelligent system could be configured.
(1) layout
Be set up from cloth, hyperbaric chamber, transformer room, low-pressure chamber are arranged by " isosceles triangle ", compact conformation, are convenient to install addressing, operate and patrol and examine, particularly favourable when transformer room's arrangement multiple stage transformer; Arrange by " order font ", wiring more for convenience, therefore adopts mostly.
(2) high-voltage connection mode
High pressure (12kV) side, adopts on-load switch+current limiting fuse as the main protection of transformer, generally has looped network, duplicate supply and terminal three kinds of supply power modes, has two groups of plug-in fuses and the series connection of backup protection fuse to carry out segmentation limit protection.Must can be linked during the fusing of current limiting fuse one phase tripping three-phase load switch, phase-deficient operation do not occur.Line side on-load switch must be furnished with DC power supply (DC24V) motor-operating mechanism, can realize without self-starting under external AC power state.The current transformer of the required configuration detection fault current in looped network loop or transducer.
High-voltage switch gear selects the high product of the future with having automation equipment and intelligent interface of reliability: as SF6 on-load switch, pressure-operated load switch, vacuum load switch etc.
Ring network power supplying units is generally at least made up of three intervals, i.e. two ring cable turnover intervals and a transformer circuit interval.Wherein, on-load switch QLA and QLB, when isolated fault line segment, can recover the continuous power supply in loop in time; The fuse F be connected with on-load switch QLC shields when middle pressure/low pressure becomes device generation internal fault; QLC also plays isolation and ground connection effect to fuse and transformer.
(3) coupling of transformer and radiating treatment
Loaded capacity regulating voltage regulating transformer is adjusted capacity and pressure regulating switch by PLC control cabinet, thus it is high to complete transformer, the handoff procedure of low capacity, specific works principle is as follows: PLC control cabinet is by the voltage of monitoring step down side, electric current judges current loads size, related constraint condition is judged according to capacity setting value, meet and impose a condition, send corresponding regulable control order to loaded capacity-regulated switch, loaded capacity-regulated switch is according to the reliable opening and closing movement of control command, complete inside transformer high, the star of low-voltage coil, angular transformation and string, conversion in parallel, do not needing under the state had a power failure, complete transformer capacity adjustment process.Loaded capacity-regulated covert ratio two S11 type primary and secondary transformers, first reduce equipment purchasing and installation cost expense, and take up an area reduced space, and the construction period shortens, and operation maintenance workload obviously reduces.S11-ZT type is compared with loaded capacity regulating voltage regulating transformer S11 type common transformer simultaneously, and transformer noload losses declines more than 50%.
Transformer is provided with two kinds of modes: transformer exposes by one, and transformer is arranged in enclosed compartment by another kind.The latter transformer room is that anti-solar radiation makes room temperature raise, four perisporiums are adopted to add heat-barrier material, Double-layer clamp plate structure, design of cover becomes the clerestory structure of band air cushion or heat-barrier material, inside establishes air duct, is equipped with and automatically forces exhaust ventilator (axial flow blower or breadth blower fan).The unlatching of usual device and stopping, by the device for monitoring temperature automatic control of transformer room, the setting value of its temperature sets by 80% ~ 90% of allowable temperature; Under indoor normal temperature, dispel the heat by natural draft.
In order to ventilate, the casing of transformer room is generally provided with shutter.Shutter, air flow energy is entered, and dust is separated.What have also adds dust guard at shutter place, for preventing dust on the impact of insulation, mostly adds insulation protective hood in transformer junction.
(4) low-pressure side functional characteristics
Low pressure (0.4kV) side, outlet protection can join multichannel air switch or switch with knifeshaped fuse; Have microcomputer to control, automatic cycle switching reactive compensator, compensation capacity is generally 10 ~ 30% of transformer capacity; There is independent electrical energy metering tank.Low tension switch configuration intelligent controller can realize warning function, and signal element and operation can be provided to control, and also has table meter function simultaneously.Controller has the RS-485 interface of standard, can realize " four is distant " function of data transmission and monitoring management system.
(5) PLC control cabinet
Case becomes the PLC control cabinet adopted should configure power supply, interface device, communication media, control appliance (host computer, intelligent instrument etc.) to meet intelligentized requirement.PLC control cabinet is: adopt Profibus-DP standard, the components and parts (slave station) with ability to communicate are attached thereto by opening field bus technique, thus realize main website by bus to the remote measurement of switch, electrical network, adjustment, control, communication; Or adopt intelligent controller to carry out the measurement of Local or Remote, adjustment, control, communication to high and low pressure side.Consider the requirement of user to intelligent monitoring when system schema configures, adopt one of following two kinds of modes to carry out: 1) high and low pressure side configures PLC control cabinet respectively; 2) high and low pressure side unified configuration intelligent system.
The components and parts installation of PLC control cabinet, layout, field wiring etc. should meet relevant requirements, for electromagnetic compatibility (EMC), must adopt advanced Anti-Jamming Technique.The monitoring software write mainly comprises the remote control interface such as major loop, frame circuit breaker, control loop and power distribution system information.
The case change of equipment PLC control cabinet has following intelligent functions: a) show high-side system primary connection figure, reflect that each high-voltage switch gear divides, "on" position; B) " four is distant " function; C) system management.
(6) shell manufacturing process
The poor adhesive force of surface protecting layer, the life-span short general steel plate that constrains become for outdoor molding box.The employing corrosion resistant plate that hydrogen shell has or aluminium alloy plate or polrvinyl benzene composite board, and the employing of non-metal shell (as glass fiber reinforcement cement board, fiberglass reinforced plastics plate, autochromatic plate etc.) is a kind of fashion trend.When with glass fiber reinforcement cement board and fiberglass reinforced plastics plate, in order to daylighting and prevent rainwater drench into, top cover can be made ganoid preventing water drops edge.
Certainly, shell must be firm, and heat-proof quality is excellent, fire protection flame retarding, should be able to bear the impulsive force caused because of Internal faults arc, and its shape will be coordinated with surrounding enviroment with color as far as possible mutually.
Claims (6)
1. an intelligent loaded capacity regulating voltage regulating transformer station, it is characterized in that: described transformer station includes load capacity and pressure regulating transformer, high-tension switch cabinet, low-tension switch cabinet, current-voltage sampling unit and PLC control cabinet, described high-tension switch cabinet is connected by the high voltage input terminal of circuit breaker with described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is by being connected with the low-pressure line-outgoing end of described loaded capacity regulating voltage regulating transformer, described low-tension switch cabinet is connected with load by air switch and current-voltage sampling unit, the control output end of described PLC control cabinet is connected with the switching control input end of high-tension switch cabinet and low-tension switch cabinet, described current-voltage sampling unit is connected with the signal input part of PLC control cabinet, PLC control cabinet is by the voltage of monitoring step down side, electric current judges current loads size, related constraint condition is judged according to capacity setting value, meet and impose a condition, send corresponding regulable control order to the loaded capacity regulating voltage regulating switch in loaded capacity regulating voltage regulating transformer, loaded capacity regulating voltage regulating switch is according to control command opening and closing movement, complete inside transformer high, the star of low-voltage coil, angular transformation and string, conversion in parallel, do not needing under the state had a power failure, complete transformer capacity adjustment process, the capacity realizing capacity and pressure regulating transformer increases and decreases with the increase and decrease of load capacity and the Intelligent Transformation of load side voltage.
2. intelligent loaded capacity regulating voltage regulating transformer station according to claim 1, is characterized in that: described high-tension switch cabinet is connected with described loaded capacity regulating voltage regulating transformer with current limiting fuse by the on-load switch of series connection.
3. intelligent loaded capacity regulating voltage regulating transformer station according to claim 1, is characterized in that: described low-tension switch cabinet and multichannel air switch or switch with knifeshaped fuse are connected to loaded capacity regulating voltage regulating transformer between load.
4. intelligent loaded capacity regulating voltage regulating transformer station according to claim 1, is characterized in that: arrange in isosceles triangle between described loaded capacity regulating voltage regulating transformer, high-tension switch cabinet, low-tension switch cabinet.
5. intelligent loaded capacity regulating voltage regulating transformer station according to claim 1, it is characterized in that: the set-up mode of described transformer has two kinds: transformer exposes by one, transformer is arranged in enclosed compartment by another kind, enclosed compartment adopts four perisporiums to add heat-barrier material, Double-layer clamp plate structure, the clerestory structure of top cover band air cushion or heat-barrier material, inside establish air duct, be equipped with and automatically force exhaust ventilator.
6. intelligent loaded capacity regulating voltage regulating transformer station according to claim 1, is characterized in that: be provided with Profibus-DP fieldbus in described PLC control cabinet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510198809.4A CN104767140A (en) | 2015-04-24 | 2015-04-24 | Intelligent on-load capacity regulating and voltage regulating box-type substation |
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| CN201510198809.4A CN104767140A (en) | 2015-04-24 | 2015-04-24 | Intelligent on-load capacity regulating and voltage regulating box-type substation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921160A (en) * | 2017-04-06 | 2017-07-04 | 深圳市深泰明科技有限公司 | A kind of loop network control cabinet, distribution network control system, distribution network control method |
| CN108011375A (en) * | 2016-11-02 | 2018-05-08 | 南通夏威宜电气有限公司 | New special photovoltaic step-up transformer |
| CN108736360A (en) * | 2017-04-18 | 2018-11-02 | 北京南瑞电研华源电力技术有限公司 | A kind of integration loaded capacity regulating voltage regulating power distribution station |
| CN111193266A (en) * | 2018-11-14 | 2020-05-22 | 上亿电机有限公司 | Electricity-saving voltage stabilizer |
| CN111355235A (en) * | 2020-03-23 | 2020-06-30 | 四川铭学智能技术有限公司 | Mobile automatic power distribution switching device based on visual operation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626444B2 (en) * | 1990-05-21 | 1994-04-06 | 日新電機株式会社 | Substation for small capacity distribution |
| CN202111656U (en) * | 2011-06-27 | 2012-01-11 | 北京电研华源电力技术有限公司 | Control system for 35kV on-load capacity and voltage regulating transformer |
| CN203301019U (en) * | 2013-05-20 | 2013-11-20 | 南阳市鑫特电气有限公司 | On-load capacity-regulating and voltage-regulating prefabricated European-type substation |
| CN204271512U (en) * | 2014-11-29 | 2015-04-15 | 平顶山天晟电气有限公司 | A kind of intelligent loaded capacity-regulated transformer station |
| CN204597314U (en) * | 2015-04-24 | 2015-08-26 | 河北高晶电器设备有限公司 | Intelligent loaded capacity regulating voltage regulating box-type substation |
-
2015
- 2015-04-24 CN CN201510198809.4A patent/CN104767140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0626444B2 (en) * | 1990-05-21 | 1994-04-06 | 日新電機株式会社 | Substation for small capacity distribution |
| CN202111656U (en) * | 2011-06-27 | 2012-01-11 | 北京电研华源电力技术有限公司 | Control system for 35kV on-load capacity and voltage regulating transformer |
| CN203301019U (en) * | 2013-05-20 | 2013-11-20 | 南阳市鑫特电气有限公司 | On-load capacity-regulating and voltage-regulating prefabricated European-type substation |
| CN204271512U (en) * | 2014-11-29 | 2015-04-15 | 平顶山天晟电气有限公司 | A kind of intelligent loaded capacity-regulated transformer station |
| CN204597314U (en) * | 2015-04-24 | 2015-08-26 | 河北高晶电器设备有限公司 | Intelligent loaded capacity regulating voltage regulating box-type substation |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011375A (en) * | 2016-11-02 | 2018-05-08 | 南通夏威宜电气有限公司 | New special photovoltaic step-up transformer |
| CN106921160A (en) * | 2017-04-06 | 2017-07-04 | 深圳市深泰明科技有限公司 | A kind of loop network control cabinet, distribution network control system, distribution network control method |
| CN106921160B (en) * | 2017-04-06 | 2023-11-07 | 深圳市深泰明科技有限公司 | Ring network control cabinet, power distribution network control system and power distribution network control method |
| CN108736360A (en) * | 2017-04-18 | 2018-11-02 | 北京南瑞电研华源电力技术有限公司 | A kind of integration loaded capacity regulating voltage regulating power distribution station |
| CN111193266A (en) * | 2018-11-14 | 2020-05-22 | 上亿电机有限公司 | Electricity-saving voltage stabilizer |
| CN111355235A (en) * | 2020-03-23 | 2020-06-30 | 四川铭学智能技术有限公司 | Mobile automatic power distribution switching device based on visual operation |
| CN111355235B (en) * | 2020-03-23 | 2024-03-01 | 四川铭学智能技术有限公司 | Mobile power distribution automatic switching device based on visual operation |
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Application publication date: 20150708 |