CN103324859A - Module-combination-based device and method for estimating substation electric secondary cable use amount - Google Patents
Module-combination-based device and method for estimating substation electric secondary cable use amount Download PDFInfo
- Publication number
- CN103324859A CN103324859A CN2013102774322A CN201310277432A CN103324859A CN 103324859 A CN103324859 A CN 103324859A CN 2013102774322 A CN2013102774322 A CN 2013102774322A CN 201310277432 A CN201310277432 A CN 201310277432A CN 103324859 A CN103324859 A CN 103324859A
- Authority
- CN
- China
- Prior art keywords
- module
- cable
- place
- electric
- secondary cable
- 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.)
- Granted
Links
Images
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a module-combination-based device and method for estimating substation electric secondary cable use amount. The device comprises a substation electric device, an electric secondary cable calculating mechanism and a data information unit. The substation electric device divides a substation into module groups according to voltage levels, divides power devices of each voltage level into modules according to different intervals, and divides the secondary cable of each module into a cabinet-cabinet cable part, a cabinet-site cable part and a site-site cable part; secondary cable use amount information of each module is output to the electric secondary cable calculating mechanism through the data information unit so as to estimate use amount the cabinet-cabinet cable part, the cabinet-site cable part and the site-site cable part, and estimated new secondary cable use amount of each module is summed up to obtain the new electric secondary cable use amount of the substation. By the device and the method, manpower cost for electric secondary cable estimation is lowered, work efficiency of cable estimation is increased, and estimation error is lowered.
Description
Technical field
The present invention relates to a kind of transformer station's electric secondary cable consumption estimating device and method based on module combinations, belong to the secondary cable dosage analysis technical field of transformer station.
Background technology
Along with socioeconomic development, need for electricity is increasing, and in recent years electricity power engineering construction keeps larger investment always, and wherein transformer substation construction is the important component part of power grid construction.In substation project is built, the large usage quantity of electric secondary cable, according to incompletely statistics, the investment of electric secondary cable accounts for secondary electrical system gross investment approximately about 25～30%.According to projects development process, when feasibility study, concept phase and construction bid, need calculate electric secondary cable total amount, just establish the foundation of budgetary estimate and the calculating of construction bid quantities as engineering.But figure not yet begins because of this staged construction, can't draw up the cable inventory, only can estimate the consumption waste heat of cable estimates, and the error that cable is estimated directly has influence on the contract amount of general contract of civil engineering, cause certain risk for expense and the cost control of project, more be conducive to engineering early stage to the optimal control of cost in this stage to the estimation error of cable amount is more little.
In present electricity power engineering, following two kinds of methods are adopted in the estimation of transformer station's electric secondary cable consumption usually:
First method, the engineering with similar scale of going into operation contrasted statistics with reference to be completed in the past, because the equipment layout of different substation engineering, place size, system etc. are different, the result of this method statistic is based upon in the past on the engineering practical basis, usually error is more than 10%, so that the method is estimated the resultant error that is larger, and shortage data supporting, cogency is not enough, calculates to buying, the construction bid quantities of Budgetary Estimates establishment, cable and causes adverse influence.
Second method, the electric secondary cable is added up according to substation project in the past by organizing a large amount of manpowers, because of the electric secondary cable model in the transformer station numerous, lay the path various, and different project scales are different, so that the estimation very complicated of cable consumption, time and effort consuming, accurately error can be dropped to below 10% if calculate, but need expend a large amount of manpowers and time.
In sum: there is following problem in the predictor method of electric secondary cable now:
1. can't form accurately the electric secondary cable and estimate basis and technical information file, reference is poor, inefficiency, and human cost expends greatly.
2. in the different substation projects, its shared site area size is different, therefore, by outdoor intersite primary equipment to main control room also each is different apart from length, this just so that secondary cable to lay the length in path different because of different transformer station's floor areas, and then make by going to estimate that with reference to the data of completed project in the past the method ubiquity of a newly-built transformer station electric secondary cable consumption is relatively poor, and be difficult for forming the data basis and use or reference as new construction.
3. for different transformer stations, the layout of primary equipment is also incomplete same in the place, in different transformer stations, the arrangement of primary equipment, position, spacing etc. are different, therefore, to the electric secondary cable length of main control room or relay bungalow and lay the path and be not quite similar, and it is larger to carry out the estimation resultant error that the method for cable estimation draws by the scale of reference Sinilar engineering by primary equipment, usually more than 10%.
Summary of the invention
One of purpose of the present invention, in order to overcome the shortcoming that the predictor method error that has the electric secondary cable now is large, waste time and energy, a kind of transformer station's electric secondary cable consumption estimating device based on module combinations is provided, this device can go out the electric secondary cable consumption of transformer station by express statistic, occurs error when avoiding people to calculate.
Two of purpose of the present invention provides the transformer station's electric secondary cable consumption predictor method based on module combinations a kind of optimization, that statistical precision is high.The method is easy, easy to operate, time saving and energy saving, can go out electric secondary cable consumption by express statistic, reduces error thereby improve statistical accuracy.
One of purpose of the present invention can reach by taking following technical scheme:
Transformer station's electric secondary cable consumption estimating device based on module combinations, comprise Substation Electric Equipment, electric secondary cable measuring and calculating mechanism and data message unit, it is characterized in that: described Substation Electric Equipment comprises at least three electric pressure EM equipment module groups, each electric pressure EM equipment module group comprises a plurality of different interval, each module is made of different intervals, each disparate modules produces secondary cable consumption information, the input end of the output terminal connection data message unit of each disparate modules; Electric secondary cable measuring and calculating mechanism is made of data acquisition unit, data processing unit, statistic unit and output unit, the output terminal of the input end connection data message unit of data acquisition unit, the output terminal of data acquisition unit is by the input end of data processing unit connection statistics unit, and the output terminal of statistic unit connects the input end of output unit; Be provided with passing data module and field data module in the data message unit, data processing unit from passing data module read data information, optionally writes data message the field data module to form new data message unit and to calculate the electric secondary cable consumption of variant module by data acquisition unit.
Further scheme of the present invention: described electric pressure EM equipment module group refers to transformer station is divided into 500kV, 220kV and three electric pressure EM equipment module of 35kV group.
Further scheme of the present invention, to each module, the position by the cable two ends are laid is screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts with each Module Division.
Further scheme of the present invention: described each electric pressure EM equipment module group is made of a plurality of disparate modules, refers to:
1) in the 500kV electric pressure, is divided into the complete string module of 500kV circuit-transformer, the complete string module of 500kV line-line, the imperfect string module of 500kV circuit, the imperfect string module of 500kV transformer, 500kV high-voltage shunt reactor module, 500kV bus and voltage transformer (VT) module and 500kV power distribution equipment module by different interval;
2) in the 220kV electric pressure, be divided into 220kV line module, 220kV mother module, 220kV segmentation module, 220kV bus and voltage transformer (VT) module and 220kV power distribution equipment module by different interval;
3) in the 35kV electric pressure, be divided into 35kV capacitor pack module, 35kV Reactor banks module, 35kV station transformer module, 35kV bus and voltage transformer (VT) module and 35kV power distribution equipment module by different power equipments.
Two of purpose of the present invention can reach by taking following technical scheme:
Transformer station's electric secondary cable consumption predictor method based on module combinations is characterized in that:
1) divides module
Comprise transformer station is divided the module group according to electric pressure, and the module group of each electric pressure is divided module by different interval;
2) cable of each module is classified
To the cable of each module, the position by the cable two ends are laid is divided into screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts with electric secondary cable in the substation project;
3) set up the cable data list of each module
The actual cable data of some transformer stations of at first going into operation according to being completed, set up each module secondary cable tables of data, data in the table are according to step 2) principle carry out statistic of classification, then take the data of each module secondary cable tables of data as the basis, estimation screen cabinet-screen cabinet cable, shield cabinet-place cable and place-place cable consumption; To comprehensively set up the data of each module secondary cable tables of data as the basic data of estimating other substation secondary cables;
4) the screen cabinet that obtains according to step 3)-screen cabinet cable, screen cabinet-place cable and place-place cable consumption are estimated out the secondary cable consumption of each module, the secondary cable consumption addition of described modules are obtained the electric secondary cable consumption of transformer station.
Two of purpose of the present invention can also be achieved through the following technical solutions:
Further scheme of the present invention: the described division module of step 1), that transformer station is divided the module group according to electric pressure, refer to first transformer station is divided into 500kV, 220kV and three electric pressure modules of 35kV group, again the module group of each electric pressure is divided module by different interval.
Further scheme of the present invention: described module group with each electric pressure is divided module by different interval, refers to:
1) in the 500kV electric pressure, is divided into the complete string module of 500kV circuit-transformer, the complete string module of 500kV line-line, the imperfect string module of 500kV circuit, the imperfect string module of 500kV transformer, 500kV high-voltage shunt reactor module, 500kV bus and voltage transformer (VT) module and 500kV power distribution equipment module by different interval;
2) in the 220kV electric pressure, be divided into 220kV line module, 220kV mother module, 220kV segmentation module, 220kV bus and voltage transformer (VT) module and 220kV power distribution equipment module by different interval;
3) in the KV35kV electric pressure, be divided into 35kV capacitor pack module, 35kV Reactor banks module, 35kV station transformer module, 35kV bus and voltage transformer (VT) module and 35kV power distribution equipment module by different interval.
Further scheme of the present invention: when estimating the secondary cable consumption that shields cabinet-place part in each module, according to the secondary cable radical in screen cabinet-place and the secondary cable laid length L in screen cabinet-place
AvDraw the secondary cable consumption in screen cabinet-place; The secondary cable laid length L in screen cabinet-place
AvLay path by the secondary cable of measuring corresponding screen cabinet-place in each module at the transformer station master plan and calculate mutually the secondary cable laid length L that shields cabinet-place in should module
Av, expression formula is as follows:
In the formula, L
11By the secondary wiring terminals case at the distal-most end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
12By the secondary wiring terminals case at the most proximal end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
mBe the vertical height of the secondary terminals case in the place, L
nBe the vertical height of secondary screen cabinet in the pulpit, L
hStory height for ground, pulpit; The site plan ratio is 1:n, and the measurement long measure is mm.
Further scheme of the present invention: the described division module of step 1) comprises that also the part of will stride different electric pressures is divided into DC power system module, main-transformer module, 10kV and 380V station power use system module.
Further scheme of the present invention: the described division module of step 1) also comprises common part is divided into mains lighting supply module and other EM equipment module between interchange uninterruptible power system UPS module, clock synchronization system GPS module, phasor measurement system PMU module, protection information substation system module, fault localization system module, screen.
Beneficial effect of the present invention:
1, the present invention is based on that Substation Electric Equipment comprises at least three electric pressure EM equipment module groups in transformer station's electric secondary cable consumption estimating device of module combinations, each electric pressure comprises a plurality of different interval, realize the secondary cable consumption information of each module and the information interaction of electric secondary cable measuring and calculating mechanism by the data message unit, mechanism carries out statistical treatment to the secondary cable consumption information of each module by the measuring and calculating of electric secondary cable, the electric secondary cable that obtains transformer station is estimated consumption, has utilized the power station secondary cable usage data of being completed to set up the electric secondary cable usage data storehouse of working as time transformer station when carrying out the module combined type statistics.This device can rapid Estimation go out the secondary cable consumption, the error of calculation occurs when having avoided simultaneously people to add up, and has reduced the error of cable estimated data.The design tool that this device can be used as the electric secondary specialty uses, and just establishes stage, construction bid estimation of approximate quantities in engineering survey design item especially over contract engineering project.
2, the present invention is based on transformer station's electric secondary cable consumption predictor method of module combinations, the method adopts the statistical of module combinations, transformer station is divided the module group according to electric pressure, and the module group of each electric pressure is pressed different interval divide module, the cable of each module, the position of laying by the cable two ends, electric secondary cable in the substation project is divided into screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts adds up, the secondary cable consumption addition of modules is obtained the electric secondary cable consumption of transformer station.This method both guaranteed on the one hand the different substation engineering initial stage to electric secondary cable statistical accuracy; On the other hand again by the follow-up power plant construction of being applied as of this method data that provide the foundation, thereby reduced the human cost that the electric secondary cable is estimated, improved the work efficiency of cable estimation, electric secondary cable predictor error is controlled at below 5%, be the Precise control of turnkey job expense, maximization creates favorable conditions to the project profit.
3, the inventive method is simple, and is time saving and energy saving, has higher practical value, thereby the present invention has ubiquity, practicality in substation project, guaranteed that the present invention has the value that can apply in substation project.
Description of drawings
Fig. 1 is structure block diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
The transformer station's electric secondary cable consumption estimating device based on module combinations that relates to reference to Fig. 1 the present embodiment, comprise Substation Electric Equipment 1, electric secondary cable measuring and calculating mechanism 3 and data message unit 2, described Substation Electric Equipment 1 comprises three electric pressure EM equipment module group 1-1, each electric pressure EM equipment module group 1-1 comprises a plurality of different interval, each module is made of different intervals, each disparate modules produces secondary cable consumption information, the input end of the output terminal connection data message unit 2 of each disparate modules; Electric secondary cable measuring and calculating mechanism 3 is made of data acquisition unit 3-1, data processing unit 3-2, statistic unit 3-3 and output unit 3-4, the output terminal of the input end connection data message unit 2 of data acquisition unit 3-1, the output terminal of data acquisition unit 3-1 is by the input end of data processing unit 3-2 connection statistics unit 3-3, and the output terminal of statistic unit 3-3 connects the input end of output unit 3-4; Be provided with passing data module 2-1 and field data module 2-2 in the data message unit 2, data processing unit 3-2 from passing data module 2-1 read data information, optionally writes data message field data module 2-2 to form new data message unit 2 and to calculate the electric secondary cable consumption of variant module by data acquisition unit 3-1.Data in the real data composition data message unit 2 of a plurality of substation projects that have been completed among the passing data module 2-1.
According to each module, the position of laying by the cable two ends, the secondary cable data statistic of each module is added up, set up to each Module Division for screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts, as shown in table 2, comprise the secondary cable consumption of screen cabinet-screen cabinet, the secondary cable consumption in place-place in the table, secondary cable radical, the laid length in screen cabinet-place.In the secondary cable data statistic of each module in data message unit 2.
Described electric pressure EM equipment module group 1-1 refers to transformer station is divided into 500kV, 220kV and three electric pressure EM equipment module of 35kV group.
Transformer station's electric secondary cable consumption predictor method based on module combinations:
1) divides module
Comprise transformer station is divided the module group according to electric pressure, and the module group of each electric pressure is divided module by different interval, as shown in table 1;
The described division module of step 1) is that transformer station is divided the module group according to electric pressure, refers to first transformer station is divided into 500kV, 220kV and three electric pressure modules of 35kV group, again the module group of each electric pressure is divided module by different interval.
Described module group with each electric pressure is divided module by different interval, refers to:
In the 500kV electric pressure, be divided into the complete string module of 500kV circuit-transformer, the complete string module of 500kV line-line, the imperfect string module of 500kV circuit, the imperfect string module of 500kV transformer, 500kV high-voltage shunt reactor module, 500kV bus and voltage transformer (VT) module and 500kV power distribution equipment module by different interval (by transformer, string, power distribution equipment and bus and voltage transformer (VT));
The complete string of 500kV line-line refers to half breaker of 500kV AC distribution place employing 3/2() connection type, every string is 3 isolating switchs, can connect two transmission line circuits, when being circuit with a string interior new upper 3 isolating switchs and two outlets in the same period engineering, claim this string to be the complete string of 500kV line-line; When one of two outlet claim that this string is the complete string of 500kV circuit-transformer for circuit, one during for main-transformer.
The imperfect string of 500kV circuit: half breaker of 3/2(is adopted in 500kV AC distribution place) connection type, every string is 3 isolating switchs, can connect two transmission line circuits, when being circuit with a string interior new upper 2 isolating switchs and outlet in the same period engineering, claim this string to be the imperfect string of 500kV circuit; When outlet is main-transformer, claim this string to be the imperfect string of 500kV transformer.
In the 220KV electric pressure, be divided into 220kV line module, 220kV mother module, 220kV segmentation module, 220kV bus and voltage transformer (VT) module and 220kV power distribution equipment module by different interval;
The 220kV circuit refers to the 220kV ultra-high-tension power transmission line in electric system.
The 220kV mother refers to the 220kV bus contact equipment (comprising the primary equipments such as isolating switch, disconnecting link are arranged) in electric system.
The 220kV segmentation module refers to the 220kV bus section equipment (comprising the primary equipments such as isolating switch, disconnecting link are arranged) in electric system.
In the 35kV electric pressure, be divided into 35kV capacitor pack module, 35kV Reactor banks module, 35kV station transformer module, 35kV bus and voltage transformer (VT) module and 35kV power distribution equipment module by different power equipments.
The described division module of step 1) comprises that also the part of will stride different electric pressures is divided into DC power system module, main-transformer module, 10kV and 380V station power use system module etc.
The described division module of step 1) also comprises common part is divided into mains lighting supply module, bus differential protection module, failure wave-recording module, protection multiple connection interface panel module and other EM equipment module between interchange uninterruptible power system UPS module, clock synchronization system GPS module, phasor measurement system PMU module, protection information substation system module, fault localization system module, screen.
Table 1: the Module Division table of transformer station
2) cable of each module is classified
Cable to each module, the position of laying by the cable two ends, electric secondary cable in the substation project is divided into screen cabinet-screen cabinet cable (contacting cable between screen cabinet-screen cabinet), screen cabinet-place cable (contacting cable between screen cabinet-place terminal box) and place-place cable (contacting cable between place-place equipment) three parts, and (the screen cabinet refers to secondary screen cabinet in relay bungalow or the main control room, and this paper is called for short the screen cabinet; The place refers to primary equipment fabricating yard in the transformer station, also claims the switch place, and this paper is called for short the place);
3) set up the cable data list of each module
The actual cable data of some transformer stations of at first going into operation according to being completed, set up each module linear quadratic control cable data table, data in the table are according to step 2) principle carry out statistic of classification, as shown in table 2, comprise the secondary cable consumption of screen cabinet-screen cabinet, the secondary cable consumption in place-place in the table, secondary cable radical, the laid length in screen cabinet-place.Then take the data of each module secondary cable tables of data as the basis, estimation screen cabinet-screen cabinet cable, shield cabinet-place cable and place-place cable consumption; The data of comprehensively setting up each module secondary cable tables of data as the basic data of estimating other substation secondary cables, are calculated the secondary cable consumption that shields cabinet-screen cabinet in each module and the secondary cable consumption in place-place.
The screen cabinet of the described screen cabinet-secondary cable of screen cabinet and the secondary cable usage data in the place-place employing Practical Project-secondary cable of screen cabinet and the secondary cable consumption statistical study in place-place draw through Practical Project to be verified, for different substation projects, its cable uses total amount to be more or less the same, error is less, therefore shields the secondary cable of cabinet-screen cabinet and the secondary cable consumption in place-place and adopts the basic data that comes from the secondary cable tables of data.
When estimating the secondary cable consumption that shields cabinet-place part in each module, the radical of secondary cable by screen cabinet-place multiply by the secondary cable laid length L in screen cabinet-place
AvDraw the secondary cable consumption in screen cabinet-place.
The secondary cable laid length L in screen cabinet-place
AvBecause of different transformer stations, its place size, the shape of standing and distinguishing, the layouts of equipment etc. are different, in order to reduce above-mentioned factor to the impact of cable predictor error as far as possible, for this partial cables of screen cabinet-place, the cable length computing formula has been proposed, reduce the place size, arrangement, the impact that cable run is measured cable length, so the secondary cable laid length in screen cabinet-place lays path by the secondary cable of measuring corresponding screen cabinet-place in each module at the transformer station master plan and calculates mutually the secondary cable laid length L that shields cabinet-place in should module
Av, expression formula is as follows:
In the formula, L
11By the secondary wiring terminals case at the distal-most end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
12By the secondary wiring terminals case at the most proximal end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
mBe the vertical height of the secondary terminals case in the place, L
nBe the vertical height of secondary screen cabinet in the pulpit, L
hStory height for ground, pulpit; The site plan ratio is 1:n, and the measurement long measure is mm.
Above-mentioned computing method, the equipment layout, place size, the conduit line that fully take into account transformer station move towards, shield the engineering actual conditions such as cabinet height, cable duct height, have reacted more accurately the secondary cable laid length L in screen cabinet-place
Av
Table 2: each module linear quadratic control cable data table
4) the screen cabinet that obtains according to step 3)-screen cabinet cable, screen cabinet-place cable and place-place cable consumption are estimated out the secondary cable consumption of each module, the secondary cable consumption addition of described modules are obtained the electric secondary cable consumption of transformer station.
The electric secondary cable adopts budget method of the present invention in the new construction, at first divides 500kV, 220kV and 35kV Three Estate module group according to electric pressure, again the module group of each electric pressure is divided module by different interval; Then the cable consumption of modules is added up by the secondary cable of screen cabinet-screen cabinet, the secondary cable in screen cabinet-place and the secondary cable in place-place, wherein shielded the basic data of the secondary cable consumption employing secondary cable tables of data in the secondary cable of cabinet-screen cabinet and place-place.The secondary cable consumption in screen cabinet-place is by the secondary cable radical in statistics screen cabinet-place and the secondary cable laid length L in screen cabinet-place
AvDraw the secondary cable consumption in screen cabinet-place.The secondary cable laid length L in screen cabinet-place
AvThe cable run length of employing corresponding screen cabinet-place equipment in transformer station's each module of master plan measurement, the secondary cable laid length L in screen cabinet-place
AvExpression formula as follows:
Adopt this formula just can calculate easily the secondary cable consumption in the screen cabinet-place of corresponding module; The cable consumption that last actual scale according to new construction is added up modules can calculate the cable consumption of whole engineering, and this programme is through the Practical Project checking, and cable consumption error actual in its result of calculation and the engineering is all below 5%.
Claims (10)
1. based on transformer station's electric secondary cable consumption estimating device of module combinations, comprise Substation Electric Equipment (1), electric secondary cable measuring and calculating mechanism (3) and data message unit (2), it is characterized in that: described Substation Electric Equipment (1) comprises at least three electric pressure EM equipment module groups (1-1), each electric pressure EM equipment module group (1-1) comprises a plurality of different interval, each module is made of different intervals, each disparate modules produces secondary cable consumption information, the input end of the output terminal connection data message unit (2) of each disparate modules; Electric secondary cable measuring and calculating mechanism (3) is made of data acquisition unit (3-1), data processing unit (3-2), statistic unit (3-3) and output unit (3-4), the output terminal of the input end connection data message unit (2) of data acquisition unit (3-1), the output terminal of data acquisition unit (3-1) is by the input end of data processing unit (3-2) connection statistics unit (3-3), and the output terminal of statistic unit (3-3) connects the input end of output unit (3-4); Be provided with passing data module (2-1) and field data module (2-2) in the data message unit (2), data processing unit (3-2) from passing data module (2-1) read data information, optionally writes data message field data module (2-2) to form new data message unit (2) and to calculate the electric secondary cable consumption of variant module by data acquisition unit (3-1).
2. the transformer station's electric secondary cable consumption estimating device based on module combinations according to claim 1, it is characterized in that: described electric pressure EM equipment module group (1-1) refers to transformer station is divided into 500kV, 220kV and three electric pressure EM equipment module of 35kV group.
3. the transformer station's electric secondary cable consumption estimating device based on module combinations according to claim 1 and 2, it is characterized in that, to each module, the position by the cable two ends are laid is screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts with each Module Division.
4. the transformer station's electric secondary cable consumption estimating device based on module combinations according to claim 2, it is characterized in that: described each electric pressure EM equipment module group (1-1) is made of a plurality of disparate modules, refers to:
1) in the 500kV electric pressure, is divided into the complete string module of 500kV circuit-transformer, the complete string module of 500kV line-line, the imperfect string module of 500kV circuit, the imperfect string module of 500kV transformer, 500kV high-voltage shunt reactor module, 500kV bus and voltage transformer (VT) module and 500kV power distribution equipment module by different interval;
2) in the 220kV electric pressure, be divided into 220kV line module, 220kV mother module, 220kV segmentation module, 220kV bus and voltage transformer (VT) module and 220kV power distribution equipment module by different interval;
3) in the 35kV electric pressure, be divided into 35kV capacitor pack module, 35kV Reactor banks module, 35kV station transformer module, 35kV bus and voltage transformer (VT) module and 35kV power distribution equipment module by different power equipments.
5. based on transformer station's electric secondary cable consumption predictor method of module combinations, it is characterized in that:
1) divides module
Comprise transformer station is divided the module group according to electric pressure, and the power equipment of each electric pressure is divided module by different interval;
2) cable of each module is classified
To the cable of each module, the position by the cable two ends are laid is divided into screen cabinet-screen cabinet cable, screen cabinet-place cable and place-place cable three parts with electric secondary cable in the substation project;
3) set up the cable data list of each module
The actual cable data of the transformer station of at first going into operation according to being completed, set up each module secondary cable tables of data, data in the table are according to step 2) principle carry out statistic of classification, then take the data of each module secondary cable tables of data as the basis, estimation screen cabinet-screen cabinet cable, shield cabinet-place cable and place-place cable consumption; To comprehensively set up the data of each module secondary cable tables of data as the basic data of estimating other substation secondary cables;
4) the screen cabinet that obtains according to step 3)-screen cabinet cable, screen cabinet-place cable and place-place cable consumption are estimated out the secondary cable consumption of each module, the secondary cable consumption addition of described modules are obtained the electric secondary cable consumption of transformer station.
6. the transformer station's electric secondary cable consumption predictor method based on module combinations according to claim 5, it is characterized in that: the described division module of step 1), that transformer station is divided the module group according to electric pressure, refer to first transformer station is divided into 500kV, 220kV and three electric pressure modules of 35kV group, again the module group of each electric pressure is divided module by different interval.
7. the transformer station's electric secondary cable consumption predictor method based on module combinations according to claim 6 is characterized in that: described power equipment with each electric pressure is divided module by different interval, refers to:
1) in the 500kV electric pressure, is divided into the complete string module of 500kV circuit-transformer, the complete string module of 500kV line-line, the imperfect string module of 500kV circuit, the imperfect string module of 500kV transformer, 500kV high-voltage shunt reactor module, 500kV bus and voltage transformer (VT) module and 500kV power distribution equipment module by different interval;
2) in the 220kV electric pressure, be divided into 220kV line module, 220kV mother module, 220kV segmentation module, 220kV bus and voltage transformer (VT) module and 220kV power distribution equipment module by different interval;
3) in the 35KV electric pressure, be divided into 35kV capacitor pack module, 35kV Reactor banks module, 35kV station transformer module, 35kV bus and voltage transformer (VT) module and 35kV power distribution equipment module by different interval.
8. according to claim 6 or 7 described transformer station's electric secondary cable consumption predictor methods based on module combinations, it is characterized in that: when estimating the secondary cable consumption that shields cabinet-place part in each module, according to the secondary cable radical in screen cabinet-place and the secondary cable laid length L in screen cabinet-place
AvDraw the secondary cable consumption in screen cabinet-place; The secondary cable laid length L in screen cabinet-place
AvLay path by the secondary cable of measuring corresponding screen cabinet-place in each module at the transformer station master plan and calculate mutually the secondary cable laid length L that shields cabinet-place in should module
Av, expression formula is as follows:
In the formula, L
11By the secondary wiring terminals case at the distal-most end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
12By the secondary wiring terminals case at the most proximal end interval, place in the same module of the screen cabinet in the pulpit the length of cable run of process, L
mBe the vertical height of the secondary terminals case in the place, L
nBe the vertical height of secondary screen cabinet in the pulpit, L
hStory height for ground, pulpit; The site plan ratio is 1:n, and the measurement long measure is mm.
9. the transformer station's electric secondary cable consumption predictor method based on module combinations according to claim 5, it is characterized in that: the described division module of step 1) comprises that also the part of will stride different electric pressures is divided into DC power system module, main-transformer module, 10kV and 380V station power use system module.
10. the transformer station's electric secondary cable consumption predictor method based on module combinations according to claim 5; it is characterized in that: the described division module of step 1) also comprises common part is divided into mains lighting supply module and other EM equipment module between interchange uninterruptible power system UPS module, clock synchronization system GPS module, phasor measurement system PMU module, protection information substation system module, fault localization system module, screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277432.2A CN103324859B (en) | 2013-07-03 | 2013-07-03 | Module-combination-based device and method for estimating substation electric secondary cable use amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277432.2A CN103324859B (en) | 2013-07-03 | 2013-07-03 | Module-combination-based device and method for estimating substation electric secondary cable use amount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103324859A true CN103324859A (en) | 2013-09-25 |
| CN103324859B CN103324859B (en) | 2017-04-12 |
Family
ID=49193598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310277432.2A Active CN103324859B (en) | 2013-07-03 | 2013-07-03 | Module-combination-based device and method for estimating substation electric secondary cable use amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103324859B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104268368A (en) * | 2014-08-22 | 2015-01-07 | 湖北省电力勘测设计院 | Optimal construction method of photovoltaic power station |
| CN105811320A (en) * | 2016-03-15 | 2016-07-27 | 中国能源建设集团江苏省电力设计院有限公司 | Length estimation method for secondary cables or optical cables of substation |
| CN105894187A (en) * | 2016-03-31 | 2016-08-24 | 国网福建省电力有限公司 | Transformer station technical reconstruction engineering automatic design system |
| CN111832140A (en) * | 2020-08-10 | 2020-10-27 | 中国华能集团清洁能源技术研究院有限公司 | New energy transformer substation secondary cable arrangement method and device based on typical module |
-
2013
- 2013-07-03 CN CN201310277432.2A patent/CN103324859B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| 吴文军: "数字化变电站设计方案对二次系统的改进", 《华东电力》 * |
| 施世鸿: "高压输电线路故障测距研究", 《中国优秀硕士学位论文全文数据库》 * |
| 马孝平等: "变电站二次系统设计中值得注意的几个问题", 《电力建设》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104268368A (en) * | 2014-08-22 | 2015-01-07 | 湖北省电力勘测设计院 | Optimal construction method of photovoltaic power station |
| CN104268368B (en) * | 2014-08-22 | 2017-05-10 | 湖北省电力勘测设计院 | Optimal construction method of photovoltaic power station |
| CN105811320A (en) * | 2016-03-15 | 2016-07-27 | 中国能源建设集团江苏省电力设计院有限公司 | Length estimation method for secondary cables or optical cables of substation |
| CN105894187A (en) * | 2016-03-31 | 2016-08-24 | 国网福建省电力有限公司 | Transformer station technical reconstruction engineering automatic design system |
| CN105894187B (en) * | 2016-03-31 | 2021-05-04 | 国网福建省电力有限公司 | Automatic design system for transformer substation technical improvement project |
| CN111832140A (en) * | 2020-08-10 | 2020-10-27 | 中国华能集团清洁能源技术研究院有限公司 | New energy transformer substation secondary cable arrangement method and device based on typical module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103324859B (en) | 2017-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cataliotti et al. | An innovative measurement approach for load flow analysis in MV smart grids | |
| CN103777097A (en) | Testing platform and method generally used for whole process of low voltage user side distributed power source grid connection | |
| CN103324859A (en) | Module-combination-based device and method for estimating substation electric secondary cable use amount | |
| CN104537936A (en) | Low-voltage transformer area simulation practical training device for rural network low-voltage distribution box | |
| CN102495315A (en) | Method and system for split-phase line loss measurement | |
| CN105066873A (en) | Breaker contact engagement depth measuring apparatus with accurate measurement | |
| CN102856896B (en) | On-line analytical method for direct-current transmission loss | |
| CN105811320B (en) | A kind of length evaluation method of substation secondary cable or optical cable | |
| CN104361796B (en) | Electric energy metering device simulation training platform | |
| CN102931657A (en) | Measuring and calculating device for line loss of power distribution network | |
| CN109444531A (en) | Relay protection sample examination system and its sample examination method based on synchronous clock synchronization | |
| CN105637730B (en) | The method of electric system and the direction of energy and/or voltage in control electric system | |
| CN105301449A (en) | Portable line loss measuring and calculating apparatus for power distribution network | |
| CN105184508A (en) | Harmonic measuring point optimal allocation method for distribution network | |
| CN113945881A (en) | Electric energy meter running error monitoring device in meter box | |
| CN108846155B (en) | Vector calculation method for electrical load center of building engineering and power transformation design method | |
| CN102916324B (en) | Device for manufacturing wire for secondary connection | |
| Lave et al. | Full-scale demonstration of distribution system parameter estimation to improve low-voltage circuit models | |
| CN104076198A (en) | Maximum demand synchronous metering device for primary meter and secondary meter of transformer substation and metering method | |
| CN104166767A (en) | Method for converting transformer zero-sequence test data into zero-sequence parameters used for computation | |
| CN209446662U (en) | Relay protection sample examination system based on synchronous data collection technology | |
| CN207281135U (en) | A kind of electrical energy measurement conversion equipment | |
| CN203551692U (en) | General hardware platform for intelligent substation digital physical hybrid simulation | |
| CN105354647A (en) | Reliability index prediction model generation method, reliability index prediction model generation device, prediction method and prediction device | |
| CN105185207A (en) | Intelligent transformer substation training system with delaminating and districting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE TO: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |