CN1595757A - Method for optimizing power load of power consuming enterprise - Google Patents
Method for optimizing power load of power consuming enterprise Download PDFInfo
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- CN1595757A CN1595757A CNA2004100450122A CN200410045012A CN1595757A CN 1595757 A CN1595757 A CN 1595757A CN A2004100450122 A CNA2004100450122 A CN A2004100450122A CN 200410045012 A CN200410045012 A CN 200410045012A CN 1595757 A CN1595757 A CN 1595757A
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- host computer
- maximum demand
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- bus
- monitoring host
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a method for optimizing power load of electric utility enterprise, on the basis of existing automatic controller of power supply network, adding a maximum need- optimizing monitoring host computer to compose a set of complete control system and electric load maximum need optimizing modulus. If the load of a power-supply line is about to reach the limit value of the maximum need, a maximum need optimization monitoring host computer sends out bus connecting switch switching-on instruction by optimization operation to a circuit detection and control device to switch on the control switch, which makes incoming transformers operated in parallel, thus realizing the purposes of load uniformity and limitation to the maximum need; if the load is about to reach the limit value of the maximum need, the host computer breaks feeder circuit undertaken by one transformer and makes a corresponding feeder circuit to the other transformer completely undertake the feeder circuit, realizing the purpose of load 'transfer' and limitation to the maximum need. It also includes existing 'adjusting' and 'pressing' method, having a spreading value.
Description
Technical field
The present invention relates to a kind of method that is used to optimize electricity consumption enterprise electric load, belong to the H02J3/06 class.
Background technology
At present power department is to carry out two system electricity prices to the way that collects of the electricity consumption electricity charge of large-scale electricity consumption enterprise: electricity price and basic electricity price.Basic electricity price is electric power authorities for realizing power balance, reduce system reserve capacity, improve the mains supply ability, reduce the electric power investment and guarantee system safety, stable and economical operation, impels each power consumer to improve constantly load factor in electricity consumption according to plan and a kind of restriction means of adopting; Electricity price is to charge by the actual power consumption of user, and it is the immutable expense of being determined by the user power utilization amount.
Basic electricity price is that power department charges by the maximum demand of measuring subscriber's drop mostly, it changes with the change of peak load, peak load is big more, the basic charge as per installed capacity of collecting is also many more, and maximum demand is with the average maximum power in electric unit (as industrial enterprise) certain time period during electricity consumption, and regulation is calculated with the average power in the 15-min period.For example certain month certain 1 maximum average power in 15 minutes has determined the height of this month basic charge as per installed capacity, and this average power is high more, and the basic charge as per installed capacity of paying is many more.
For some large-scale energy consumption enterprises (as iron and steel metallurgy enterprise), reliability requirement to power supply is very high, be out of order as power supply and have the phenomenon that molten iron or molten steel " are freezed ", can bring immeasurable loss to enterprise, so generally all have two times or the power supply of above power supply special line, the transformer platform number of corresponding configuration all has more than two, still can guarantee when any supply line or transformer break down one-level or the power supply of two stage loads to satisfy.Power supply department is collected general the employing by the maximum demand sum of every time supply line of basic charge as per installed capacity to this type of electricity consumption enterprise and is calculated.Because of benefiting from the influence of indoor distribution operational mode, the maximum demand of single time supply line can not produce at one time with user's actual maximum demand, and the requirement sum of all supply lines can be greater than user's actual maximum demand of this month in one month.For electricity consumption enterprise, the expenditure of basic charge as per installed capacity is a heavier burden, and it has accounted for enterprise's electricity charge total amount about 1/10, therefore can reduce unnecessary cost by reducing maximum demand to enterprise with the expenditure that reduces enterprise's basic charge as per installed capacity.
Be to save the expenditure of basic charge as per installed capacity, the operation measure of the supply network automatic control device of Cai Yonging is in the market: 1. force down power consumption equipment power or to the equipment of adjustable power by regulating its power gear peak of power consumption (i.e. " accent ") that staggers; 2. reduce power consumption equipment, produce or temporarily stop using (" pressure ") reduction electricity consumption enterprise maximum demand when the peak of power consumption producing the very little equipment of influence to not influencing.Adopt this " accent " or " pressure " mode consequently to reduce the production capacity of electricity consumption enterprise or destroyed the rhythm of production of enterprise.To sacrifice economic loss that the enterprise product quantum of output causes to enterprise, be a kind of means that lose more than gain sometimes also greater than the spending of saving basic charge as per installed capacity.
Summary of the invention
The object of the present invention is to provide a kind ofly, particularly,,, save the basic charge as per installed capacity spending to reduce electricity consumption business electrical maximum demand by optimal control to each current supply circuit electric load to the electricity consumption enterprise of multiloop power supply to electricity consumption enterprise.
For achieving the above object, the technical solution used in the present invention is: rely at present up-to-date computer technology and network technology, data communication technology, automatic control technology, also by present existing supply network automatic control device, provide complete control method of a cover and electric load maximum demand to optimize digital-to-analogue, reduce the loop maximum demand with " all ", " commentaries on classics " means.The present invention also adopts traditional in the market " accent "; " pressure " method; utilize the circuit measure and control device in the system to gather the relevant parameter in each loop of electricity consumption enterprise in real time; as voltage; electric current; frequency; the pulse electric degree; the position of the switch; protection analog quantity such as action message and quantity of state etc.; and be sent to maximum demand in real time and optimize monitoring host computer; maximum demand is optimized computing after optimizing monitoring host computer acquisition cuicuit relevant parameter; determine the control command that will send and send the address; send to each circuit measure and control device by computer network; the circuit measure and control device sends the instruction of closing a floodgate or opening a sluice gate to its contactor of controlling again, realizes the automatic control of electrical network necessity.
Adopt the method for the optimization electricity consumption enterprise electric load that as above technical scheme provides that following advantage is compared with prior art arranged:
1. fundamentally having solved present prior art and when using be to sacrifice output is the critical defect of cost, makes electric power system can guarantee needs to the production electricity consumption all the time when operation, can realize effective control of electricity consumption maximum demand again;
2. the present invention has concentrated highly intelligent advanced technology, the automaticity height, the equipment input amount is few, only need additional conventional desktop computer in the automation control system of electricity consumption enterprise supply network is loaded onto electric load maximum demand optimal control system and just can be realized its function, small investment, instant effect;
3. both tool " all ", " commentaries on classics " function, also traditional in the market " accent ", " pressure " function of tool of the present invention.
Description of drawings
Fig. 1 is the system network architecture schematic diagram of optimization electricity consumption of the present invention enterprise electric load method, also is specification digest accompanying drawing of the present invention.
Fig. 2 is an electricity consumption enterprise supply network main electrical scheme schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the specific embodiment of the present invention is described in further detail.
As shown in Figure 1,1 is maximum demand optimization monitoring host computer, and 2 is the supervisory control of substation main frame, and 3 is gateway, and 4 is the circuit measure and control device, and 5 is data/address bus, and 6 is network connectivity.Wherein the supply network automatic control equipment of being made up of supervisory control of substation main frame 2, gateway 3, circuit measure and control device 4 and data/address bus 5, network connectivity 6 is a prior art, maximum demand is optimized monitoring host computer 1 and is the equipment that will increase required for the present invention, maximum demand is optimized monitoring host computer 1 and is connected with each circuit measure and control device 4 through network connectivity 6, gateway 3 and data/address bus 5, and maximum demand is optimized monitoring host computer 1 and linked to each other with supervisory control of substation main frame 2 through network connectivity 6 again.It is implementer of the present invention that maximum demand is optimized monitoring host computer 1, and the electric load maximum demand is optimized in digital-to-analogue is stored in, and maximum demand is optimized monitoring host computer 1 and adopted popular in the market main flow computer, as association's computer etc.Be optimized computing after maximum demand optimization monitoring host computer 1 reads the line related parameter, determine the control command that will send and send the address; Send to the circuit measure and control device by computer network, the circuit measure and control device sends the instruction of closing a floodgate or opening a sluice gate to the feeding circuit switch that is subjected to that it is controlled again, to realize the control of maximum demand.
Be the power supply main electrical scheme schematic diagram of certain electricity consumption enterprise as shown in Figure 2, adopt two circuit sectionalized single busbar connection modes.Optimal control method of the present invention mainly occurs in three grades of loops, all will carry out line parameter circuit value for one-level loop, secondary circuit and three grades of loops and detect, and all will adopt when these line parameter circuit values are optimized computing in system.The bus bus connection switch in loops at different levels all is to disconnect under normal operating condition.Between I section bus in three grades of loops and the II section bus bus bus connection switch K is arranged
3, K switch in the ordinary course of things
3For disconnecting.In three grades of loops, I section bus both linked to each other with power consumption equipment 1 and power consumption equipment n, again through 1 time load 1 control switch K
1Link to each other for 1 time with load 1 feeder line; And II section bus both with power consumption equipment
N+1, power consumption equipment m links to each other, again through 2 times load 1 control switch K
2Link to each other for 2 times with load 1 feeder line.
Guaranteeing that two advance electric line and can carry out safely under the prerequisite of cyclization operation, when being about to reach the maximum demand limit value as the load that advances electric line one when certain of electricity consumption enterprise, send circuit operational factors such as load signal to maximum demand through network connectivity 6 by supervisory control of substation main frame 2 and optimize monitoring host computer 1, maximum demand is optimized monitoring host computer 1 and is directly obtained relevant information from circuit measure and control device 4 by network connectivity 6 and gateway 3, will optimize monitoring host computer 1 to bus bus connection switch K by maximum demand after the information via optimization computing that obtain
3The reclosing command that sends to bus bus connection switch K
3The circuit measure and control device 4 that links to each other, this circuit measure and control device 4 are received after maximum demand is optimized the instruction of monitoring host computer 1 and are controlled bus bus connection switch K
3Close a floodgate, make 1 of electric line one into
#Transformer with advance 2 of electric line two
#Transformer becomes paired running.This method of respectively advancing electric line load with equilibrium is called " all "; If when advancing the load of electric line two and being about to reach the maximum demand limit amount, optimize monitoring host computer 1 by maximum demand and send bus connection K switch
3Reclosing command is to circuit measure and control device 4, and circuit measure and control device 4 is controlled bus bus connection switch K
3Close a floodgate, make 2
#Transformer and 1
#Transformer becomes paired running.
The current supply circuit part load transfer that load is too high is called " commentaries on classics " to the control method of another current supply circuit.
As shown in Figure 2, two gratings (change) electricity institute respectively by the one-level transformer I section bus and II section bus respectively send one road power supply to load (being power consumption equipment), standby each other, every road power supply all can be born whole loads of the usefulness electric unit of sending separately.The bus bus connection switch K between I section bus and the II section bus under normal circumstances
3For disconnecting.
Guaranteeing that two advance electric line and can carry out safely under the prerequisite of cyclization operation, as when the load in the supply line one is about to reach the maximum demand limit value, after maximum demand optimization monitoring host computer 1 is received this signal, be optimized computing according to the current operational mode of electrical network, line parameter circuit value, and the bus bus connection switch K between I section bus in three grades of loops and the II section bus
3Send switching signal, with this K switch
3The circuit measure and control device 4 that links to each other is accepted to control bus bus connection switch K after maximum demand is optimized the control command of monitoring host computer 1
3Close a floodgate, treat bus bus connection switch K
3Switching signal turn back to maximum demand and optimize monitoring host computer 1 after, optimize monitoring host computer 1 to II section bus load 1 feeder line 2 circuit switching K by maximum demand again
2Send switching signal, with K switch
2Control switch K behind the circuit measure and control device 4 reception switching signals that link to each other
2Close a floodgate, switching signal turns back to maximum demand and optimizes monitoring host computer 1, and maximum demand is optimized monitoring host computer 1 to I section bus load 1 feeder line 1 circuit switching K thereafter
1Send cut-off signal, with K switch
1The circuit measure and control device 4 that links to each other is accepted control switch K behind the cut-off signal
1Separating brake, disconnection power consumption equipment 1～n is connected with current supply circuit one, so just finishes the transfer of load, has realized the purpose of " commentaries on classics ", has limited maximum demand.
Except that as above embodiment, when 2
#When the load of transformer was about to reach the maximum demand limit value, maximum demand was optimized monitoring host computer 1 and also is optimized computing according to power system operating mode, line parameter circuit value, selects 2 with self-optimization method
#The feeding circuit that transformer is undertaken disconnects, and 2
#The load of the power consumption equipment n+1 to m that transformer is born is by 1
#The corresponding feeding circuit of transformer undertakes the whole thing, and reaches the purpose of load transfer restriction maximum demand equally.
More than be to be the explanation that example is done,, also can be implemented in the operation of " all " and " commentaries on classics " between each loop equally, reach the purpose that reduces maximum demand for the electricity consumption enterprise more than two loops with two loop electricity consumption enterprises.
Claims (1)
1, a kind of method of optimizing electricity consumption enterprise electric load, it is characterized in that: maximum demand is optimized monitoring host computer (1) and is linked to each other with supervisory control of substation main frame (2) through network connectivity (6), and maximum demand is optimized monitoring host computer (1) and linked to each other with circuit measure and control device (4) through network connection (6), gateway (3), data/address bus (5);
When the load that advances electric line () is about to reach the maximum demand limit value, send circuit operational factors such as load signal to maximum demand through network connectivity (6) by supervisory control of substation main frame (2) and optimize monitoring host computer (1), maximum demand is optimized monitoring host computer (1) and is directly obtained relevant information from circuit measure and control device (4) by network connectivity (6) and gateway (3), after acquired information and process were optimized computing, maximum demand was optimized monitoring host computer (1) to bus bus connection switch (K
3) reclosing command that sends to bus bus connection switch (K
3) continuous circuit measure and control device (4), circuit measure and control device (4) is received after maximum demand is optimized the instruction of monitoring host computer (1) and is controlled female connection bus-tie circuit breaker (K
3) close a floodgate, make 1 of electric line () into
#Transformer with advance 2 of electric line (two)
#Transformer becomes paired running;
When the load in supply line () is about to reach the maximum demand limit value, after receiving signal, maximum demand optimization monitoring host computer (1) is optimized computing according to power system operating mode, line parameter circuit value, and the bus bus connection switch (K between I section bus in three grades of loops and the II section bus
3) send switching signal, with switch (K
3) the circuit measure and control device (4) that links to each other accepts maximum demand and optimize control bus bus connection switch (K after the control command of monitoring host computer (1)
3) close a floodgate bus bus connection switch (K
3) switching signal turn back to maximum demand and optimize monitoring host computer (1), optimize monitoring host computer (1) to II section bus load 1 feeder line 2 circuit switching (K by maximum demand again
2) send switching signal, with switch (K
2) continuous circuit measure and control device (4) reception switching signal control switch (K
2) close a floodgate, switching signal turns back to maximum demand and optimizes monitoring host computer (1), and maximum demand is optimized monitoring host computer (1) to I section bus load 1 feeder line 1 circuit switching (K
1) send cut-off signal, with switch (K
1) the circuit measure and control device (4) that links to each other accepts control switch (K behind the cut-off signal
1) separating brake, disconnection power consumption equipment 1～n is connected with current supply circuit (one's).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100450122A CN1595757A (en) | 2004-07-06 | 2004-07-06 | Method for optimizing power load of power consuming enterprise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100450122A CN1595757A (en) | 2004-07-06 | 2004-07-06 | Method for optimizing power load of power consuming enterprise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1595757A true CN1595757A (en) | 2005-03-16 |
Family
ID=34665577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100450122A Pending CN1595757A (en) | 2004-07-06 | 2004-07-06 | Method for optimizing power load of power consuming enterprise |
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| CN (1) | CN1595757A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690019A (en) * | 2007-07-06 | 2010-03-31 | 默勒有限公司 | System and method for controlling bus-networked devices via an open field bus |
| CN102055215A (en) * | 2010-10-15 | 2011-05-11 | 国家电网公司 | Control method and operation monitoring system of charging and exchanging station of electric vehicle |
| CN102263418A (en) * | 2010-05-27 | 2011-11-30 | 元智大学 | Apparatus capacity allocation method of hybrid energy power generation system |
| CN101335661B (en) * | 2007-06-29 | 2012-02-01 | 上海磁浮交通工程技术研究中心 | Integrated automation communication system of transformation station |
| CN101788792B (en) * | 2009-01-23 | 2012-09-19 | 财团法人工业技术研究院 | Computation method of limited value of demand and control method and system of demand |
| RU2613350C2 (en) * | 2012-08-09 | 2017-03-16 | Дойче Телеком Аг | Method and device for telecommunication network electric power consumption space-time control depending on power supply system conditions |
| CN112713586A (en) * | 2020-12-08 | 2021-04-27 | 广东卡特能源科技有限公司 | Low-voltage intelligent power distribution self-healing and power supply switching control system |
-
2004
- 2004-07-06 CN CNA2004100450122A patent/CN1595757A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335661B (en) * | 2007-06-29 | 2012-02-01 | 上海磁浮交通工程技术研究中心 | Integrated automation communication system of transformation station |
| CN101690019A (en) * | 2007-07-06 | 2010-03-31 | 默勒有限公司 | System and method for controlling bus-networked devices via an open field bus |
| CN101690019B (en) * | 2007-07-06 | 2014-01-08 | 默勒有限公司 | System and method for controlling bus-networked devices via an open field bus |
| CN101788792B (en) * | 2009-01-23 | 2012-09-19 | 财团法人工业技术研究院 | Computation method of limited value of demand and control method and system of demand |
| CN102263418A (en) * | 2010-05-27 | 2011-11-30 | 元智大学 | Apparatus capacity allocation method of hybrid energy power generation system |
| CN102263418B (en) * | 2010-05-27 | 2013-08-07 | 元智大学 | Apparatus capacity allocation method of hybrid energy power generation system |
| CN102055215A (en) * | 2010-10-15 | 2011-05-11 | 国家电网公司 | Control method and operation monitoring system of charging and exchanging station of electric vehicle |
| RU2613350C2 (en) * | 2012-08-09 | 2017-03-16 | Дойче Телеком Аг | Method and device for telecommunication network electric power consumption space-time control depending on power supply system conditions |
| CN112713586A (en) * | 2020-12-08 | 2021-04-27 | 广东卡特能源科技有限公司 | Low-voltage intelligent power distribution self-healing and power supply switching control system |
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