CN106786551A - Load group towards power supply and demand balance participates in the control method and its system of scheduling - Google Patents

Load group towards power supply and demand balance participates in the control method and its system of scheduling Download PDF

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Publication number
CN106786551A
CN106786551A CN201710031397.4A CN201710031397A CN106786551A CN 106786551 A CN106786551 A CN 106786551A CN 201710031397 A CN201710031397 A CN 201710031397A CN 106786551 A CN106786551 A CN 106786551A
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load
power
terminal
module
control
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CN106786551B (en
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赵术敏
许�鹏
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Shenzhen Shangwo Power Co Ltd
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Shenzhen Shangwo Power Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention discloses control method and its system that a kind of load group towards power supply and demand balance participates in scheduling, the method is comprised the following steps：There is short-term unbalanced supply-demand in power system, and control centre assigns power adjustment instruction and gives polymerization business's terminal；Polymerization business terminal obtains classification, quantity, state and the controlled power of current loads, and calculates maximum controllable capacity in real time；Polymerization business's terminal formulates load participation operation plan scheme according to power adjustment instruction, Overload Class, quantity, state and controlled power；Operation plan scheme is participated according to load, regulates and controls load, response system power difference；Calculated load participates in operation plan scheme cost, judges whether scheme has superiority in economy；Polymerization business's terminal participates in operation plan scheme and updates load condition, quantity, controlled power according to load, predicts maximum controllable capacity feed-back to control centre.Present invention reduces the toning in regulation process or less stress possibility, control accurate is realized.

Description

Load group towards power supply and demand balance participates in the control method and its system of scheduling
Technical field
Supplied towards electric power the present invention relates to load control and the applied technical field of power supply and demand balance, more particularly to one kind The load group that need to be balanced participates in the control method and its system of scheduling.
Background technology
The propulsion and the development of demand response technology built with intelligent grid, increasing intelligent appliance load can be with System response is participated in, be can yet be regarded as one kind by the coordination power system peak interval of time imbalance between supply and demand of intelligent appliance load responding Feasible program.But traditional response modes and centralization DLC modes based on electricity price, all by development limit to a certain extent System.
In polymerization business participates in double-deck scheduling model, Macro includes grid dispatching center and polymerization business, and microstructure layer is included Polymerization business and user, the distributed DLC demand responses mode of the business that is polymerized greatly has played small user's intelligent appliance load and has participated in The potentiality of response, improve user response enthusiasm.
In conventional regulation process, polymerization business lacks reasonability, to portion because indefinite to load character to regulation and control scheme User is divided to cause electricity consumption impairment of benefit.Therefore, how the optimal coordination of economy for meeting user power utilization demand and regulation and control is examined Consider, be a problem for needing to solve.
The content of the invention
For weak point present in above-mentioned technology, the present invention provides a kind of load group's ginseng towards power supply and demand balance With scheduling control method and its system, the present invention based on solve the unbalanced Optimum Economic of power supply and demand consider, regulating and controlling Cheng Zhong, had both considered user power utilization demand, it is also considered that the fairness of regulation and control, economy, and imbalance between power supply and demand, scheduling are alleviated to reach Economic optimum, meet the all-win effect such as user's request.
To achieve the above object, the present invention provides the controlling party that a kind of load group towards power supply and demand balance participates in scheduling Method, comprises the following steps：
There is short-term unbalanced supply-demand in step 1, power system, and power adjustment instruction is assigned to polymerization business's end by control centre End；
Step 2, polymerization business terminal obtains classification, quantity, state and the controlled power of current loads, and calculates maximum in real time Controllable capacity；
Step 3, polymerization business's terminal is formulated according to power adjustment instruction, Overload Class, quantity, state and controlled power Load participates in operation plan scheme；
Step 4, operation plan scheme is participated according to load, regulates and controls load, response system power difference；
Step 5, calculated load participates in operation plan scheme cost, judges whether scheme has superiority in economy；
Step 6, polymerization business's terminal participates in operation plan scheme and updates load condition, quantity, controlled power according to load, in advance Maximum controllable capacity feed-back is surveyed to control centre.
Wherein, in the step 1, there is instantaneous or short term power unbalanced supply-demand in power system, and control centre needs root According to the maximum controllable capacity predicted value P ' that polymerization business feeds back, one rational power adjustment instruction Δ P of polymerization business's terminal is assigned to； Generally, instruction Δ P is no more than maximum controllable capacity predicted value P '.
Wherein, the business's terminal that is polymerized in the step 2 needs Overload Class, the load of the load colony being obtained under barrel control Quantity n, load condition θ, controlled power P, and calculate maximum controllable capacity P in real timemax, calculate the tool of maximum controllable capacity in real time Body step is as follows：
1) load numbering i, initialization numbering i=1 are set；
If 2) load i is firm demand, nfixedCount is incremented；
If 3) load i is single state controllable burden, nsinCount is incremented, obtains state θsin；Wherein θsinFor 0 expression is closed, θsinFor 1 expression is opened；
If 4) i is multimode controllable burden, nFSMCount is incremented, obtains state θFSM, wherein θFSMIt is 0,1,2,3 grades；
5) i=i+1；
6) if load i is present, return 2), conversely, then carrying out 7)；
7) maximum controllable capacity is calculated：
Wherein, in the step 3, polymerization business's terminal-pair control centre power adjustment instruction Δ P, in real time maximum controllable capacity Pmax, the maximum controllable capacity P of list state load in real timemax,sinControllable capacity P maximum with real-time multimode loadmax,FSMIt is compared Judge, different schemes are taken for different situations, it is two-way optimal to seek scheduling accuracy and user power utilization demand；Formulate negative Lotus participates in operation plan scheme, specific as follows：
1) option A：If Δ P ＞ Pmax, then single state load and all responses of multimode load, dump power difference is by sending out Motor is exerted oneself supplement, conversely, then carrying out following judgement；
2) option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves are carried out to multimode electrical equipment Control, conversely, proceeding next step judgement；
3) scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load with multimode load adjust in proportion simultaneously by participation Control, conversely, the A that carries into execution a plan；
More than, option A is fixed because of goal of regulation and control and quantity, is not involved in control optimization；The control optimization of option b and scheme C Target is minimized for power difference matching error, i.e.,：
st.
Wherein, the PoIt is the actual regulation and control capacity of polymerization business's terminal, Pi,FSMIt is i-th multimode load power adjustment amount, Pi,sinIt is i-th single state load power, Δ P adjusts desired value for the power that control centre assigns；The control targe and constraint Condition ensure that the accuracy of power adjusting, prevent largely toning or less stress, while looking after user power utilization demand.
Wherein, the scheme that the step 4 is taken according to step 3, direct load control is carried out to load, with this response system Power difference, promote the short term power equilibrium of supply and demand, make power grid operation.
Wherein, in the step 5, polymerization business's terminal calculates scheduling cost according to the scheduling scheme implemented, and both economical Superiority, it is specific as follows：
Option A：If Δ P ＞ Pmax, then single state load and all responses of multimode load, dump power difference is by generating electricity Machine is exerted oneself supplement；Cost calculation is wA=μ+Pmax·p+(ΔP-Pmax)θ；
Option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves control is carried out to multimode electrical equipment System；Cost calculation is
Scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load and the participation regulation and control in proportion simultaneously of multimode load； Cost calculation isGenerator output cost β=Δ P θ；
Wherein, μ is scheduled basis cost, and p is controllable burden unit power adjustment cost, and θ unit power generator terminals are adjusted to This.
Wherein, the idiographic flow of the step 6 is：
Step 61, polymerization business terminal updates load condition, quantity and controlled power；
Step 62, according to demand history data, estimates load group's state and short term variations trend, in advance using kalman filtering Controllable capacity P ' maximum in a short time is surveyed, maximum controllable capacity predicted value P ' is fed back into control centre；
Step 63, if also needing to participate in next step operation plan, return to step 61, otherwise then terminates.
Wherein, the maximum controllable capacity P ' accuracys constraint, polymerization business terminal regulation and control income is made up of two parts：wLA= Pp- (| P '-P |) η, wherein P are the polymerization actual adjustment capacity of exerting oneself of business's terminal, and η is error punishment cost；P's ' acts on In the reference of target adjustment instruction is assigned to control centre, while constraining the accuracy of polymerization business's predictably terminal imagination.
Wherein, polymerization business's terminal value of feedback P ' is excessive, causes error punishment cost too high；P ' is too small, causes to receive tune Whole instruction is smaller, neither beneficial to polymerization business's terminal additional income.
To achieve the above object, the present invention also provides the control that a kind of load group towards power supply and demand balance participates in scheduling System, including control centre and polymerization business's terminal, the control centre is with the business's terminal that is polymerized by wireless communication connection；
The control centre includes assigning instruction module, receiver module and scheduler module, and the polymerization business terminal includes obtaining Instruction fetch module, calculating capacity module, module of developing programs, dispatching response module, calculating cost module and feedback module；
The instruction module of assigning is connected with acquisition instruction module, and acquisition module passes sequentially through calculating capacity module, system Determine scheme module, dispatching response module, calculate cost module and feedback module and be connected with receiver module, the receiver module and Scheduler module is connected；
There is short-term unbalanced supply-demand in power system, and the instruction module of assigning of control centre assigns power adjustment instruction to poly- Close business's terminal；The acquisition module of the business's terminal that is polymerized obtains classification, quantity, state and the controlled power of current loads, and by meter Calculate capacity module and calculate maximum controllable capacity in real time；Polymerization business's terminal is according to power adjustment instruction, Overload Class, quantity, state And controlled power, and load participation operation plan scheme is formulated by module of developing programs；The dispatching response mould of the business's terminal that is polymerized Root tuber participates in operation plan scheme, regulation and control load and response system power difference according to load；Calculate negative by calculating cost module Lotus participates in operation plan scheme cost, judges whether scheme has superiority in economy；Polymerization business's terminal participates in dispatching according to load Plans update load condition, quantity, controlled power, in predicting maximum controllable capacity and feeding back to scheduling by feedback module The heart；Control centre is received by receiver module and feeds back to its information, and adjusts power supply and demand balance by scheduler module.
The beneficial effects of the invention are as follows：Compared with prior art, the load towards power supply and demand balance that the present invention is provided Group participates in the control method and its system of scheduling, mainly includes control centre and polymerization business's terminal, control centre and polymerization business's end End can be host computer, polymerization business's terminal not only allows for the controllable burden of single state, it is also contemplated that multi-mode controllable burden, In the case of the power that can meet control centre adjusts index, lifting/lowering shelves operation is preferentially carried out to multimode controllable burden, it is ensured that The minimum need for electricity of user.Power adjustment instruction is judged, different schemes, and profit are taken according to adjustment amount difference Minimizing constraints with power shortage matching error carries out regulating and controlling quantitative planning, reduce toning in regulation process or Less stress possibility, realizes control accurate.Scheme superiority in economy is embodied in, and the scheme cost taken a certain regulation and control instruction will be small In by generator terminal regulation and control cost, the mode that generator terminal adjusts supply and demand difference that is completely dependent on is effectively improved completely, economy is improve.
Brief description of the drawings
Fig. 1 is the step of load group towards power supply and demand balance of the invention participates in the control method of scheduling flow chart；
Fig. 2 be in the present invention towards power supply and demand balance load group participate in scheduling control system working envelope figure；
Fig. 3 is the specific steps flow of the control method that the load group towards power supply and demand balance of the invention participates in scheduling Figure.
Main element symbol description is as follows：
1st, control centre 2, polymerization business's terminal
11st, instruction module 12, receiver module is assigned
13rd, scheduler module
21st, obtain instruction module 22, calculate capacity module
23rd, module of developing programs 24, dispatching response module
25th, cost module 26, feedback module is calculated.
Specific embodiment
In order to more clearly state the present invention, the present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is referred to, the load group towards power supply and demand balance of the invention participates in the control method of scheduling, including following Step：
There is short-term unbalanced supply-demand in step S1, power system, and power adjustment instruction is assigned to polymerization business's end by control centre End；
Step S2, polymerization business terminal obtains classification, quantity, state and the controlled power of current loads, and calculating is real-time most Big controllable capacity；
Step S3, polymerization business's terminal is formulated according to power adjustment instruction, Overload Class, quantity, state and controlled power Load participates in operation plan scheme；
Step S4, operation plan scheme is participated according to load, regulates and controls load, response system power difference；
Step S5, calculated load participates in operation plan scheme cost, judges whether scheme has superiority in economy；
Step S6, polymerization business's terminal participates in operation plan scheme and updates load condition, quantity, controlled power according to load, Predict maximum controllable capacity feed-back to control centre.
In the present embodiment, in step S1, there is instantaneous or short term power unbalanced supply-demand in power system, and control centre needs The maximum controllable capacity predicted value P ' to be fed back according to polymerization business, is assigned to the business's one rational power adjustment instruction of terminal that is polymerized ΔP；Generally, instruction Δ P is no more than maximum controllable capacity predicted value P '.
In the present embodiment, the business's terminal that is polymerized in step S2 needs the load class of the load colony being obtained under barrel control Not, load quantity n, load condition θ, controlled power P, and calculate maximum controllable capacity P in real timemax, calculate maximum controllable appearance in real time That measures comprises the following steps that：
1) load numbering i, initialization numbering i=1 are set；
If 2) load i is firm demand, nfixedCount is incremented；
If 3) load i is single state controllable burden, nsinCount is incremented, obtains state θsin；Wherein θsinFor 0 expression is closed, θsinFor 1 expression is opened；
If 4) i is multimode controllable burden, nFSMCount is incremented, obtains state θFSM, wherein θFSMIt is 0,1,2,3 grades；
5) i=i+1；
6) if load i is present, return 2), conversely, then carrying out 7)；
7) maximum controllable capacity is calculated：
In the present embodiment, in step S3, polymerization business's terminal-pair control centre power adjustment instruction Δ P, real-time maximum can Control capacity Pmax, the maximum controllable capacity P of list state load in real timemax,sinControllable capacity P maximum with real-time multimode loadmax,FSMEnter Row multilevel iudge, different schemes are taken for different situations, two-way optimal to seek scheduling accuracy and user power utilization demand； Formulate load and participate in operation plan scheme, it is specific as follows：
1) option A：If Δ P ＞ Pmax, then single state load and all responses of multimode load, dump power difference is by sending out Motor is exerted oneself supplement, conversely, then carrying out following judgement；
2) option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves are carried out to multimode electrical equipment Control, conversely, proceeding next step judgement；
3) scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load with multimode load adjust in proportion simultaneously by participation Control, conversely, the A that carries into execution a plan；
More than, option A is fixed because of goal of regulation and control and quantity, is not involved in control optimization；The control optimization of option b and scheme C Target is minimized for power difference matching error, i.e.,：
st.
Wherein, PoIt is the actual regulation and control capacity of polymerization business's terminal, Pi,FSMIt is i-th multimode load power adjustment amount, Pi,sin It is i-th single state load power, Δ P adjusts desired value for the power that control centre assigns；The control targe and constraints The accuracy of power adjusting is ensure that, largely toning or less stress is prevented, while looking after user power utilization demand.
In the present embodiment, the scheme that step S4 takes according to step S3, direct load control is carried out to load, is rung with this The power difference of system is answered, promotes the short term power equilibrium of supply and demand, make power grid operation.
In the present embodiment, in step S5, polymerization business's terminal calculates scheduling cost according to the scheduling scheme implemented, and compares Superiority in economy, it is specific as follows：
Option A：If Δ P ＞ Pmax, then single state load and all responses of multimode load, dump power difference is by generating electricity Machine is exerted oneself supplement；Cost calculation is wA=μ+Pmax·p+(ΔP-Pmax)θ；
Option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves control is carried out to multimode electrical equipment System；Cost calculation is
Scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load and the participation regulation and control in proportion simultaneously of multimode load； Cost calculation isGenerator output cost β=Δ P θ；μ is scheduled basis cost, P is controllable burden unit power adjustment cost, θ unit power generator terminal adjustment costs.
In the present embodiment, the idiographic flow of step S6 is：
The first step, polymerization business terminal updates load condition, quantity and controlled power；
Second step, according to demand history data, estimates load group's state and short term variations trend, in advance using kalman filtering Controllable capacity P ' maximum in a short time is surveyed, maximum controllable capacity predicted value P ' is fed back into control centre；
3rd step, if also needing to participate in next step operation plan, return to step S61, otherwise then terminates.
Wherein, maximum controllable capacity P ' accuracys constraint, polymerization business terminal regulation and control income is made up of two parts：wLA=P P- (| P '-P |) η, wherein P are the polymerization actual adjustment capacity of exerting oneself of business's terminal, and η is error punishment cost；The effect of P ' is The reference of target adjustment instruction is assigned to control centre, while constraining the accuracy of polymerization business's predictably terminal imagination.Polymerization business's terminal Value of feedback P ' is excessive, and error punishment cost may be caused too high；P ' is too small, and it is smaller to cause to receive adjust instruction, both All it is unfavorable for the business's terminal additional income that is polymerized.
To achieve the above object, the present invention also provides the control that a kind of load group towards power supply and demand balance participates in scheduling System, including control centre 1 and polymerization business terminal 2, control centre 1 is with the business's terminal 2 that is polymerized by wireless communication connection；
The control centre 1 includes assigning instruction module 11, receiver module 12 and scheduler module 13, polymerization business's terminal 2 include obtaining instruction module 21, calculate capacity module 22, module of developing programs 23, dispatching response module 24, calculate cost module 25 and feedback module 26；
The instruction module of assigning is connected with acquisition instruction module, and acquisition module passes sequentially through calculating capacity module, system Determine scheme module, dispatching response module, calculate cost module and feedback module and be connected with receiver module, the receiver module and Scheduler module is connected；
There is short-term unbalanced supply-demand in power system, and the instruction module of assigning of control centre assigns power adjustment instruction to poly- Close business's terminal；The acquisition module of the business's terminal that is polymerized obtains classification, quantity, state and the controlled power of current loads, and by meter Calculate capacity module and calculate maximum controllable capacity in real time；Polymerization business's terminal is according to power adjustment instruction, Overload Class, quantity, state And controlled power, and load participation operation plan scheme is formulated by module of developing programs；The dispatching response mould of the business's terminal that is polymerized Root tuber participates in operation plan scheme, regulation and control load and response system power difference according to load；Calculate negative by calculating cost module Lotus participates in operation plan scheme cost, judges whether scheme has superiority in economy；Polymerization business's terminal participates in dispatching according to load Plans update load condition, quantity, controlled power, in predicting maximum controllable capacity and feeding back to scheduling by feedback module The heart；Control centre is received by receiver module and feeds back to its information, and adjusts power supply and demand balance by scheduler module.
Compared to the situation of prior art, the load group towards power supply and demand balance that the present invention is provided participates in the control of scheduling Method processed and its system, mainly include control centre and polymerization business's terminal, and control centre and polymerization business terminal can be host computer, Polymerization business's terminal not only allows for the controllable burden of single state, it is also contemplated that multi-mode controllable burden, in it can meet and dispatch In the case of the power adjustment index of the heart, lifting/lowering shelves operation is preferentially carried out to multimode controllable burden, it is ensured that the minimum use of user Electric demand.Power adjustment instruction is judged, different schemes are taken according to adjustment amount difference, and using power shortage matching Error minimizes constraints and carries out regulating and controlling quantitative planning, reduces the toning in regulation process or less stress possibility, real Existing control accurate.Scheme superiority in economy is embodied in, and the scheme cost taken a certain regulation and control instruction will be less than completely by generator terminal Regulation and control cost, effectively improves the mode that generator terminal adjusts supply and demand difference that is completely dependent on, and improves economy.
The present invention participates in the harmonious economy control method of scheduling based on the load group towards power supply and demand balance for providing, its Concrete application operation flow be：There is short-term unbalanced supply-demand, emergent power difference in power system；Assign power in control centre Adjust instruction gives polymerization business's terminal；Polymerization business terminal obtains classification, quantity, state and the controlled power of current loads, and calculates Real-time maximum controllable capacity；Whether decision instruction exceedes maximum controllable capacity, and if the A that carried into execution a plan more than if, option A is single state Load is all adjusted with multimode load refering to control, and generator output；If being not above, whether decision instruction exceedes most The big multimode controllable capacity of load；If exceeding, whether decision instruction exceedes maximum list state and the controllable capacity sum of multimode； If not above, judge whether to meet control restriction condition after carrying out option b multimode load lifting/lowering shelves, if meeting, carry out Option A；If it is not satisfied, then adjusting control operation；If instruction exceedes maximum list state and the controllable capacity sum of multimode, carry out Option A；If instruction carries out scheme C not less than maximum list state and the controllable capacity sum of multimode, single state is born with multimode Lotus judges whether to meet control restriction condition after regulating and controlling in proportion, if meeting, carries out option A；If it is not satisfied, then adjustment control Operation；Carry into execution a plan after A, carry out the regulation and control cost in scheme；By the regulation and control cost in scheme and generator output adjustment cost It is compared；Determine whether to participate in after updating load condition, quantity, controllable time, the maximum controlled power of prediction after the completion of comparing Next operation plan, if otherwise terminating；If so, then returning to classification, quantity, state that polymerization business terminal obtains current loads And controlled power, and calculate maximum controllable capacity the step in real time.
Disclosed above is only several specific embodiments of the invention, but the present invention is not limited to this, any ability What the technical staff in domain can think change should all fall into protection scope of the present invention.

Claims (10)

1. a kind of load group towards power supply and demand balance participates in the control method of scheduling, it is characterised in that comprise the following steps：
There is short-term unbalanced supply-demand in step 1, power system, and control centre assigns power adjustment instruction and gives polymerization business's terminal；
Step 2, polymerization business terminal obtains classification, quantity, state and the controlled power of current loads, and calculates maximum in real time controllable Capacity；
Step 3, polymerization business's terminal formulates load according to power adjustment instruction, Overload Class, quantity, state and controlled power Participate in operation plan scheme；
Step 4, operation plan scheme is participated according to load, regulates and controls load, response system power difference；
Step 5, calculated load participates in operation plan scheme cost, judges whether scheme has superiority in economy；
Step 6, polymerization business's terminal participates in operation plan scheme and updates load condition, quantity, controlled power according to load, and prediction is most Big controllable capacity feed-back is to control centre.
2. the load group towards power supply and demand balance according to claim 1 participates in the control method of scheduling, and its feature exists In in the step 1, instantaneous or short term power unbalanced supply-demand occurs in power system, and control centre needs anti-according to polymerization business The maximum controllable capacity predicted value P ' of feedback, is assigned to one rational power adjustment instruction Δ P of polymerization business's terminal；Ordinary circumstance Under, instruction Δ P is no more than maximum controllable capacity predicted value P '.
3. the load group towards power supply and demand balance according to claim 1 participates in the control method of scheduling, and its feature exists In the business's terminal that is polymerized in the step 2 needs Overload Class, load quantity n, the load of the load colony being obtained under barrel control State θ, controlled power P, and calculate maximum controllable capacity P in real timemax, calculate comprising the following steps that for real-time maximum controllable capacity：
1) load numbering i, initialization numbering i=1 are set；
If 2) load i is firm demand, nfixedCount is incremented；
If 3) load i is single state controllable burden, nsinCount is incremented, obtains state θsin；Wherein θsinFor 0 expression is closed, θsinFor 1 represents unlatching；
If 4) i is multimode controllable burden, nFSMCount is incremented, obtains state θFSM, wherein θFSMIt is 0,1,2,3 grades；
5) i=i+1；
6) if load i is present, return 2), conversely, then carrying out 7)；
7) maximum controllable capacity is calculated：
4. the load group towards power supply and demand balance according to claim 1 participates in the control method of scheduling, and its feature exists In, in the step 3, polymerization business's terminal-pair control centre power adjustment instruction Δ P, in real time maximum controllable capacity Pmax, it is single in real time The maximum controllable capacity P of state loadmax,sinControllable capacity P maximum with real-time multimode loadmax,FSMJudgement is compared, for Different situations take different schemes, two-way optimal to seek scheduling accuracy and user power utilization demand；Load is formulated to participate in adjusting Degree plans, it is specific as follows：
1) option A：If Δ P ＞ Pmax, then single state load and all responses of multimode load, dump power difference is by generator Exert oneself supplement, conversely, then carrying out following judgement；
2) option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves control is carried out to multimode electrical equipment, Conversely, proceeding next step judgement；
3) scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load and the participation regulation and control in proportion simultaneously of multimode load, instead It, carry into execution a plan A；
More than, option A is fixed because of goal of regulation and control and quantity, is not involved in control optimization；The control optimization aim of option b and scheme C For power difference matching error is minimized, i.e.,：
st.
0 < ( &Sigma; 1 s P i , F S M + &Sigma; 1 t P i , s i n ) < P m a x , 0 < s < n F S M , 0 < t < n s i n ;
Wherein, described P ° is the actual regulation and control capacity of polymerization business's terminal, PI, FSMIt is i-th multimode load power adjustment amount, Pi,sin It is i-th single state load power, Δ P adjusts desired value for the power that control centre assigns；The control targe and constraints The accuracy of power adjusting is ensure that, largely toning or less stress is prevented, while looking after user power utilization demand.
5. the load group towards power supply and demand balance according to claim 4 participates in the control method of scheduling, and its feature exists In the scheme that the step 4 is taken according to step 3 carries out direct load control to load, with the difference power of this response system Volume, promotes the short term power equilibrium of supply and demand, makes power grid operation.
6. the load group towards power supply and demand balance according to claim 1 participates in the control method of scheduling, and its feature exists In in the step 5, polymerization business's terminal calculates scheduling cost, and both economical superiority according to the scheduling scheme implemented, specifically It is as follows：
Option A：If Δ P ＞ Pmax, then single state load is whole with multimode load is responded, and dump power difference is gone out by generator Power is supplemented；Cost calculation is wA=μ+Pmax·p+(ΔP-Pmax)θ；
Option b：If Δ P ＜ Pmax,FSM, then single state load be not involved in regulation and control, lifting/lowering shelves control is carried out to multimode electrical equipment；Into Originally it is calculated as
Scheme C：If Δ P ＜ Pmax,FSM+Pmax,sin, then single state load and the participation regulation and control in proportion simultaneously of multimode load；Cost It is calculated asGenerator output cost β=Δ P θ；
Wherein, μ is scheduled basis cost, and p is controllable burden unit power adjustment cost, θ unit power generator terminal adjustment costs.
7. the load group towards power supply and demand balance according to claim 1 participates in the control method of scheduling, and its feature exists In the idiographic flow of the step 6 is：
Step 61, polymerization business terminal updates load condition, quantity and controlled power；
Step 62, according to demand history data, load group's state and short term variations trend is estimated using kalman filtering, is predicted short Maximum controllable capacity P ' in phase, control centre is fed back to by maximum controllable capacity predicted value P '；
Step 63, if also needing to participate in next step operation plan, return to step 61, otherwise then terminates.
8. the load group towards power supply and demand balance according to claim 7 participates in the control method of scheduling, and its feature exists In the maximum controllable capacity P ' accuracys constraint, polymerization business terminal regulation and control income is made up of two parts：wLA=Pp- (| P '- P |) η, wherein P is the polymerization actual adjustment capacity of exerting oneself of business's terminal, and η is error punishment cost；The effect of P ' is in scheduling The heart assigns the reference of target adjustment instruction, while constraining the accuracy of polymerization business's predictably terminal imagination.
9. the load group towards power supply and demand balance according to claim 8 participates in the control method of scheduling, and its feature exists In P ' is excessive for polymerization business's terminal value of feedback, causes error punishment cost too high；P ' is too small, and it is smaller to cause to receive adjust instruction, Neither beneficial to polymerization business's terminal additional income.
10. a kind of load group towards power supply and demand balance participates in the control system of scheduling, it is characterised in that including control centre With polymerization business's terminal, the control centre is with the business's terminal that is polymerized by wireless communication connection；
The control centre includes assigning instruction module, receiver module and scheduler module, and the polymerization business terminal refers to including acquisition Make module, calculate capacity module, module of developing programs, dispatching response module, calculating cost module and feedback module；
The instruction module of assigning is connected with acquisition instruction module, and acquisition module passes sequentially through calculating capacity module, formulation side Case module, dispatching response module, calculate cost module and feedback module and be connected with receiver module, the receiver module with dispatch Module is connected；
There is short-term unbalanced supply-demand in power system, and the instruction module of assigning of control centre assigns power adjustment instruction to polymerization business Terminal；The acquisition module of the business's terminal that is polymerized obtains classification, quantity, state and the controlled power of current loads, and is held by calculating Amount module calculates maximum controllable capacity in real time；Polymerization business's terminal is according to power adjustment instruction, Overload Class, quantity, state and can Control power, and load participation operation plan scheme is formulated by module of developing programs；The dispatching response module root of the business's terminal that is polymerized Operation plan scheme, regulation and control load and response system power difference are participated according to load；Joined by calculating cost module calculated load With operation plan scheme cost, judge whether scheme has superiority in economy；Polymerization business's terminal participates in operation plan according to load Scheme updates load condition, quantity, controlled power, predicts maximum controllable capacity and feeds back to control centre by feedback module； Control centre is received by receiver module and feeds back to its information, and adjusts power supply and demand balance by scheduler module.
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