CN107918919A - A kind of industrial park integrated energy system Optimized Operation containing control strategy and evaluation system and method - Google Patents
A kind of industrial park integrated energy system Optimized Operation containing control strategy and evaluation system and method Download PDFInfo
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Abstract
The invention discloses a kind of industrial park integrated energy system Optimized Operation containing control strategy and evaluation system and method, scheme is：Scheduling phase a few days ago, on hot and cold, electric load curve fundamentals of forecasting, integrated energy system is according to the performance and capacity parameter of each unit, and using integrated energy system performance driving economy as optimization aim, decision-making goes out optimal unit output a few days ago；In the Real-Time Scheduling stage, regular hour in advance, with reference to factor situation of change at that time, appropriate amendment is carried out for obtained load prediction results and the Optimized Operation curve calculated, real-time dispatch command is generated at the current time of system operation, realizes the optimization for system；In the Real-Time Scheduling stage, exist from various control strategies such as cutting-in control, direct load control, user temperature controls；On the basis of optimal scheduling curve is drawn, scheduling system further completes the evaluation to energy efficiency indexes such as the economy, the feature of environmental protection and energy saving of integrated energy system.
Description
Technical field
The invention belongs to integrated energy system Optimized Operation field, is a kind of industrial park comprehensive energy containing control strategy
System optimization scheduling and evaluation system and method.
Background technology
With to the more and more extensive concern of integrated energy system and in-depth study, integrated energy system access power distribution network
It would is that a universal phenomenon in future, integrated energy system can provide various energy resources supply, be applied in industrial park
Extensively, relatively traditional fired power generating unit power generation or single unit generation have more in terms of efficiency of energy utilization, environment friendly
Big advantage.The Optimized Operation of integrated energy system enjoys researcher to pay close attention to, and passes through Optimized Operation so that integrated energy system is transported
Row is more economical, and scheduling is divided into Optimized Operation a few days ago and Real time optimal dispatch two benches.Scheduling is based on load a few days ago a few days ago
Predicted value, but load prediction, in the Real-Time Scheduling stage, in advance the regular hour, changes there are error with reference to factor at that time
Situation, carries out appropriate amendment for obtained load prediction results and the Optimized Operation curve calculated, is transported in system
Capable current time generates real-time dispatch command, realizes the optimization for system.The addition of control strategy causes comprehensive energy
System operation is more flexible, economical.Contain control under can still being configured at present without very comprehensive system and method to industrial park
The integrated energy system of system strategy optimizes scheduling and metrics evaluation.
The content of the invention
It is an object of the present invention to propose a kind of industrial park integrated energy system Optimized Operation containing control strategy with commenting
Valency system and method, the Optimal Scheduling a few days ago of integrated energy system and Real time optimal dispatch problem are combined together, made
Integrated energy system economical operation is obtained, and optional control strategy is added in the Real-Time Scheduling stage so that integrated energy system operation
Business and user are benefited, and integrated energy system operation is more flexible, economical.
The technical scheme is that a kind of industrial park integrated energy system Optimized Operation containing control strategy and evaluation
System, it is characterized in that the system comprises：Distribution network operation business, integrated energy system control centre, integrated energy system equipment
With hot and cold, electric load user；The distribution network operation business is connected with integrated energy system control centre；The comprehensive energy system
System control centre is connected with integrated energy system equipment and hot and cold, electric load user.
Distribution network operation business, which is used to dispatch with integrated energy system, carries out Power Exchange；Use integrated energy system control centre
The output of each equipment inside Optimum Synthesis energy resource system, and dispatch command is issued, including issue direct load control strategy
Information gives the electric load user；Dispatch command, which is issued, after reading hot and cold load user demand and adjusting information adjusts hot and cold machine
The output of group；Issue power limitation control and from cutting-in control scheduling information to matching somebody with somebody network operation business.Integrated energy system equipment is used for
Control centre's dispatch command is received, realizes that unit output meets scheduling requirement by itself control；Hot and cold, electric load user uses
Information is adjusted in the control strategy information and the demand of upload user oneself for receiving control centre, completes the need based on polling excitation
Ask response process and temperature adjustment.
Industrial park integrated energy system is the large-scale synthesis energy resource system for industrial park design, and crew qiting has combustion
Gas-turbine, waste heat boiler, steam turbine, plate heat exchanger and steam type lithium bromide chiller, unit use the combustion of " 1+1 " pattern
Gas-Steam Combined Cycle unit, according to summer cooling and Winter heat supply different running method, may be selected different system structures,
Summer selection lithium bromide chiller is freezed using the low-pressure steam of waste heat boiler, and winter selection plate heat exchanger is utilized more than waste heat boiler
Heat heating, it is possible to provide electric, hot and cold, steam various energy resources.
A kind of industrial park integrated energy system Optimized Operation and evaluation method containing control strategy, it is characterized in that the side
Method, comprises the following steps：
Step 1：Scheduling instance a few days ago, is predicted hot and cold, electric load a few days ago, generates load prediction curve；
Step 2：Input each unit performance parameter, exchange power parameter and parameters of natural gas, wherein unit performance parameter
The thermal efficiency, electrical efficiency, maintenance cost including unit, power generation capacity；
Step 3：The scheduling model a few days ago for considering that economy is optimal is established, object function is integrated energy system dispatching cycle
Interior operation and maintenance cost is minimum, and constraints includes unit capacity constraint, exchanges power constraint, the matching of upstream and downstream unit output about
Beam, cold Constraints of Equilibrium, thermal balance constraint, electric equilibrium constraint；
Step 4：Using interior point method solving model, obtain optimal unit output a few days ago and exchange performance number；
Step 5：The Real-Time Scheduling moment, according to load prediction error, modified load prediction result；
Step 6：Whether control strategy is selected, if selection control strategy, enters step 7, if non-selected control strategy,
Enter step 8；
Step 7：Can be in final election control strategy set one or several, control strategy includes grid entry point invariable power control
Make, from cutting-in control, the control of user's direct load and user temperature control；
Step 8：Establish and consider the optimal Real-Time Scheduling model of economy, correct Real-Time Scheduling curve；
Step 9：Input pointer evaluating, evaluates integrated energy system, and index covers economy, the feature of environmental protection and energy saving
Property.
Unit performance parameter includes the thermal efficiency, electrical efficiency, maintenance cost, the power generation capacity of unit.Unit have gas turbine,
Waste heat boiler, steam turbine, lithium bromide chiller and plate heat exchanger, gas turbine parameter is by gas turbine capacityCombustion gas
Turbine thermal efficiency RFRGT, gas turbine electrical efficiency ηGTWith gas turbine maintenance cost mGT；Waste heat boiler parameter includes waste heat boiler
CapacityWaste heat boiler heat recovery efficiency ηb, waste heat boiler heat distribution factor alpha and waste heat boiler maintenance cost mb；Vapor wheel
Machine parameter includes capacityThermal efficiency RFRST, electrical efficiency ηGTWith maintenance cost mST；Lithium bromide chiller parameter includes capacityCoefficient of performanceLiWith maintenance cost mLi；Plate heat exchanger parameter includes capacityRecuperation of heat coefficients R FRpAnd maintenance
Expense mp；Exchanging power parameter includes exchanging power capacityPurchase electricity price pbWith sale of electricity electricity price ps；Parameters of natural gas includes
Natural gas unit cubic meter price pgWith heating value of natural gas Ccal。
Object function is：
C=Cg+Cex+Cm
Wherein, C is the total operation expense of system；CgFor the gas cost of gas turbine；CexFor integrated energy system
Power cost is exchanged with bulk power grid；CmFor system maintenance cost.
Unit capacity constraint needs to meet itself output bound：
Exchanging power constraint is：
Upstream and downstream unit output matching constraint, the unit heat positioned at system capacity upstream contribute otherwise are less than downstream unit
Contribute.
Hot and cold, the electric and steam that hot and cold, electric equilibrium constraint requirements system produces is at least above hot and cold, electric, steam load
Demand, the operational mode for system unrestricted choice electricity determining by heat or with the fixed heat of electricity.
Under direct load control, scheduling side issues the total load number for needing to cut down (or increase) and compensation electricity price to swash
User is encouraged to participate in load and cut down (either increase) user side having reduction plans (or load can be increased) and can cutting down for oneself
Satisfied compensation electricity price user side during (either increase) corresponding load is received after load cuts down (or increase) information, up to
The information for performing reduction (or increase) load is reported after compensation electricity price to itself being satisfied with, if do not obtained also after an inquiry
All cut down (or increase) loads, then increase the electricity price of certain Price Gradient, continue to inquire, until reach total reduction (or
Increase) load, then perform reduction (or increase) load instruction.Polling excitation type demand response plan is proposed in such control mode
Slightly, for scheduling side, by the electricity transaction price for gradually increasing certain gradient so that scheduling side cost of compensation is minimum,
User side also obtain satisfied compensation electricity price, while consider user side with dispatching the interests of side, finally make to two
The favourable transaction electricity of bilateral and price.
User temperature control in the control strategy.User side is interacted with scheduling side by real-time data base, user side
The temperature that subsequent time needs are adjusted is reported by the application in the mobile equipment held, scheduling lateral root is according on t moment user
The design temperature of reportThe indoor temperature of measurementOutdoor temperatureWith the performance parameter of building itself：Thermal resistance R is built,
Air specific heat Cair, calculate the variable quantity for reaching cold (or heat) load of subsequent time temperatureIt is superimposed upon original
Begin on cold (or heat) load curve, finally adjust unit output, meet cold (or heat) regulatory demand of user.
Cold becomes and turns to during summer：
The refrigeration duty demand of subsequent time system is
Wherein, QC tTo be the cold maintained needed for former temperature in system before temperature adjustment.
During winter, in order to realize the temperature change, the thermal change of the system is：
The thermal load demands of subsequent time system are
Wherein, QH tTo be the heat maintained needed for former temperature in system before temperature adjustment.
Industrial park integrated energy system Optimized Operation proposed by the present invention containing control strategy and evaluation system and method,
Be not required to extra investment, clear thinking, fully taken into account in scheduling process load prediction error and user and system it is mutual
It is dynamic, it is contemplated that the error of load prediction, Optimized Operation are divided into optimization and real-time optimization a few days ago；Consider the interaction of user and system,
Add control various control strategy so that integrated energy system operation is more economical, flexible.
Brief description of the drawings
Fig. 1 (a) and (b) are industrial park integrated energy system structure charts；
Fig. 2 is the industrial park integrated energy system Optimized Operation and evaluation method flow containing control strategy of the present invention
Figure；
Fig. 3 is load prediction curve；
Fig. 4 is Real time optimal dispatch interface.
Embodiment
Below in conjunction with the accompanying drawings, to the industrial park integrated energy system Optimized Operation containing control strategy and evaluation system and side
Method elaborates.It is emphasized that what the description below was merely exemplary, the scope that is not intended to be limiting of the invention and
It is applied.
Embodiment 1
Tu1Shi industrial parks integrated energy system structure chart.Fig. 1 (a) is summer central cooling method of operation structure chart, figure
1 (b) is winter central heating method of operation structure chart.As shown in Figure 1, integrated energy system bag in industrial park provided by the invention
Include：Distribution network operation business, integrated energy system control centre, integrated energy system equipment and hot and cold, electric load user.Wherein,
Distribution network operation business is connected with integrated energy system control centre, integrated energy system control centre and integrated energy system equipment
Be connected with hot and cold, electric load user, comprising equipment have gas turbine, waste heat boiler, steam turbine, lithium bromide chiller and plate
Formula heat exchanger, using gas turbine-Steam Combined Cycle unit.It is high to produce high temperature using natural gas power of burning for gas turbine
Flue gas is pressed, flue gas enters waste heat boiler and produces vapor, and the sub-high pressure steam of waste heat boiler, which enters in steam turbine, to do work, steam turbine
Pumping (or exhaust) is used further to heat supply.The driving steam (summer) that the low-pressure steam that waste heat boiler comes out is remembered as lithium bromide
Or the heat source (winter) of heat-exchange unit, meet air conditioner cold-heat load, further improve the output and efficiency of combined cycle unit.
According to summer cooling and Winter heat supply different running method, different system structures, summer selection lithium bromide chiller profit may be selected
Freezed with the low-pressure steam of waste heat boiler, winter selects plate heat exchanger to be heated using waste heat boiler waste heat, in the range of energy supply
Including a variety of industry situations such as machinery and auto parts and components, Grand Equipments, aerospace, there is provided electric, hot and cold, steam various energy resources, it is full
Sufficient load and energy demand, and realize economy, energy saving, the feature of environmental protection operation of the system.
Distribution network operation business, which is used to dispatch with integrated energy system, carries out Power Exchange, is supplied in integrated energy system electric energy
In the case of deficiency, electricity is supplemented, meets internal electrical load requirement, in the case of integrated energy system electric energy abundance, passes through
Unnecessary electric energy is sold, obtains extra income.
Integrated energy system control centre is used for the output of each equipment inside Optimum Synthesis energy resource system, and issues adjusting
The dispatch command of unit output, issues part control strategy information to electric load user and reads the hot and cold load user need of user
Seek adjusting information.
Equipment in integrated energy system is used to receive control centre's dispatch command, and unit output is realized by itself control
Meet scheduling requirement.
Hot and cold, electric load user is used to receive the control strategy information of control centre and the demand tune of upload user oneself
Information is saved, completes demand response process and temperature adjustment based on polling excitation.
Fig. 2 is industrial park integrated energy system Optimized Operation and evaluation method flow chart containing control strategy.Such as Fig. 2 institutes
Show, the industrial park integrated energy system Optimized Operation containing control strategy includes with evaluation method：
Step 1：Scheduling instance a few days ago, is predicted hot and cold, electric load a few days ago, generates load prediction curve；
Step 2：Input each unit performance parameter, exchange power parameter and parameters of natural gas, wherein unit performance parameter
The thermal efficiency, electrical efficiency, maintenance cost including unit, power generation capacity；
In the step, each unit performance parameter being inputted, exchanging power parameter and parameters of natural gas, wherein unit performance is joined
Number includes the thermal efficiency, electrical efficiency, maintenance cost, the power generation capacity of unit.Unit have gas turbine, waste heat boiler, steam turbine,
Lithium bromide chiller and plate heat exchanger, gas turbine parameter is by gas turbine capacityThermal efficiency of gas turbine RFRGT, combustion gas
Take turns electromechanical efficiency ηGTWith gas turbine maintenance cost mGT；Waste heat boiler parameter includes waste heat boiler capacityWaste heat boiler heat
Organic efficiency ηb, waste heat boiler heat distribution factor alpha and waste heat boiler maintenance cost mb；Steam turbine parameter includes capacity
Thermal efficiency RFRST, electrical efficiency ηGTWith maintenance cost mST；Lithium bromide chiller parameter includes capacityCoefficient of performanceLiAnd dimension
Shield expense mLi；Plate heat exchanger parameter includes capacityRecuperation of heat coefficients R FRpWith maintenance cost mp；Exchange power parameter bag
Include exchange power capacityPurchase electricity price pbWith sale of electricity electricity price ps；Parameters of natural gas includes natural gas unit cubic meter price pg
With heating value of natural gas Ccal。
Step 3：The scheduling model a few days ago for considering that economy is optimal is established, object function is integrated energy system dispatching cycle
Interior operation and maintenance cost is minimum, and constraints includes unit capacity constraint, exchanges power constraint, the matching of upstream and downstream unit output about
Beam, cold Constraints of Equilibrium, thermal balance constraint, electric equilibrium constraint；
Object function is：
C=Cg+Cex+Cm
Cg=pgFGT
Cex=psmax(Pex,0)+pbmin(Pex,0)
Cm=mGTPGT+mbQb+mSTQST+mLiQLi
Wherein, C is the total operation expense of system；CgFor the gas cost of gas turbine；CexFor integrated energy system
Power cost is exchanged with bulk power grid；FGTFor natural gas heat：FGT=CcalS, S are gas discharge；PGT、Qb、QST、QLiRespectively
Gas turbine, waste heat boiler, steam turbine and the energy of lithium bromide chiller production.
Unit capacity constraint needs to meet itself output bound：
Exchanging power constraint is：
Upstream and downstream unit output matching constraint, the unit heat positioned at system capacity upstream contribute otherwise are less than downstream unit
Contribute：
QGTηb≥Qb
αQbCOPLi≥QLi
(1-α)QbRFR≥QST
Hot and cold, the electric and steam that hot and cold, electric equilibrium constraint requirements system produces is at least above hot and cold, electric, steam load
Demand, the operational mode for system unrestricted choice electricity determining by heat or with the fixed heat of electricity.
QST≥Qhe
QLi≥Qco
PGT+PST+Pex≥Pele
Wherein, Qhe、Qco、PeleRespectively thermic load, refrigeration duty and electric load.
Step 4：Using interior point method solving model, obtain optimal unit output a few days ago and exchange performance number；
Step 5：The Real-Time Scheduling moment, according to load prediction error, modified load prediction result；
Step 6：Whether control strategy is selected, if selection control strategy, enters step 7, if non-selected control strategy,
Enter step 8；
Step 7：Can be in final election control strategy set one or several, control strategy includes grid entry point invariable power control
Make, from cutting-in control, the control of user's direct load and user temperature control.
Control is under direct load control, and scheduling side issues the total load number for needing to cut down (or increase) and compensation electricity price is come
Excitation user, which participates in load and cuts down (either increase) user side, reduction plans (or can increase load) and can cutting down for oneself
Satisfied compensation electricity price user side during (either increase) corresponding load is received after load cuts down (or increase) information, up to
The information for performing reduction (or increase) load is reported after compensation electricity price to itself being satisfied with, if do not obtained also after an inquiry
All cut down (or increase) loads, then increase the electricity price of certain Price Gradient, continue to inquire, until reach total reduction (or
Increase) load, then perform reduction (or increase) load instruction.Polling excitation type demand response plan is proposed in such control mode
Slightly, for scheduling side, by the electricity transaction price for gradually increasing certain gradient so that scheduling side cost of compensation is minimum,
User side also obtain satisfied compensation electricity price, while consider user side with dispatching the interests of side, finally make to two
The favourable transaction electricity of bilateral and price.
In the method, it is assumed that share three users, each user possesses P respectively1、P2、P3Load cut down surplus, and
Each receptible minimum transaction value of user is respectively p1、p2、p3.Wish that the reduction plans total amount of user side is P in control centreT,
And its initial transaction value is pi.After transaction starts, the control centre minimum user that can select to offer first is traded, if
The user's quotation is bid less than control centre, then transaction directly progress, and the load that the user possesses directly is cut down in user side
Surplus is cut down, respective transaction price is piIf minimum customer quote is bid still greater than control centre or control centre and user
Total load reduction cannot still be reached after being traded, at this time control centre can be improved compensation electricity price p by certain gradient delta pi+1
=pi+ Δ p, to encourage user to be traded, until meeting that total load cuts down demand.
User temperature control in control strategy.User side is interacted with scheduling side by real-time data base, and user side passes through
The application in mobile equipment held reports the temperature that subsequent time needs are adjusted, and scheduling lateral root is according to t moment reporting of user
Design temperatureThe indoor temperature of measurementOutdoor temperatureWith the performance parameter of building itself：Build thermal resistance R, air ratio
Hot Cair, calculate the variable quantity for reaching cold (or heat) load of subsequent time temperatureBe superimposed upon it is original it is cold (or
Person's heat) on load curve, unit output is finally adjusted, meet cold (or heat) regulatory demand of user.
Cold becomes and turns to during summer：
The refrigeration duty demand of subsequent time system is
Wherein, QC tTo be the cold maintained needed for former temperature in system before temperature adjustment.
During winter, in order to realize the temperature change, the thermal change of the system is：
The thermal load demands of subsequent time system are
Wherein, QH tTo be the heat maintained needed for former temperature in system before temperature adjustment.
Step 8：Establish and consider the optimal Real-Time Scheduling model of economy, correct Real-Time Scheduling curve；
Step 9：Input pointer evaluating, evaluates integrated energy system, and index covers economy, the feature of environmental protection and energy saving
Property.
Evaluation index parameter includes coal fired power generation CO2 emission coefficient μele, burning natural gas power carbon dioxide row
Put coefficient μgas, pneumoelectric conversion ratio RgtE, gas heat conversion RgtHWith electric coefficient of performancee。
By the energy consumption of natural gas cool and thermal power integrated energy system with directly being generated electricity using natural gas, heat supply and electricity system
Cold dividing is compared for system, and then carries out rational evaluation to integrated energy system.Evaluation criterion is broadly divided into economy and comments
Valency index, energy saving evaluation index and feature of environmental protection evaluation index.
First the energy expenditure of system is supplied to analyze to point.System loading includes electric load, thermic load, refrigeration duty, so
Divide and basic composition is Natural Gas Power Plant, gas fired-boiler and electrical chillers for system.Divide needs individually to meet for system
Corresponding cold and hot electricity demanding, the cool and thermal power balance of finance, credits and materials are as follows：
Electric equilibrium：
ESP=Pele+EESP
Wherein, ESPFor point electricity needed for system；EESPFor the electricity of electrical chillers consumption.
Thermal balance：
QHSP=Qhe
Wherein, QHSPFor point heat needed for system.
Cold-smoothing weighs：
EESP=Qco
Point for system primary energy consumption mainly on natural gas, be divided into Natural Gas Power Plant electricity production and gas fired-boiler
Heat production two parts.
The amount of natural gas F of power plant consumptionEFor：
The amount of natural gas F of gas fired-boiler consumptionHFor:
Divide total natural gas consumption F for systemSPFor：
FSP=FE+FH
Assessment indicator system covers economy, the feature of environmental protection and the aspect of energy saving three, wherein, economic index is total cost section
About rate, feature of environmental protection index are carbon dioxide discharge-reduction rate, and energy saving is subdivided into primary energy ratio and primary energy economic ratio.
The Economic feasibility target of system is mainly considered in terms of the system operation cost and maintenance cost two.Comprehensive energy
System cost can be expressed as：
OCCCHP=ps max(Pex,0)+pb min(Pex,0)+pg FCCHP+∑miQi
The operating cost for system is divided to be expressed as to consume gas cost：
OCSP=pg FSP+∑miQi
Wherein, FCCHPAmount of natural gas, Q are consumed for integrated energy systemiTo represent the output of i-th equipment in system.
Integrated energy system relative to point being for the total cost saving rate of system：
The primary energy consumption amount PEC of natural gas cool and thermal power integrated energy systemCCHPFor：
Wherein, αeFor power grid primary energy conversion ratio.
Divide the primary energy consumption amount PEC for systemSPFor：
PECSP=FSP
Then the primary energy economic ratio of natural gas cool and thermal power integrated energy system is：
Primary energy ratio is the thermal effect that energy and the ratio of primary energy consumption amount, also referred to as system are exported in system
Rate or total energy utilization rate or energy efficiency indexes.
The primary energy ratio of Gas Comprehensive energy resource system is：
Point it is for the primary energy ratio of system：
The predominant emissions of natural gas cool and thermal power integrated energy system in the process of running are carbon dioxide, therefore, by two
Carbon emission amount is aoxidized as feature of environmental protection evaluation index.
CO2 emissions CDE in natural gas cool and thermal power integrated energy systemCCHPFor：
CDECCHP=Egridμele+FCCHPμgas
Divide the CO2 emissions CDE in the system of supplyingSPFor：
CDESP=FSPμgas
The CO2 emissions emission reduction rate of integrated energy system is：
Embodiment 2
Below by taking the industrial park integrated energy system of a reality as an example, the reality of the present invention is illustrated by the way of data
Existing process.In the present embodiment, using summer heat supply running mode.
Step 1：Hot and cold, electric load a few days ago is predicted, generates load prediction curve, prediction result such as Fig. 3 institutes
Show.
Step 2：Input each unit performance parameter, exchange power parameter and parameters of natural gas, wherein unit performance parameter
The thermal efficiency, electrical efficiency, maintenance cost including unit, power generation capacity.Parameter setting is as shown in Figure 4.
Step 3：Establish the scheduling model a few days ago for considering that economy is optimal.
Step 4：Using interior point method solving model, obtain optimal unit output a few days ago and exchange performance number.Solving result such as table 1
It is shown.As a result contain hour level gas turbine, waste heat boiler, steam turbine, the output and comprehensive energy of lithium bromide chiller
System exchanges power with power distribution network.
Table scheduling result before 1 day
Step 5：The Real-Time Scheduling moment, according to load prediction error, modified load prediction result；
Step 6：Whether control strategy is selected, if selection control strategy, enters step 7, if non-selected control strategy,
Enter step 8；
Step 7：Can be in final election control strategy set one or several, wherein, the 1-6 moment is selected without control strategy；
7-12 moment cutting-in control and grid entry point power limitation control, 13-18 moment select cutting-in control, grid entry point power limitation control and use
Family load directly controls, and the 19-24 moment selects cutting-in control, grid entry point power limitation control, customer charge directly controls and user
Temperature control.
Step 8：Establish and consider the optimal Real-Time Scheduling model of economy, correct Real-Time Scheduling curve.Containing control strategy
Real-Time Scheduling the results are shown in Table 2, table 2 the result is that being performed by the control strategy in step 7.
Table 2 uses the real-time machine unit scheduling result of control strategy
Continued 2 uses the Real-Time Scheduling result of control strategy
Step 9：Input pointer evaluating, evaluates integrated energy system, and index covers economy, the feature of environmental protection and energy saving
Property.
The results are shown in Table 3 for index.
3 Real-Time Scheduling evaluation index result of table
Present invention may apply to the industrial park integrated energy system Optimized Operation containing control strategy and evaluation system and
Method.Industrial park integrated energy system Optimized Operation proposed by the present invention containing control strategy is not required to evaluation system and method
Extra investment, clear thinking, fully taken into account during adjusting load prediction error and scheduling side and user side it is mutual
It is dynamic, add performance driving economy and the flexibility of integrated energy system.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (21)
1. a kind of industrial park integrated energy system Optimized Operation and evaluation system containing control strategy, including power distribution network operation
Business, integrated energy system control centre, integrated energy system equipment and hot and cold, electric load user；The distribution network operation business with
Integrated energy system control centre is connected；The integrated energy system control centre and integrated energy system equipment and hot and cold, electric
Load user is connected.
2. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 1 is with evaluation
System, it is characterised in that：The distribution network operation business, which is used to dispatch with the integrated energy system, carries out Power Exchange.
3. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 1 is with evaluation
System, it is characterised in that：The integrated energy system control centre is used to optimize each equipment inside the integrated energy system
Contribute, and issue dispatch command.
4. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to right wants 3 is with evaluation
System, it is characterised in that：The dispatch command that issues includes issuing direct load control strategy information to the electric load user；
Read after hot and cold load user demand adjusts information and issue the output that dispatch command adjusts hot and cold unit；Issue power limitation control
Matched somebody with somebody network operation business with from cutting-in control scheduling information.
5. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 1 is with evaluation
System, it is characterised in that：The integrated energy system equipment is used to receive integrated energy system control centre dispatch command, leads to
Cross itself control and realize that unit output meets scheduling requirement.
6. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 1 is with evaluation
System, it is characterised in that：Hot and cold, the electric load user is used for the control strategy for receiving the integrated energy system control centre
Information and the demand of upload user oneself adjust information, complete demand response process and temperature adjustment based on polling excitation.
7. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 1 is with evaluation
System, it is characterised in that：The system is the large-scale synthesis energy resource system for industrial park design, and crew qiting has combustion gas wheel
Machine, waste heat boiler, steam turbine, plate heat exchanger and steam type lithium bromide chiller, unit use the combustion gas-steaming of " 1+1 " pattern
Vapour combined cycle unit, according to summer cooling and Winter heat supply different running method, may be selected different system structures, summer choosing
Select lithium bromide chiller using the low-pressure steam of waste heat boiler to freeze, winter selection plate heat exchanger utilizes waste heat boiler waste heat system
Heat, it is possible to provide electric, hot and cold, steam various energy resources.
8. a kind of industrial park integrated energy system Optimized Operation and evaluation method containing control strategy, include the following steps：
Step 1：Scheduling instance a few days ago, is predicted hot and cold, electric load a few days ago, generates load prediction curve；
Step 2：Input each unit performance parameter, exchange power parameter and parameters of natural gas；
Step 3：The scheduling model a few days ago for considering that economy is optimal is established, object function is the integrated energy system dispatching cycle
Interior operation and maintenance cost is minimum, and constraints includes unit capacity constraint, exchanges power constraint, the matching of upstream and downstream unit output about
Beam, cold Constraints of Equilibrium, thermal balance constraint, electric equilibrium constraint；
Step 4：The scheduling model a few days ago is solved using interior point method, obtains optimal unit output a few days ago and exchange performance number；
Step 5：The Real-Time Scheduling moment, according to load prediction error, modified load prediction result；
Step 6：Whether control strategy is selected, if selection control strategy, enters step 7, if non-selected control strategy, enters
Step 8；
Step 7：Can be in final election control strategy set one or several；
Step 8：Establish and consider the optimal Real-Time Scheduling model of economy, correct Real-Time Scheduling curve；
Step 9：Input pointer evaluating, evaluates the integrated energy system.
9. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation side
Method, it is characterised in that：The unit performance parameter includes the thermal efficiency, electrical efficiency, maintenance cost, the power generation capacity of unit.
10. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：The control strategy includes grid entry point power limitation control, is controlled from cutting-in control, user's direct load
Controlled with user temperature.
11. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：The index covers economy, the feature of environmental protection and energy saving.
12. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 9 and evaluation
Method, it is characterised in that：Unit has gas turbine, waste heat boiler, steam turbine, lithium bromide chiller and plate heat exchanger, combustion gas
Turbine parameter is by gas turbine capacityThermal efficiency of gas turbine RFRGT, gas turbine electrical efficiency ηGTSafeguarded with gas turbine
Expense mGT；Waste heat boiler parameter includes waste heat boiler capacityWaste heat boiler heat recovery efficiency ηb, waste heat boiler heat distribution
Factor alpha and waste heat boiler maintenance cost mb；Steam turbine parameter includes capacityThermal efficiency RFRST, electrical efficiency ηGTAnd maintenance
Expense mST；Lithium bromide chiller parameter includes capacityCoefficient of performanceLiWith maintenance cost mLi；Plate heat exchanger parameter bag
Include capacityRecuperation of heat coefficients R FRpWith maintenance cost mp；Exchanging power parameter includes exchanging power capacityPower purchase electricity
Valency pbWith sale of electricity electricity price ps；Parameters of natural gas includes natural gas unit cubic meter price pgWith heating value of natural gas Ccal。
13. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：The object function is
C=Cg+Cex+Cm
Wherein, C is the total operation expense of system；CgFor the gas cost of gas turbine；CexFor integrated energy system and greatly
Power grid exchanges power cost；CmFor system maintenance cost.
14. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：
The unit capacity constraint needs to meet itself output bound：
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15. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：It is described exchange power constraint be：
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16. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：The upstream and downstream unit output matching constraint is：Unit heat positioned at system capacity upstream is contributed will
Not less than downstream unit output.
17. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 8 and evaluation
Method, it is characterised in that：Hot and cold, the electric and steam that hot and cold, the electric equilibrium constraint requirements system produces at least above it is cold,
Heat, electricity, the demand of steam load, the operational mode for system unrestricted choice electricity determining by heat or with the fixed heat of electricity.
18. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 10 and evaluation
Method, it is characterised in that：Under user's direct load control, scheduling side issues the total load for needing to cut down (or increase)
Number and compensation electricity price have reduction plans or can increasing for oneself to encourage user to participate in load and cut down either increase user side
Load and the satisfied compensation electricity price user side cut down when either increasing corresponding load receive load reduction or increase information
Afterwards, the information for performing and cutting down or increasing load is reported after itself satisfaction compensation electricity price is reached, if after an inquiry also
Do not obtain and all cut down or increase loads, then increase the electricity price of certain Price Gradient, continue to inquire, until reach it is total cut down or
Person increases load, then performs reduction or increase load instruction.
19. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 10 and evaluation
Method, it is characterised in that the user temperature control includes：User side is interacted with scheduling side by real-time data base, user side
The temperature that subsequent time needs are adjusted is reported by the application in the mobile equipment held, scheduling lateral root is according on t moment user
The design temperature of reportThe indoor temperature of measurementOutdoor temperatureWith the performance parameter of building itself：Thermal resistance R is built,
Air specific heat Cair, calculate and reach that subsequent time temperature is cold or the variable quantity of thermic loadOrIt is superimposed upon original cold
Or on thermic load curve, unit output is finally adjusted, meet that user is cold or thermal conditioning demand.
20. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 19 and evaluation
Method, it is characterised in that cold becomes and turns to during summer：
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Wherein, QC tTo be the cold maintained needed for former temperature in system before temperature adjustment.
21. a kind of industrial park integrated energy system Optimized Operation containing control strategy according to claim 19 and evaluation
Method, it is characterised in that during winter, in order to realize the temperature change, the thermal change of the system is：
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