CN107910894B - Control method, device and system for combined operation of wind power equipment and thermoelectric equipment - Google Patents

Control method, device and system for combined operation of wind power equipment and thermoelectric equipment Download PDF

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CN107910894B
CN107910894B CN201711190954.3A CN201711190954A CN107910894B CN 107910894 B CN107910894 B CN 107910894B CN 201711190954 A CN201711190954 A CN 201711190954A CN 107910894 B CN107910894 B CN 107910894B
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equipment
thermoelectric
power
wind power
heat supply
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CN107910894A (en
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孙宏斌
郭庆来
王彬
于婧
沈欣炜
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Shenzhen International Graduate School of Tsinghua University
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Tsinghua-Berkeley Shenzhen Institute Preparation Office
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    • H02J3/386—
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

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Abstract

The invention discloses a method, a device and a system for controlling combined operation of wind power equipment and thermoelectric equipment. The control method for the combined operation of the wind power equipment and the thermoelectric equipment comprises the following steps: determining constraints of thermal power and electric power of the thermoelectric device, constraints of electric power of the wind power device, and constraints of a sum of electric power of the wind power device and the thermoelectric device based on the device parameters; determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameters; on the premise of meeting the constraint conditions, determining the electric power of the wind power equipment, and the thermal power and the electric power of the thermoelectric equipment on the premise of meeting the thermal load requirement of the thermoelectric equipment and aiming at realizing the maximization of the benefit of the combined operation system of the wind power equipment and the thermoelectric equipment; and sending a wind power output digestion instruction to the wind power equipment, and sending a scheduling instruction to the wind power equipment. The invention can improve the flexibility of equipment operation, effectively promote wind power consumption, reduce the air abandoning amount and improve the economic benefit.

Description

Control method, device and system for combined operation of wind power equipment and thermoelectric equipment
Technical Field
The embodiment of the invention relates to a control technology of a comprehensive energy system, in particular to a control method, a device and a system for combined operation of wind power equipment and thermoelectric equipment.
Background
In recent years, wind power generation is rapidly developed worldwide, and the installed wind power capacity in China becomes the first world. However, due to randomness, volatility and uncertainty of wind power output, wind power consumption is subjected to bottleneck, and certain negative influence is brought to power grid operation. In addition, because the thermoelectric unit carries out the operation mode of "decide electricity with heat", reduced the peak regulation ability of thermoelectric unit, further reduced wind-powered electricity generation and absorbed, produced a large amount of abandoned wind.
Under the condition, the superiority of the energy Internet which transmits energy in various forms such as electricity, heat and the like is reflected, and the connection between a heat supply network and a power grid based on a thermoelectric unit area is more and more close. The regional heat supply network comprises a large amount of heat supply pipelines, and each pipeline can be used as a heat storage carrier due to the physical characteristics of the pipeline, so that the energy storage characteristics of the regional heat supply network can be fully utilized to increase the flexibility of system operation, and the waste of wind is reduced.
At present, certain research results have been obtained by better developing and researching the energy storage characteristics of a regional heat supply network, but the defects of large calculated amount, difficult convergence, non-intuition, difficult engineering application and the like exist.
Disclosure of Invention
The invention provides a control method, a device and a system for combined operation of wind power equipment and thermoelectric equipment, which are used for improving the flexibility of equipment operation, effectively promoting wind power consumption, reducing air curtailment and improving economic benefits by considering the maximization of the total yield of productivity.
In a first aspect, an embodiment of the present invention provides a control method for joint operation of a wind power plant and a thermoelectric plant, where the wind power plant is configured to generate electric power to supply power to a power grid, and the thermoelectric plant is configured to generate electric power to supply power to the power grid and generate thermal power to supply heat to a district heating grid, and the method includes:
acquiring equipment parameters of the wind power equipment and the thermoelectric equipment, and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
determining constraints of thermal power and electrical power of the thermoelectric device, constraints of electrical power of the wind power device, and constraints of a sum of electrical power of the wind power device and the thermoelectric device based on the device parameters;
determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter;
determining the electric power of the wind power equipment, the thermal power of the thermoelectric equipment and the electric power under the premise of meeting the thermal load demand of the thermoelectric equipment and the aim of realizing the maximum benefit of the combined operation system of the wind power equipment and the thermoelectric equipment on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint conditions of the electric power of the wind power equipment, the constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment and the energy storage constraint conditions of the regional heat supply network, wherein the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment are determined, the thermal load demand of the thermoelectric equipment is met, namely the sum of the thermal power of the thermoelectric equipment and the charging and discharging power of the regional heat supply network is equal to the sum of the thermal load power of the thermoelectric equipment in a preset time period, the maximum benefit maximization of the combined operation system of the wind power equipment and the thermoelectric equipment is realized Melting;
and sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
Optionally, the constraints on thermal power and electric power of the thermoelectric device include:
Figure GDA0002536124220000031
Figure GDA0002536124220000032
Figure GDA0002536124220000033
Figure GDA0002536124220000034
wherein the content of the first and second substances,
Figure GDA0002536124220000035
is the thermal power of the thermoelectric device at time t, hmaxIs the upper thermal power limit of the thermoelectric device at time t,
Figure GDA0002536124220000036
is the electrical power of the thermoelectric device at time t, p1,p2,p3,hm,k1,k2,k3Is a device parameter of the thermoelectric device.
Optionally, the constraint condition of the electric power of the wind power plant includes:
Figure GDA0002536124220000037
wherein the content of the first and second substances,
Figure GDA0002536124220000038
is the electrical power of the wind power plant at time t,
Figure GDA0002536124220000039
and the predicted maximum electric power of the wind power equipment at the time t.
Optionally, the constraint condition of the sum of the electric powers of the wind power plant and the thermoelectric plant includes:
Figure GDA00025361242200000310
wherein the content of the first and second substances,
Figure GDA00025361242200000311
is the electrical power of the wind power plant at time t,
Figure GDA00025361242200000312
is the electrical power of the thermoelectric device at time t,
Figure GDA00025361242200000313
is a lower limit and an upper limit of a sum of electric powers of the wind power plant and the thermoelectric plant calculated in advance.
Optionally, the energy storage constraint conditions of the area heat supply network include:
Et＝f1(Ht)
T'S,t＝f2(ΦL,t-1,ΦS,t,ΦS,t-1)
Ht＝f3(T'S,t,ΦS,t)
Et＝f4(T'S,t,ΦS,t)
wherein, T'S,min≤T'S,t≤T'S,max，Emin≤Et≤Emax，EtIs the heat storage capacity, H, of the regional heat supply network at time ttIs the charging and discharging power T 'of the area heat supply network at the moment T'S,tIs the node temperature, phi, of the area heat supply network at time tL,t-1Is the thermal load, phi, of the thermoelectric device at time t-1S,tIs the thermal power, Φ, of the thermoelectric device at time tS,t-1Is the thermal power, T ', of the thermoelectric device at time T-1'S,minIs the lower limit of the node temperature of the regional heat supply network, T'S,maxIs the upper limit of the node temperature of the district heating network, EminIs the lower limit of the heat storage capacity of the district heating network, EmaxIs the upper limit of the heat storage capacity of the regional heat network.
Optionally, the thermoelectric device achieving thermal equilibrium includes:
Figure GDA00025361242200000411
wherein T is the preset time length,
Figure GDA0002536124220000041
is the thermal power of the thermoelectric device at time t, HtIs the heat charging and discharging power of the area heat supply network at the time t,
Figure GDA0002536124220000042
is the thermal load power of the thermoelectric device at time t.
Optionally, the maximum benefit achieved by the combined operation of the wind power equipment and the thermoelectric equipment comprises:
Figure GDA0002536124220000043
wherein T is scheduling of the wind power equipment and the thermoelectric equipmentR is the total profit of the combined operation of the wind power plant and the thermal power plant, C is the operating cost,
Figure GDA0002536124220000044
is the electrical power of the thermoelectric device at time t,
Figure GDA0002536124220000045
is the electrical power of the wind power plant at time t,
Figure GDA0002536124220000046
is the thermal load power of the thermoelectric device at time t,
Figure GDA0002536124220000047
is the price of the on-line electricity of the thermoelectric device at the time t,
Figure GDA0002536124220000048
is the grid-surfing electricity price of the wind power equipment at the moment t,
Figure GDA0002536124220000049
is the heat supply price of the thermoelectric device at time t, FtIs said operating cost at time t, FtThe calculation formula of (a) is as follows:
Figure GDA00025361242200000410
wherein a, b and C are respectively the running cost coefficients of the thermoelectric equipment, the value range of a is 0.01-1, the value range of b is 20-20.5, the value range of C is 600-1500, and C isvIs an operating parameter of the thermoelectric device.
In a second aspect, an embodiment of the present invention further provides a control apparatus for jointly operating a wind power plant and a thermoelectric plant, where the wind power plant is configured to generate electric power to supply power to a power grid, and the thermoelectric plant is configured to generate electric power to supply power to the power grid and generate thermal power to supply heat to a district heating grid, and the apparatus includes:
the acquisition module is used for acquiring equipment parameters of the wind power equipment and the thermoelectric equipment and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
a constraint condition determination module for determining constraint conditions of thermal power and electric power of the thermoelectric device, constraint conditions of electric power of the wind power device and constraint conditions of sum of electric power of the wind power device and the thermoelectric device based on the device parameters; determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter;
a power determining module, configured to determine the electric power of the wind power plant, the thermal power of the thermoelectric plant and the electric power of the thermoelectric plant on the premise of meeting a constraint condition of the thermal power and the electric power of the thermoelectric plant, a constraint condition of a sum of the electric powers of the wind power plant and the thermoelectric plant, and an energy storage constraint condition of the local heat grid, on the premise of meeting a thermal load demand of the thermoelectric plant and with a goal of maximizing a benefit of the combined operation system of the wind power plant and the thermoelectric plant, wherein the thermal power and the electric power of the wind power plant and the thermoelectric plant are determined, and the maximization of the benefit of the combined operation system of the wind power plant and the thermoelectric plant, that is, the maximization of the total benefit of the combined operation of the wind power plant and the thermoelectric plant and the sum of the thermal load power of the thermoelectric plant are achieved by meeting the thermal load demand of the thermoelectric plant, that is, within a preset time period, the sum of Maximizing the difference of the line costs;
the sending module is used for sending a wind power output consumption instruction to the wind power equipment and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors implement the control method for the combined operation of the wind power plant and the thermoelectric plant according to the first aspect.
In a fourth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of controlling the combined operation of a wind power plant and a thermoelectric plant, the method comprising:
acquiring equipment parameters of the wind power equipment and the thermoelectric equipment, and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
determining constraints of thermal power and electrical power of the thermoelectric device, constraints of electrical power of the wind power device, and constraints of a sum of electrical power of the wind power device and the thermoelectric device based on the device parameters;
determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter;
on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint condition of the electric power of the wind power equipment, the constraint condition of the sum of the electric power of the wind power equipment and the thermoelectric equipment, the energy storage constraint condition of the regional heat supply network and the heat load requirement of the thermoelectric equipment, determining the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment by taking the maximum benefit of the combined operation system of the wind power equipment and the thermoelectric equipment as a target, wherein the sum of the thermal power of the thermoelectric equipment and the heat-discharging power of the regional heat supply network is equal to the sum of the thermal load power of the thermoelectric equipment within a preset time period, the efficiency maximization of the combined operation system of the wind power equipment and the thermoelectric equipment is realized, namely the maximization of the difference between the total income and the operation cost of the combined operation of the wind power equipment and the thermoelectric equipment is realized;
and sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
In a fifth aspect, an embodiment of the present invention further provides a system for jointly operating a wind power device and a thermoelectric device, including: wind power equipment, thermoelectric equipment and controlling means, wherein, controlling means adopts above-mentioned second aspect the device, wind power equipment is used for producing electric power and supplies power for the electric wire netting, thermoelectric equipment is used for producing electric power and does the electric wire netting power supply and produce the heat power and supply heat for regional heat supply network.
The invention determines the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment by taking the working capacity of the equipment and the heat storage capacity of a regional heat supply network as constraint conditions and meeting the heat load requirement as a premise and taking the benefit maximization of a combined operation system of the wind power equipment and the thermoelectric equipment as a target, controls the wind power equipment and the thermoelectric equipment to operate, assists the thermoelectric equipment to supply heat by virtue of the heat stored in a heat supply pipeline of the regional heat supply network, can properly reduce or increase the generated thermal power, thereby providing more flexible electric power output adjustment range, providing space for consuming more electric power of a wind turbine generator set, improving the operation flexibility of the thermoelectric equipment, effectively promoting wind power consumption, reducing the air abandonment amount, and considering the maximization of the total yield of the productivity and improving the economic benefit.
Drawings
FIG. 1 is a schematic structural diagram of a combined operation system of a wind power plant and a thermoelectric plant according to an embodiment of the present invention;
FIG. 2 is a flow chart of a control method for combined operation of a wind power plant and a thermoelectric plant according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of thermal power and electrical power constraints for a thermoelectric device provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a control device for combined operation of a wind power plant and a thermoelectric plant according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a combined operation system of a wind power plant and a thermoelectric plant according to an embodiment of the present invention, and referring to fig. 1, the system includes: the system comprises wind power equipment, thermoelectric equipment and a control device, wherein the wind power equipment is used for generating electric power to supply power to a power grid, the thermoelectric equipment is used for generating electric power to supply power to the power grid and generating thermal power to supply heat to a regional heat supply network, and the control device is used for controlling the electric power of the wind power equipment, the electric power of the thermoelectric equipment and the thermal power so that the thermoelectric equipment generates electric power to assist the wind power equipment to supply power to the power grid to meet the electric load demand while generating thermal power to supply heat to the regional heat supply network to meet the heat load power demand. In this embodiment, regional heat supply network comprises a large amount of heat supply pipelines, based on the physical characteristics of these heat supply pipelines, can regard heat supply pipeline as the carrier of heat-retaining, and the heat of storing in the heat supply pipeline also can give regional heat supply network heat supply, just so can supplementary thermoelectric device, corresponding thermoelectric device can reduce or increase the thermal power of output in an appropriate amount owing to the heat of storing that has had heat supply pipeline, thereby provide more nimble electric power output adjustment range, provide the space for the absorption when wind turbine generator system electric power. The system of this embodiment moves in a flexible way, can adjust along with actual demand to can effectively promote wind-powered electricity generation and consume, reduce and abandon the amount of wind.
Fig. 2 is a flowchart of a control method for joint operation of a wind power device and a thermoelectric device according to an embodiment of the present invention, where the embodiment is applicable to the system shown in fig. 1, and the method may be executed by the control device, and specifically includes the following steps:
step 101, acquiring equipment parameters of wind power equipment and thermoelectric equipment, and acquiring energy storage parameters of a regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
the device parameters may be stored in the memory of the device in advance, corresponding data may be directly read from the memory, and the device parameters may be obtained by simple calculation according to the read data.
Step 102, determining constraint conditions of thermal power and electric power of the thermoelectric equipment, constraint conditions of electric power of the wind power equipment and constraint conditions of sum of electric power of the wind power equipment and the thermoelectric equipment based on equipment parameters;
based on the operating capacity of the equipment, and the influence of the ambient environment and the equipment on each other during operation, the power generated by wind power equipment or thermoelectric equipment is constrained by various factors, and the constraints are from the capacity of the equipment and the mutual influence of combined operation. The embodiment determines a plurality of constraint conditions based on equipment parameters representing the working capacity of the equipment, the constraint conditions are in a union set, and elements in the constraint conditions can be used as reference parameters for scheduling the wind power equipment and the thermoelectric equipment to jointly run.
103, determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameters;
the temperature that the heat supply pipeline of regional heat supply network can bear, the heat that can store are all restricted to the self physical properties of pipeline, determine the scheduling reference parameter that the energy storage restraint condition was used as thermoelectric equipment heat supply based on this.
104, on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint conditions of the electric power of the wind power equipment, the constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment and the energy storage constraint conditions of a regional heat network, on the premise of meeting the thermal load requirement of the thermoelectric equipment and aiming at realizing the maximum benefit of a combined operation system of the wind power equipment and the thermoelectric equipment, determining the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment;
the method meets the heat load requirement of the thermoelectric equipment, namely the sum of the heat power of the thermoelectric equipment and the heat charging and discharging power of the regional heat supply network in a preset time is equal to the sum of the heat load power of the thermoelectric equipment, and achieves maximization of the benefit of the combined operation system of the wind power equipment and the thermoelectric equipment, namely maximization of the difference between the total income of the combined operation of the wind power equipment and the thermoelectric equipment and the operation cost.
In this embodiment, on the premise of satisfying the constraint conditions in steps 102 and 103, on the premise of satisfying the thermal load demand, with the goal of maximizing the benefit of the combined operation system of the wind power plant and the thermoelectric plant, the electric power of the wind power plant, the thermal power and the electric power of the thermoelectric plant are determined, that is, the thermoelectric plant operates with the thermal power and the electric power generated, and the wind power plant operates with the electric power generated, in this state, the thermoelectric plant can achieve thermal balance, the combined operation of the wind power plant and the thermoelectric plant achieves maximum benefit, and the electric power of the wind power plant, the thermal power of the thermoelectric plant, and the electric power of the thermoelectric plant all satisfy the constraint conditions.
And 105, sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the wind power equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
And the control device respectively sends instructions to the wind power equipment and the thermoelectric equipment to control the wind power equipment and the thermoelectric equipment to work with the power calculated in the step 104 as the target.
According to the technical scheme, the working capacity of the equipment and the heat storage capacity of the regional heat supply network are taken as constraint conditions, the heat load requirement is met, the purpose of maximizing the benefit of the combined operation system of the wind power equipment and the thermoelectric equipment is taken as an objective, the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment are determined, the wind power equipment and the thermoelectric equipment are controlled to operate according to the objective, the heat stored in the heat supply pipeline of the regional heat supply network is used for assisting the heat supply of the thermoelectric equipment, the generated thermal power can be properly reduced or increased, more flexible electric power output adjustment ranges are provided, space is provided for consuming more electric power of the wind turbine generator, the operation flexibility of the thermoelectric equipment can be improved, wind power consumption is effectively promoted, the air volume is reduced, the total yield maximization of the capacity is considered, and the economic.
On the basis of the above technical solution, the constraint conditions of this embodiment may be as follows:
constraints on thermal and electrical power of the thermoelectric device include:
Figure GDA0002536124220000111
Figure GDA0002536124220000112
Figure GDA0002536124220000113
Figure GDA0002536124220000114
wherein the content of the first and second substances,
Figure GDA0002536124220000115
is the thermal power of the thermoelectric device at time t, hmaxIs the upper thermal power limit of the thermoelectric device at time t,
Figure GDA0002536124220000116
is the electrical power of the thermoelectric device at time t, p1,p2,p3,hm,k1,k2,k3Is a device parameter, k, of a thermoelectric device1,k2,k3Can be according to p1,p2,p3,hmAnd (4) calculating. FIG. 3 is a schematic diagram of constraints on thermal power and electric power of a thermoelectric device according to an embodiment of the present invention, in which referring to FIG. 3, the thermal power and the electric power of the thermoelectric device are represented by a two-dimensional coordinate system, a horizontal axis represents the thermal power, and a vertical axis represents the electric power, and a quadrilateral shape is obtained according to the constraints, the thermal power and the electric power of the thermoelectric device are consistent with the constraints on the thermal power and the electric power of the thermoelectric device as long as any point in the quadrilateral shape is takenIs conditional.
The constraint conditions of the electric power of the wind power plant include:
Figure GDA0002536124220000117
wherein the content of the first and second substances,
Figure GDA0002536124220000118
is the electric power of the wind power plant at time t,
Figure GDA0002536124220000119
and the predicted maximum electric power of the wind power equipment at the time t. Considering that the wind power plant has the function of cutting off the output power of the wind power equipment, in actual operation, the electric power of the wind power equipment at the time t cannot exceed the predicted maximum electric power of the wind power equipment at the time t.
The constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment comprise:
Figure GDA0002536124220000121
wherein the content of the first and second substances,
Figure GDA0002536124220000122
is the electric power of the wind power plant at time t,
Figure GDA0002536124220000123
is the electrical power of the thermoelectric device at time t,
Figure GDA0002536124220000124
is the lower limit and the upper limit of the sum of the electric powers of the wind power equipment and the thermoelectric equipment which are calculated in advance. The control device schedules the thermoelectric equipment and the wind power equipment daily, configures the proportion of electric power and thermal power of the thermoelectric equipment, and calculates the lower limit and the upper limit of the sum of the electric power of the wind power equipment and the thermoelectric equipment according to the previous scheduling value.
The energy storage constraint conditions of the regional heat supply network comprise:
Et＝f1(Ht)
T'S,t＝f2(ΦL,t-1,ΦS,t,ΦS,t-1)
Ht＝f3(T'S,t,ΦS,t)
Et＝f4(T'S,t,ΦS,t)
wherein, T'S,min≤T'S,t≤T'S,max，Emin≤Et≤Emax，EtIs the heat storage capacity of the regional heat supply network at time t, HtIs the heat charging and discharging power of the regional heat supply network at time T, TS',tIs the node temperature, phi, of the local heat network at time tL,t-1Is the thermal load, phi, of the thermoelectric device at time t-1S,tIs the thermal power, phi, of the thermoelectric device at time tS,t-1Is the thermal power, T ', of the thermoelectric device at time T-1'S,minIs the lower limit of the node temperature of the regional heat supply network, T'S,maxIs the upper limit of the node temperature of the district heating network, EminIs the lower limit of the heat storage capacity of the district heating network, EmaxIs the upper limit of the heat storage capacity of the district heating network. The upper and lower limits of the temperature of the regional heat supply network can be obtained according to the self capacity of the heat supply pipeline, and then the upper and lower limits of the heat storage capacity of the regional heat supply network can be obtained according to the constraint conditions. The heat charging and discharging power of the regional heat supply network at the time t can be obtained by calculation according to the enthalpy difference between the heat charging quantity and the heat discharging quantity of the heat supply pipeline, and the heat storage capacity of the regional heat supply network is related to the heat charging and discharging power of the regional heat supply network at the time t according to the constraint condition.
The thermoelectric device achieves thermal equilibrium including:
Figure GDA0002536124220000131
wherein T is a preset time length,
Figure GDA0002536124220000132
is the thermal power of the thermoelectric device at time t, HtIs the heat charging and discharging power of the regional heat supply network at the time t,
Figure GDA0002536124220000133
is the thermal load power of the thermoelectric device at time t. For the current scheduling method, to achieve that the sum of the thermal power of the thermoelectric device and the thermal power of the local heat supply network is equal to the thermal load power of the thermoelectric device within the preset time period, in this embodiment, the preset time period may be 24 hours, that is, the total thermal supply and the total thermal load need to be balanced within 24 hours. Combining the constraint conditions, the thermal power of the thermoelectric device at the moment t can be obtained through the target of thermal balance
Figure GDA0002536124220000134
The electric power of the thermoelectric device at the moment t can be obtained in the quadrilateral area in combination with the graph of FIG. 3
Figure GDA0002536124220000135
Substituting the value range into the following target.
The combined operation of the wind power equipment and the thermoelectric equipment for realizing the maximum benefit comprises the following steps:
Figure GDA0002536124220000136
wherein T is the total duration of scheduling the wind power equipment and the thermoelectric equipment, R is the total income of the combined operation of the wind power equipment and the thermoelectric equipment, C is the operation cost,
Figure GDA0002536124220000137
is the electrical power of the thermoelectric device at time t,
Figure GDA0002536124220000138
is the electric power of the wind power plant at time t,
Figure GDA0002536124220000139
is the thermal load power of the thermoelectric device at time t,
Figure GDA00025361242200001310
is the on-line electricity price of the thermoelectric device at time t,
Figure GDA00025361242200001311
is the grid-surfing electricity price of the wind power equipment at the time t,
Figure GDA00025361242200001312
is the heat supply price of the thermoelectric equipment at time t, FtIs the running cost at time t, FtThe calculation formula of (a) is as follows:
Figure GDA00025361242200001313
wherein a, b and C are respectively the running cost coefficients of the thermoelectric equipment, the value range of a is 0.01-1, the value range of b is 20-20.5, the value range of C is 600-1500, and CvIs an operating parameter of the thermoelectric device. Combining the constraint conditions, and taking the maximization of the F value (namely the maximization of the difference between the total income of the combined operation of the wind power equipment and the thermoelectric equipment and the operation cost) as the target, the electric power of the thermoelectric equipment at the time t can be obtained
Figure GDA00025361242200001314
Electric power of wind power plant
Figure GDA00025361242200001315
Fig. 4 is a schematic structural diagram of a control apparatus for combined operation of a wind power plant and a thermoelectric plant according to an embodiment of the present invention, and referring to fig. 4, the apparatus includes: the system comprises an acquisition module 11, a constraint condition determination module 12, a power determination module 13 and a sending module 14, wherein the acquisition module 11 is used for acquiring device parameters of the wind power device and the thermoelectric device and acquiring energy storage parameters of the regional heat supply network, the device parameters are used for representing the working capacity of the device, and the energy storage parameters are used for representing the capacity of the regional heat supply network for storing heat; a constraint determining module 12 for determining constraints of thermal power and electric power of the thermoelectric device, constraints of electric power of the wind power device, and constraints of a sum of electric power of the wind power device and the thermoelectric device based on the device parameters; determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter; a power determining module 13, configured to determine the electric power of the wind power plant, the thermal power of the thermoelectric plant and the electric power of the thermoelectric plant on the premise of meeting a constraint condition of the thermal power and the electric power of the thermoelectric plant, a constraint condition of a sum of the electric powers of the wind power plant and the thermoelectric plant, and an energy storage constraint condition of the local heat grid, on the premise of meeting a thermal load demand of the thermoelectric plant and with the goal of maximizing a combined operation system benefit of the wind power plant and the thermoelectric plant, where the thermal power and the electric power of the wind power plant and the thermoelectric plant are determined, where the thermal load demand of the thermoelectric plant, that is, the sum of the thermal power of the thermoelectric plant and the thermal power of the local heat grid is equal to a sum of the thermal load powers of the thermoelectric plant within a preset time period, so as to maximize a combined operation system benefit of the wind power plant and the thermoelectric plant, that is, a total benefit of The difference of the operation cost is maximized; the sending module 14 is configured to send a wind power output consumption instruction to the wind power equipment, and send a scheduling instruction to the thermoelectric equipment, where the wind power output consumption instruction includes electric power of the wind power equipment, and the scheduling instruction includes thermal power and electric power of the thermoelectric equipment.
The control device for the combined operation of the wind power equipment and the thermoelectric equipment, provided by the embodiment of the invention, can execute the control method for the combined operation of the wind power equipment and the thermoelectric equipment, provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Fig. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present invention, as shown in fig. 5, the apparatus includes a processor 20, a memory 21, an input device 22, and an output device 23; the number of processors 20 in the device may be one or more, and one processor 20 is taken as an example in fig. 5; the processor 20, the memory 21, the input means 22 and the output means 23 in the device may be connected by a bus or other means, as exemplified by the bus connection in fig. 5.
The memory 21 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the control method for the combined operation of the wind power plant and the thermoelectric plant in the embodiment of the present invention. The processor 20 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 21, namely, the control method for the combined operation of the wind power device and the thermoelectric device is realized.
The memory 21 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 21 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 21 may further include memory located remotely from processor 20, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 22 may be used to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 23 may include a display device such as a display screen.
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for controlling combined operation of a wind power plant and a thermoelectric plant, the method comprising:
acquiring equipment parameters of the wind power equipment and the thermoelectric equipment, and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
determining constraints of thermal power and electrical power of the thermoelectric device, constraints of electrical power of the wind power device, and constraints of a sum of electrical power of the wind power device and the thermoelectric device based on the device parameters;
determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter;
determining the electric power of the wind power equipment, the thermal power of the thermoelectric equipment and the electric power under the premise of meeting the thermal load demand of the thermoelectric equipment and the aim of realizing the maximum benefit of the combined operation system of the wind power equipment and the thermoelectric equipment on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint conditions of the electric power of the wind power equipment, the constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment and the energy storage constraint conditions of the regional heat supply network, wherein the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment are determined, the thermal load demand of the thermoelectric equipment is met, namely the sum of the thermal power of the thermoelectric equipment and the charging and discharging power of the regional heat supply network is equal to the sum of the thermal load power of the thermoelectric equipment in a preset time period, the maximum benefit maximization of the combined operation system of the wind power equipment and the thermoelectric equipment is realized Melting;
and sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also execute the related operations in the control method for the combined operation of the wind power equipment and the thermoelectric equipment provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the control device in which the wind power equipment and the thermoelectric equipment operate jointly, the included units and modules are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A control method for combined operation of wind power equipment and thermoelectric equipment is characterized in that the wind power equipment is used for generating electric power to supply power to a power grid, the thermoelectric equipment is used for generating electric power to supply power to the power grid and generating thermal power to supply heat to a regional heat supply network, the regional heat supply network consists of heat supply pipelines, and heat stored in the heat supply pipelines is used for supplying heat to the regional heat supply network, and the method comprises the following steps:
acquiring equipment parameters of the wind power equipment and the thermoelectric equipment, and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
determining constraints of thermal power and electrical power of the thermoelectric device, constraints of electrical power of the wind power device, and constraints of a sum of electrical power of the wind power device and the thermoelectric device based on the device parameters;
determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter; determining the energy storage constraint condition as a scheduling reference parameter for heat supply of the thermoelectric equipment based on the physical performance of the heat supply pipeline;
the energy storage constraint conditions of the regional heat supply network comprise:
Et＝f1(Ht)
T′S,t＝f2(ΦL,t-1,ΦS,t,ΦS,t-1)
Ht＝f3(T′S,t,ΦS,t)
Et＝f4(T′S,t,ΦS,t)
wherein, T'S,tIs the node temperature of the regional heat supply network at the moment T, and needs to satisfy T'S,min≤T′S,t≤T′S,max，T′S,minIs the lower limit of the node temperature of the regional heat supply network, T'S,maxIs the upper node temperature limit of the district heating network; phiL,t-1Is the thermal load, phi, of the thermoelectric device at time t-1S,tIs the thermal power, Φ, of the thermoelectric device at time tS,t-1Is the thermal power of the thermoelectric device at time t-1; htIs the heat charging and discharging power of the area heat supply network at time t, EtThe heat storage capacity of the regional heat supply network at the moment t needs to meet the requirement Emin≤Et≤Emax，EminIs the lower limit of the heat storage capacity of the district heating network at time t, EmaxIs the upper limit of the heat storage capacity of the regional heat supply network at time t;
determining the electric power of the wind power equipment, the thermal power of the thermoelectric equipment and the electric power under the premise of meeting the thermal load demand of the thermoelectric equipment and the aim of realizing the maximum benefit of the combined operation system of the wind power equipment and the thermoelectric equipment on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint conditions of the electric power of the wind power equipment, the constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment and the energy storage constraint conditions of the regional heat supply network, wherein the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment are determined, the thermal load demand of the thermoelectric equipment is met, namely the sum of the thermal power of the thermoelectric equipment and the charging and discharging power of the regional heat supply network is equal to the sum of the thermal load power of the thermoelectric equipment in a preset time period, the maximum benefit maximization of the combined operation system of the wind power equipment and the thermoelectric equipment is realized Melting;
and sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
2. The method of claim 1, wherein the constraints on thermal and electrical power of the thermoelectric device comprise:
Figure FDA0002536124210000021
Figure FDA0002536124210000022
Figure FDA0002536124210000023
Figure FDA0002536124210000024
wherein the content of the first and second substances,
Figure FDA0002536124210000025
is the thermal power of the thermoelectric device at time t, hmaxIs the upper thermal power limit of the thermoelectric device at time t,
Figure FDA0002536124210000026
is the electrical power of the thermoelectric device at time t, p1,p2,p3,hm,k1,k2,k3Is a device parameter of the thermoelectric device.
3. The method according to claim 2, characterized in that the constraints of the electrical power of the wind power plant comprise:
Figure FDA0002536124210000031
wherein the content of the first and second substances,
Figure FDA0002536124210000032
is the electrical power of the wind power plant at time t,
Figure FDA0002536124210000033
and the predicted maximum electric power of the wind power equipment at the time t.
4. The method of claim 3, wherein the constraints on the sum of the electrical power of the wind power plant and the thermoelectric plant comprise:
Figure FDA0002536124210000034
wherein the content of the first and second substances,
Figure FDA0002536124210000035
is the electrical power of the wind power plant at time t,
Figure FDA0002536124210000036
is the electrical power of the thermoelectric device at time t,
Figure FDA0002536124210000037
is a lower limit and an upper limit of a sum of electric powers of the wind power plant and the thermoelectric plant calculated in advance.
5. The method of claim 4, wherein the thermoelectric device achieving thermal equilibrium comprises:
Figure FDA0002536124210000038
wherein T is the preset time length,
Figure FDA0002536124210000039
is the thermal power of the thermoelectric device at time t, HtIs the heat charging and discharging power of the area heat supply network at the time t,
Figure FDA00025361242100000310
is the thermal load power of the thermoelectric device at time t.
6. The method of claim 5, wherein operating the wind power plant and the thermoelectric plant in combination to maximize the efficiency comprises:
Figure FDA00025361242100000311
wherein T is the preset time period, R is a total profit of the combined operation of the wind power equipment and the thermoelectric equipment, C is the operation cost,
Figure FDA00025361242100000312
is the electrical power of the thermoelectric device at time t,
Figure FDA00025361242100000313
is the electrical power of the wind power plant at time t,
Figure FDA00025361242100000314
is the price of the on-line electricity of the thermoelectric device at the time t,
Figure FDA00025361242100000315
is the grid-surfing electricity price of the wind power equipment at the moment t,
Figure FDA00025361242100000316
is the heat supply price of the thermoelectric device at time t, FtIs said operating cost at time t, FtThe calculation formula of (a) is as follows:
Figure FDA0002536124210000041
wherein a, b and C are respectively the running cost coefficients of the thermoelectric equipment, the value range of a is 0.01-1, the value range of b is 20-20.5, the value range of C is 600-1500, and C isvIs an operating parameter of the thermoelectric device.
7. The utility model provides a wind power equipment and thermoelectric device joint operation's controlling means, its characterized in that, wind power equipment is used for producing electric power and supplies power for the electric wire netting, thermoelectric device is used for producing electric power does the electric wire netting supplies power and produces the heat power and supply heat for regional heat supply network, regional heat supply network comprises the heat supply pipeline, the heat of storing in the heat supply pipeline is used for giving regional heat supply network heat supply, the device includes:
the acquisition module is used for acquiring equipment parameters of the wind power equipment and the thermoelectric equipment and acquiring energy storage parameters of the regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat;
a constraint condition determination module for determining constraint conditions of thermal power and electric power of the thermoelectric device, constraint conditions of electric power of the wind power device and constraint conditions of sum of electric power of the wind power device and the thermoelectric device based on the device parameters; determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter; determining the energy storage constraint condition as a scheduling reference parameter for heat supply of the thermoelectric equipment based on the physical performance of the heat supply pipeline; the energy storage constraint conditions of the regional heat supply network comprise:
Et＝f1(Ht)
T′S,t＝f2(ΦL,t-1,ΦS,t,ΦS,t-1)
Ht＝f3(T′S,t,ΦS,t)
Et＝f4(T′S,t,ΦS,t)
wherein, T'S,tIs the node temperature of the regional heat supply network at the moment T, and needs to satisfy T'S,min≤T′S,t≤T′S,max，T′S,minIs the lower limit of the node temperature of the regional heat supply network, T'S,maxIs the upper node temperature limit of the district heating network; phiL,t-1Is the thermal load, phi, of the thermoelectric device at time t-1S,tIs the thermal power, Φ, of the thermoelectric device at time tS,t-1Is the thermal power of the thermoelectric device at time t-1; htIs the heat charging and discharging power of the area heat supply network at time t, EtThe heat storage capacity of the regional heat supply network at the moment t needs to meet the requirement Emin≤Et≤Emax，EminIs the lower limit of the heat storage capacity of the district heating network at time t, EmaxIs the upper limit of the heat storage capacity of the regional heat supply network at time t;
a power determining module, configured to determine the electric power of the wind power plant, the thermal power of the thermoelectric plant and the electric power of the thermoelectric plant on the premise of meeting a constraint condition of the thermal power and the electric power of the thermoelectric plant, a constraint condition of a sum of the electric powers of the wind power plant and the thermoelectric plant, and an energy storage constraint condition of the local heat grid, on the premise of meeting a thermal load demand of the thermoelectric plant and with a goal of maximizing a benefit of the combined operation system of the wind power plant and the thermoelectric plant, wherein the thermal power and the electric power of the wind power plant and the thermoelectric plant are determined, and the maximization of the benefit of the combined operation system of the wind power plant and the thermoelectric plant, that is, the maximization of the total benefit of the combined operation of the wind power plant and the thermoelectric plant and the sum of the thermal load power of the thermoelectric plant are achieved by meeting the thermal load demand of the thermoelectric plant, that is, within a preset time period, the sum of Maximizing the difference of the line costs;
the sending module is used for sending a wind power output consumption instruction to the wind power equipment and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
8. A control device for the combined operation of a wind power plant and a thermoelectric plant, characterized in that the device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement a method of controlling the combined operation of a wind power plant and a thermoelectric plant as recited in any of claims 1-6.
9. A storage medium containing computer-executable instructions which, when executed by a computer processor, perform a method of controlling the combined operation of a wind power plant and a thermoelectric plant, the method comprising:
acquiring equipment parameters of the wind power equipment and the thermoelectric equipment, and acquiring energy storage parameters of a regional heat supply network, wherein the equipment parameters are used for expressing the working capacity of the equipment, and the energy storage parameters are used for expressing the capacity of the regional heat supply network for storing heat; the regional heat supply network consists of heat supply pipelines, and heat stored in the heat supply pipelines is used for supplying heat to the regional heat supply network;
determining constraints of thermal power and electrical power of the thermoelectric device, constraints of electrical power of the wind power device, and constraints of a sum of electrical power of the wind power device and the thermoelectric device based on the device parameters;
determining an energy storage constraint condition of the regional heat supply network based on the energy storage parameter; determining the energy storage constraint condition as a scheduling reference parameter for heat supply of the thermoelectric equipment based on the physical performance of the heat supply pipeline; the energy storage constraint conditions of the regional heat supply network comprise:
Et＝f1(Ht)
T′S,t＝f2(ΦL,t-1,ΦS,t,ΦS,t-1)
Ht＝f3(T′S,t,ΦS,t)
Et＝f4(T′S,t,ΦS,t)
wherein, T'S,tIs the node temperature of the regional heat supply network at the moment T, and needs to satisfy T'S,min≤T′S,t≤T′S,max，T′S,minIs the lower limit of the node temperature of the regional heat supply network, T'S,maxIs the upper node temperature limit of the district heating network; phiL,t-1Is the thermal load, phi, of the thermoelectric device at time t-1S,tIs the thermal power, Φ, of the thermoelectric device at time tS,t-1Is the thermal power of the thermoelectric device at time t-1; htIs the heat charging and discharging power of the area heat supply network at time t, EtThe heat storage capacity of the regional heat supply network at the moment t needs to meet the requirement Emin≤Et≤Emax，EminIs the lower limit of the heat storage capacity of the district heating network at time t, EmaxIs the upper limit of the heat storage capacity of the regional heat supply network at time t;
determining the electric power of the wind power equipment, the thermal power of the thermoelectric equipment and the electric power under the premise of meeting the thermal load demand of the thermoelectric equipment and the aim of realizing the maximum benefit of the combined operation system of the wind power equipment and the thermoelectric equipment on the premise of meeting the constraint conditions of the thermal power and the electric power of the thermoelectric equipment, the constraint conditions of the electric power of the wind power equipment, the constraint conditions of the sum of the electric power of the wind power equipment and the thermoelectric equipment and the energy storage constraint conditions of the regional heat supply network, wherein the electric power of the wind power equipment, the thermal power and the electric power of the thermoelectric equipment are determined, the thermal load demand of the thermoelectric equipment is met, namely the sum of the thermal power of the thermoelectric equipment and the charging and discharging power of the regional heat supply network is equal to the sum of the thermal load power of the thermoelectric equipment in a preset time period, the maximum benefit maximization of the combined operation system of the wind power equipment and the thermoelectric equipment is realized Melting; and sending a wind power output consumption instruction to the wind power equipment, and sending a scheduling instruction to the thermoelectric equipment, wherein the wind power output consumption instruction comprises electric power of the wind power equipment, and the scheduling instruction comprises thermal power and electric power of the thermoelectric equipment.
10. A combined wind power plant and thermal power plant operation system, comprising: the device comprises wind power equipment, thermoelectric equipment and a control device, wherein the control device adopts the device of claim 7, the wind power equipment is used for generating electric power to supply power to a power grid, and the thermoelectric equipment is used for generating electric power to supply power to the power grid and generating thermal power to supply heat to a regional heat supply network.
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