CN113972657A - Load adjustable control method based on electric heat storage - Google Patents
Load adjustable control method based on electric heat storage Download PDFInfo
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- CN113972657A CN113972657A CN202111347117.3A CN202111347117A CN113972657A CN 113972657 A CN113972657 A CN 113972657A CN 202111347117 A CN202111347117 A CN 202111347117A CN 113972657 A CN113972657 A CN 113972657A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0075—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source according to economic or energy efficiency considerations, e.g. economic dispatch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
- H02J3/144—Demand-response operation of the power transmission or distribution network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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Abstract
The invention discloses a load adjustable control method based on electric heat storage, which comprises the steps of predetermining three load adjustable modes of the electric heat storage, selecting an electric heat storage control mode in which the electric heat storage participates according to the current power grid state, and carrying out input and cut control on the electric heat storage according to the selected electric heat storage control mode, wherein the three load adjustable modes of the electric heat storage comprise a frequency modulation load adjustable mode, a scheduling load adjustable mode and a deep load adjustable mode. The invention can assist thermal power to participate in load frequency modulation and peak regulation, realizes load regulation of the electric heat storage equipment, meets the requirement of frequency modulation and peak regulation of the power grid, maintains the deviation of the frequency of the power grid system and the standard frequency within an allowable range to be stable, and ensures that the power grid operates safely.
Description
Technical Field
The invention relates to the technical field of electric power system dispatching automation, in particular to a load adjustable control method based on electric heat storage.
Background
With the rapid increase of the scale of the power grid in China and the addition of various new energy sources, the regulation and control working pressure of load scheduling personnel is higher and higher, and the mode mainly depending on manual load scheduling is difficult to adapt gradually. The power grid containing large-scale wind power has the characteristics of load regulation, frequency control, voltage control, maximum electric heat storage effect exertion and other links, and a traditional dispatching automation system cannot completely adapt to the load dispatching operation requirement.
In some areas, the power grid mainly uses thermal power, the flexibility of the power grid is poor, and during the heating period in winter, the downward peak regulation capacity of a cogeneration unit is insufficient, so that large-scale wind abandoning is caused in the low ebb period at night. The electric heat storage is one of effective means for solving the problem of wind abandon by participating in load adjustment, but the current literature and products do not specifically research on the load adjustment of the electric heat storage.
Disclosure of Invention
The invention provides a load adjustable control method based on electric heat storage aiming at the technical problems of the electric heat storage load adjustable technology, which comprises the steps of predetermining three control modes of electric heat storage load, selecting an electric heat storage control mode in which the electric heat storage participates according to the current power grid state, and carrying out input and cut control on the electric heat storage according to the selected electric heat storage control mode, wherein the three control modes of the electric heat storage comprise a frequency modulation load adjustable mode, a scheduling load adjustable mode and a deep load adjustable mode.
Further, the frequency modulation load adjustable mode comprises the following steps: acquiring power generation sequence positions of power supplies where the electric heat storage is located; judging whether each power supply standby before the electricity and heat storage power generation sequence meets the requirement of the load regulation quantity of the whole network or not; if all power supplies before the electric heat storage power generation sequence cannot meet the requirement of the whole network, the electric heat storage participates in load regulation; and (4) inputting or cutting off the electric heat storage according to the adjustment quantity of the whole network.
Further, the scheduling load adjustable mode comprises the following steps: acquiring target electric quantity; comparing the current active power with the target value, and if the active power is smaller than the target value, inputting electricity for heat storage; if the active power is larger than the target value, removing the electric heat accumulation; and if the active power is equal to the target electric quantity, stopping inputting or cutting off the electric heat accumulation.
Further, the specific steps of the deep load adjustment mode include: judging whether the whole network load adjustable area is deeply adjusted, and if so, acquiring quotations of each power plant according to the limit value of the gear where the whole network load adjustable area is deeply adjusted; judging whether the thermal power reserve is sufficient or not according to quoted price, and if the thermal power reserve is sufficient, not performing electric heat storage regulation; and if the thermal power is insufficient, putting in or cutting off the electric heat storage according to a preset switching strategy to finish the electric heat storage load regulation.
Further, the switching strategy comprises:
when the thermal power is at a specific fixed value, judging whether the condition of formula (1) is met, and if the condition of formula (1) is met, determining the combination of the input electric heat storage, wherein formula (1) is expressed as follows:
wherein p isdownAnd i refers to the quotation gear i of the thermal storage power plant and all units before the quotation gear i are standby and are expressed as follows:
wherein P isG,KActual capacity of the K-th quotation unit, Lmin,kA lower control limit, L, of the k-th quotation unit under the set of fixed valuesdownSet minimum hold-down value; Δ p is the total turndown power value and R is the set ACE emergency zone limit.
Further, if the condition of the formula (1) is satisfied, it is judged that the electric heat storage combination can be put into use by the formula (2),
wherein P isdes,iThe total target output P of the quotation gear i and all previous units of the thermal storage power plantN,iFor the installed capacity, eta of the quotation gear i and all the previous units of the thermal storage power plantt,minFor minimum load factor, eta, at different set valuest,maxFor the maximum load rate at different setpoints: pheatFor a sequence of combinations of adjustable load capacities of the individual electric heat storage units, when the adjustable load capacity of a combination of certain electric heat storage units does not satisfy formula (2), from the sequence of combinations PheatThe combination is deleted.
Further, the switching strategy comprises:
judging whether the condition of the formula (3) is satisfied, if the condition of the formula (3) is satisfied, determining that the electric-heat storage combination can be cut off,
wherein p isupAnd i refers to the state of the thermal storage power plant at the quotation gear i and all the units behind the quotation gear i for standby, and is represented as follows:
PG,kactual capacity of the K-th quotation unit, Lmax,kThe upper control limit of the k-th quotation unit under the set of fixed values, R is the total quotation gear number, LupFor the set minimum up reserve value, Δ P is the total up power value and R is the set ACE emergency zone limit.
Further, if the condition of the formula (3) is satisfied, the electric-heat-accumulative composition that can be cut is determined by the formula (4),
wherein P isdes,iThe total target output P of all units at and after the quotation gear i of the thermal storage power plantN,iFor the installed capacity, P, of all units at and after the quotation gear i of the thermal storage power plantheatThe adjustable load capacity combination sequence of each electric heat storage unit; when the combined adjustable capacity of a certain electric heat storage unit does not satisfy the formula (4) from the combined sequence PheatThe combination is deleted.
The invention also provides a terminal, which comprises a processor and a storage medium; the storage medium is used for storing instructions; the processor is configured to operate in accordance with the instructions to perform the steps of the method according to the invention.
The invention also proposes a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to the invention.
The invention has the following beneficial technical effects:
the load adjustable control method based on electric heat storage provided by the invention has three load regulation and control modes: the frequency modulation load control mode with the participation of the electric heat accumulation, the manual load control mode with the participation of the electric heat accumulation and the deep load modulation control mode with the participation of the electric heat accumulation can assist the thermal power to participate in the load frequency modulation and peak modulation so as to meet the requirement of the load frequency modulation and peak modulation of the power grid and ensure that the power grid operates safely.
Drawings
Fig. 1 is a schematic flow chart of a load adjustable control method based on electric heat storage according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of three control modes of a load adjustable control method based on electric heat storage according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a frequency modulation load control mode with electric heat accumulation.
Fig. 4 is a schematic flow chart of a scheduling load control mode with participation of electric heat storage according to an embodiment of the present invention.
Fig. 5 is a flow chart of a deep regulation load control mode with participation of electric heat storage in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
Automatic Generation Control (AGC) maintains system frequency and/or tie line exchange power within a certain target range by automatically adjusting the active output of the generator set in a dispatch load area.
In the prior art, a load area is divided into a stable area, an emergency area and an accident area according to the magnitudes of the ACE and frequency deviation and a set threshold value. When the frequency is in an emergency area or an accident area, different power generation sequence positions are obtained, and when the standby of other power supplies is insufficient, the electric heat storage participates in the power grid regulation, so that the power grid can regulate the load quickly and safely.
The invention provides a load adjustable control method based on electric heat storage, which mainly comprises the following three steps: the system comprises an electric heat storage participation frequency modulation load control mode, an electric heat storage participation scheduling load control mode and an electric heat storage participation deep modulation load control mode. The present invention will be described in detail below.
Example 1: a load adjustable control method based on electric heat accumulation is disclosed, as shown in figure 1, and comprises the following steps:
three control modes of the electric heat accumulation are predetermined. When the power grid needs to be subjected to second-level ultra-fast regulation and control, a frequency modulation load control mode is selected; when the power grid needs to be rapidly regulated and controlled in a minute level, a scheduling load control mode with participation of electric heat storage is selected; and when the power grid needs to perform small-level medium-speed regulation and control, selecting a deep load regulation control mode in which the electric heat storage participates.
And performing input and cut-off control on the electric heat storage according to the selected electric heat storage load adjustable mode, wherein the three control modes of the electric heat storage comprise a frequency modulation load adjustable mode, a scheduling load adjustable mode and a deep modulation load adjustable mode. Fig. 2 is a schematic diagram of three control modes of a load adjustable control method based on electric heat storage according to an embodiment of the present invention;
the frequency modulated load modulated mode in which mode-electrical thermal storage participates is shown in fig. 3.
Because the electric heat storage is generally used in the power grid in the heating period and the output regulation speed is slow, the regulation function of the electric heat storage is started only when the system enters an emergency area, the electric heat storage is used as a load-adjustable mode to participate in the frequency modulation of the power grid when the power supplies such as thermal power, new energy and the like are insufficient in the emergency area, and the adjustment quantity demand of the system is counted in the switching state of the electric heat storage.
The frequency modulation load adjustable mode is used for carrying out zone control on electric heat accumulation according to the emergency degree of power grid frequency adjustment. When the frequency is in a stable region, acquiring an electric heat accumulation power generation sequence, wherein the electric heat accumulation does not participate in load adjustment in general; when the frequency enters an emergency area and the standby power supply of the thermal power station is insufficient, the electric heat storage participation load is adjustable; when the frequency enters an accident region, the frequency modulation load is adjustable by the electric heat accumulation.
Mode two electric heat storage participation scheduling load adjustable mode as shown in fig. 4, the manual load adjustable mode is that a dispatcher manually inputs a target value of an electric heat storage device, and the on-off state of the electric heat storage device is manually determined through comparison of the current power grid adjustment requirement and the electric heat storage standby.
Mode three deep load modulation modes with electric heat storage participation are shown in fig. 5.
The deep load regulation mode is to judge whether the current time enters deep regulation according to the current power grid state. When the electric heat storage enters deep adjustment, the quotation of each thermal power generating unit is obtained according to the current several sets of limit values, the load adjustable strategy of the thermal power generating unit is determined according to the quotation, and when the thermal power generating unit cannot meet the load adjustment quantity of the whole network, the electric heat storage is deeply adjusted through power on and off heat storage, so that the whole network is quickly recovered.
Example 2:
on the basis of the embodiment 1, the specific control process of the deep load regulation mode is described in detail below. The method comprises the following specific steps:
the method comprises the following steps: judging a frequency area: whether the whole network is in deep tone is judged, and if the whole network is in deep tone, the quotation of each power plant is obtained according to the number-th gear limit value of the whole network.
Step two: judging whether the thermal power reserve is sufficient, if so, not needing to adjust the electric heat storage load; if the thermal power is not sufficient for standby, the electrical heat storage load adjustment is required.
Step three: switching electric heat storage according to whether the thermal power is sufficient or not, and specifically comprising the following steps: and (3) investment strategy: when the thermal power is at a certain set of fixed value, if the conditions are met:
wherein p isdownAnd i refers to the quotation gear i of the thermal storage power plant and all units before the quotation gear i are standby and are expressed as follows:
wherein P isG,KActual capacity of the K-th quotation unit, Lmin,kThe lower limit of load control, L, of the k-th quotation unit under the set of fixed valuesdownSet minimum hold-down value; delta P is the total down-regulation power value, R is the set ACE emergency zone limit value, i is the quotation gear, K is the current gear
When the formula (1) is satisfied, the electric heat storage combination P can be put intoheaThe determination is as follows:
wherein P isdes,iThe total target output P of the quotation gear i and all previous units of the thermal storage power plantN,iFor the installed capacity, eta of the quotation gear i and all the previous units of the thermal storage power plantt,minFor minimum load factor, eta, at different set valuest,maxFor the maximum load rate at different setpoints: pheatFor a sequence of combinations of adjustable load capacities of the individual electric heat storage units, when the adjustable load capacity of a combination of certain electric heat storage units does not satisfy formula (2), from the sequence of combinations PheatThe combination is deleted.
When the thermal power is at a certain set of fixed value, if the conditions are met:
wherein p isupAnd i refers to the state of the thermal storage power plant at the quotation gear i and all the units behind the quotation gear i for standby, and is represented as follows:
PG,kquotation machine for k-th fileActual force of the group, Lmax,kFor the control upper limit, p, of the k-th quotation unit under the set of fixed valuesupFor the set minimum up reserve value, Δ P is the total up power value and R is the set ACE emergency zone limit.
If the condition of the formula (3) is satisfied, the electric heat storage combination can be cut off by using the formula (4),
wherein P isdes,iThe total target output P of all units at and after the quotation gear i of the thermal storage power plantN,iFor the installed capacity, P, of all units at and after the quotation gear i of the thermal storage power plantheatThe adjustable load capacity combination sequence of each electric heat storage unit; when a certain combined capacity does not satisfy formula (4), the slave sequence PheatThe combination is deleted.
Example 3: on the basis of embodiment 1 or embodiment 2, a specific control process of a scheduling load adjustment mode in the load adjustable control method based on electric heat storage (as shown in fig. 2) provided by this embodiment is described in detail below, where the scheduling load adjustment mode includes the specific steps of:
the method comprises the following steps: inputting a target electric quantity;
step two: comparing the current active and target electric quantity values:
if the active power is smaller than the target electric quantity value, inputting electricity for heat storage;
if the active power is greater than the target electric quantity value, removing the electricity for heat storage;
and if the active power is equal to the target electric quantity value, stopping charging/cutting off the electricity to store heat.
The specific control process of the frequency load adjustment mode (i.e., frequency modulation load mode) is described in detail below. The frequency modulation load mode comprises the following specific steps:
the method comprises the following steps: acquiring power generation sequence positions of power supplies where the electric heat storage is located;
step two: judging whether each power supply standby before the electricity and heat storage power generation sequence meets the requirement of the whole network regulating quantity;
step three: if all power supplies before the electric heat storage power generation sequence cannot meet the requirement of the whole network, the electric heat storage participates in load regulation;
step four: and charging/cutting electricity according to the adjustment amount of the whole network for heat storage.
The load adjustable control method based on electric heat storage can realize that auxiliary thermal power participates in load frequency modulation and peak shaving according to the electric heat storage so as to meet the requirement of frequency modulation and peak shaving of a power grid and ensure that the power grid operates safely.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
While the best mode for carrying out the invention has been described in detail and illustrated in the accompanying drawings, it is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the invention should be determined by the appended claims and any changes or modifications which fall within the true spirit and scope of the invention should be construed as broadly described herein.
Claims (10)
1. The load adjustable control method based on the electric heat storage is characterized in that three control modes of the electric heat storage load are predetermined, an electric heat storage control mode in which the electric heat storage participates is selected according to the current power grid state, and the electric heat storage is subjected to input and cut control according to the selected electric heat storage control mode, wherein the three control modes of the electric heat storage comprise a frequency modulation load adjustable mode, a scheduling load adjustable mode and a deep load adjustment mode.
2. The method of claim 1, wherein the frequency modulated load tunable mode comprises the steps of: acquiring power generation sequence positions of power supplies where the electric heat storage is located; judging whether each power supply standby before the electricity and heat storage power generation sequence meets the requirement of the load regulation quantity of the whole network or not; if all power supplies before the electric heat storage power generation sequence cannot meet the requirement of the whole network, the electric heat storage participates in load regulation; and (4) inputting or cutting off the electric heat storage according to the adjustment quantity of the whole network.
3. The method of claim 1, wherein the scheduling load adjustable mode comprises the steps of: acquiring target electric quantity; comparing the current active power with the target value, and if the active power is smaller than the target value, inputting electricity for heat storage; if the active power is larger than the target value, removing the electric heat accumulation; and if the active power is equal to the target electric quantity, stopping inputting or cutting off the electric heat accumulation.
4. The method according to claim 1, wherein the deep load tunable mode comprises the specific steps of: judging whether the whole network load adjustable area is deeply adjusted, and if so, acquiring quotations of each power plant according to the limit value of the gear where the whole network load adjustable area is deeply adjusted; judging whether the thermal power reserve is sufficient or not according to quoted price, and if the thermal power reserve is sufficient, not performing electric heat storage regulation; and if the thermal power is insufficient, putting in or cutting off the electric heat storage according to a preset switching strategy to finish the electric heat storage load regulation.
5. The method of claim 4, wherein the switching strategy comprises:
when the thermal power is at a specific fixed value, judging whether the condition of formula (1) is met, and if the condition of formula (1) is met, determining the combination of the input electric heat storage, wherein formula (1) is expressed as follows:
wherein p isdownAnd i refers to the quotation gear i of the thermal storage power plant and all units before the quotation gear i are standby and are expressed as follows:
wherein P isG，KActual capacity of the K-th quotation unit, Lmin，kA lower control limit, L, of the k-th quotation unit under the set of fixed valuesdownSet minimum hold-down value; Δ p is the total turndown power value and R is the set ACE emergency zone limit.
6. The method according to claim 5, wherein if the condition of formula (1) is satisfied, it is determined that the electric heat storage combination can be put into use by formula (2),
wherein P isdes，iThe total target output P of the quotation gear i and all previous units of the thermal storage power plantN，iFor the installed capacity, eta of the quotation gear i and all the previous units of the thermal storage power plantt，minFor minimum load factor, eta, at different set valuest，maxFor the maximum load rate at different setpoints: pheatFor a sequence of combinations of adjustable load capacities of the individual electric heat storage units, when the adjustable load capacity of a combination of certain electric heat storage units does not satisfy formula (2), from the sequence of combinations PheatThe combination is deleted.
7. The method of claim 4, wherein the switching strategy comprises:
judging whether the condition of the formula (3) is satisfied, if the condition of the formula (3) is satisfied, determining that the electrical heat accumulation can be cut off,
wherein p isupAnd i refers to the state of the thermal storage power plant at the quotation gear i and all the units behind the quotation gear i for standby, and is represented as follows:
PG，kactual capacity of the K-th quotation unit, Lmax，kThe upper control limit of the k-th quotation unit under the set of fixed values, R is the total quotation gear number, LupFor the set minimum up reserve value, Δ P is the total up power value and R is the set ACE emergency zone limit.
8. The method according to claim 7, characterized in that if the condition of formula (3) is satisfied, the cut electrical storage combination is determined using formula (4),
wherein P isdes，iThe total target output P of all units at and after the quotation gear i of the thermal storage power plantN，iFor the installed capacity, P, of all units at and after the quotation gear i of the thermal storage power plantheatThe adjustable load capacity combination sequence of each electric heat storage unit; when the combined adjustable capacity of a certain electric heat storage unit does not satisfy the formula (4) from the combined sequence PheatThe combination is deleted.
9. A terminal comprising a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is configured to operate in accordance with the instructions to perform the steps of the method according to any one of claims 1 to 8.
10. Computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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