Regional peak shaving auxiliary service market pricing method and device, and electronic equipment

Abstract

The invention relates to a regional peak regulation auxiliary service market pricing method and device and electronic equipment, and relates to the field of power system automation control, and the method comprises the steps: carrying out the peak regulation cost calculation of conventional hydropower in multiple resources, and obtaining the unit peak regulation cost of the conventional hydropower, determining a multivariate resource price limit according to the difference between the unit peak regulation cost and the multivariate peak regulation resource transaction mechanism; preferential market clearing is carried out on conventional hydropower with corresponding price limitation, grading price limitation processing is carried out on the price of the power generation right replacement transaction, and grading clearing processing is carried out on the clearing price of the power generation right replacement transaction exceeding the grading price limitation; determining a peak regulation compensation price adapted to the multi-element resources according to the clearing price, and settling a peak regulation auxiliary service cost based on the peak regulation compensation price; and the peak regulation auxiliary service cost is allocated to the target power generation enterprise and / or the target energy storage power station. According to the scheme, the peak regulation cost of the system can be reduced, the optimal configuration efficiency in the resource area is improved, and better connection with the provincial peak regulation market price is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of power system automation control, in particular to a regional peak shaving auxiliary service market pricing method and device and electronic equipment. BACKGROUND

[0002] With large-scale renewable energy grid-connected and a large amount of external power feeding, the receiving end power grid peak shaving problem is increasingly prominent. In particular, during the low valley period of the regional provincial grid, the peak shaving pressure is particularly significant. In order to alleviate the peak shaving pressure, the current regional peak shaving market mainly relies on inter-provincial mutual aid transactions, that is, when the peak shaving capacity of some provinces is insufficient, support is obtained from the provinces with relatively abundant peak shaving resources through inter-provincial power trading to solve the imbalance between supply and demand during the light load period.

[0003] However, this method can alleviate the peak shaving difficulties of each province and city to some extent, but due to the fact that the current regional peak shaving market mainly relies on coal-fired units and electrochemical energy storage resources for peak shaving, the system peak shaving cost is relatively high; and the regional peak shaving market mainly uses a unified price mechanism to limit the declared price of coal-fired units and electrochemical energy storage. This "one-size-fits-all" approach fails to fully consider regional differences in wind and solar energy value, actual acceptable peak shaving prices, and other aspects. Due to differences in the development level of wind and solar energy, power system structure, load characteristics, and other aspects of each province and city, the acceptable degree of each province and city to the peak shaving price is different. The unified price mechanism cannot accurately reflect the real demand and value recognition of each province and city for peak shaving services, is difficult to connect with the provincial peak shaving market price, and cannot efficiently achieve optimal allocation of peak shaving resources within the region. SUMMARY

[0004] Therefore, the present disclosure provides a regional peak shaving auxiliary service market pricing method, device and electronic equipment, which mainly aims to solve the technical problems that the system peak shaving cost is relatively high in the prior art, and the existing unified price mechanism cannot accurately reflect the real demand and value recognition of each province and city for peak shaving services, is difficult to connect with the provincial peak shaving market price, and cannot efficiently achieve optimal allocation of peak shaving resources within the region.

[0005] According to a first aspect of the present disclosure, a regional peak shaving auxiliary service market pricing method is provided, which comprises:

[0006] The peak shaving cost of conventional hydropower in multi-element resources is calculated to obtain the unit peak shaving cost of the conventional hydropower, and the multi-element resource price limit is determined according to the unit peak shaving cost and the transaction mechanism difference of different peak shaving resources, the multi-element resource price limit comprising the upper limit of the declared price of the conventional hydropower output reduction transaction type, and the hierarchical price limit of the generation right replacement transaction of coal-fired units and electrochemical energy storage power stations;

[0007] The multi-element resources are declared according to the corresponding resource price limit, a peak shaving price is declared, the conventional hydropower is preferentially cleared in the market, the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station is processed by hierarchical price limiting, and the clearing price of the generation right replacement transaction exceeding the hierarchical price limiting is processed by hierarchical clearing, so that the clearing price of the generation right replacement transaction fluctuates within a preset price range.

[0008] The multi-element resources are determined according to the corresponding resource price limit, a peak shaving price is declared, the conventional hydropower is preferentially cleared in the market, the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station is processed by hierarchical price limiting, and the clearing price of the generation right replacement transaction exceeding the hierarchical price limiting is processed by hierarchical clearing, so that the clearing price of the generation right replacement transaction fluctuates within a preset price range.

[0009] The peak shaving auxiliary service fee is allocated to the target power generation enterprise and / or the target energy storage power station.

[0010] According to a second aspect of the present disclosure, a regional peak shaving auxiliary service market pricing device is provided, which comprises:

[0011] The calculation module is configured to calculate the peak shaving cost of the conventional hydropower in the multi-element resources to obtain the unit peak shaving cost of the conventional hydropower, and determine the multi-element resource price limit according to the unit peak shaving cost and the transaction mechanism difference of different peak shaving resources, wherein the multi-element resource price limit comprises the upper limit of the declared price of the conventional hydropower output reduction transaction type and the hierarchical price limiting of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station.

[0012] The processing module is configured to declare the peak shaving price according to the corresponding resource price limit, preferentially clear the conventional hydropower in the market, process the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station by hierarchical price limiting, and process the clearing price of the generation right replacement transaction exceeding the hierarchical price limiting by hierarchical clearing, so as to ensure that the clearing price of the generation right replacement transaction fluctuates within a preset price range.

[0013] The settlement module is configured to determine the peak shaving compensation price of the multi-element resources according to the clearing price, and settle the peak shaving auxiliary service fee based on the peak shaving compensation price, wherein the clearing price at least comprises the clearing price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station after the hierarchical clearing processing and the market clearing price of the conventional hydropower.

[0014] The allocation module is configured to allocate the peak shaving auxiliary service fee to the target power generation enterprise and / or the target energy storage power station.

[0015] According to a third aspect of the present disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of the first aspect.

[0016] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to perform the method of the first aspect.

[0017] The regional peak shaving auxiliary service market pricing method, device and electronic device provided by the present disclosure have the advantages that, compared with the prior art, the present disclosure calculates the peak shaving cost of conventional water and electricity in multiple resources, obtains the unit peak shaving cost of conventional water and electricity, and determines the multiple resource price limit according to the unit peak shaving cost and the transaction mechanism difference of different peak shaving resources. The multiple resource price limit includes the upper limit of the declared price of the conventional water and electricity output reduction transaction type, and the hierarchical limit price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station. The multiple resources are declared to have peak shaving prices according to the corresponding resource price limit, the conventional water and electricity are preferentially cleared in the market, the hierarchical limit price processing is performed on the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station, and the clearing price of the generation right replacement transaction that exceeds the hierarchical limit price is processed by hierarchical clearing to ensure that the clearing price of the generation right replacement transaction fluctuates within a preset price range. The peak shaving compensation price of the multiple resources is determined according to the clearing price, and the peak shaving auxiliary service fee is settled based on the peak shaving compensation price. The clearing price at least includes the clearing price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station after the hierarchical clearing processing and the market clearing price of the conventional water and electricity. The peak shaving auxiliary service fee is allocated to the target power generation enterprise and / or the target energy storage power station. By applying the scheme of the present disclosure, the peak shaving resource configuration is optimized and the system peak shaving cost is reduced by introducing conventional water and electricity and fully considering the peak shaving cost characteristics. Through the “classification and hierarchical limit price, classification and clearing” transaction mechanism, the regional differences of the provinces and cities in the wind and light energy value, the actual acceptable peak shaving price and the like are fully considered, and the optimization configuration efficiency of the peak shaving resources in the region is improved. In addition, through the preferential market clearing and hierarchical limit price processing, it is ensured that the peak shaving transaction price fluctuates within a preset range, and the provincial peak shaving market price is better connected. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, those skilled in the art can obtain other drawings according to these drawings without paying creative labor.

[0020] Figure 1 A flowchart of a regional peak regulation auxiliary service market pricing method provided by an embodiment of the present disclosure;

[0021] Figure 2 A flowchart of a regional peak regulation auxiliary service market pricing method provided by an embodiment of the present disclosure;

[0022] Figure 3 A water and electricity unit output characteristic curve diagram provided by an embodiment of the present disclosure;

[0023] Figure 4 A water and electricity unit output characteristic curve diagram provided by an embodiment of the present disclosure;

[0024] Figure 5 A deep peak regulation transaction change diagram of a coal-fired unit provided by an embodiment of the present disclosure;

[0025] Figure 6 A water and electricity unit output characteristic curve diagram provided by an embodiment of the present disclosure;

[0026] Figure 7 A 24h peak regulation demand diagram provided by an embodiment of the present disclosure;

[0027] Figure 8 A coal-fired unit out-clear price diagram provided by an embodiment of the present disclosure;

[0028] Figure 9 A structure diagram of a regional peak regulation auxiliary service market pricing device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings, including various details in order to understand the present disclosure. These should be considered as merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Also, in order to make the following description clear and concise, the description of known functions and structures is omitted. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0030] The regional peak shaving auxiliary service market pricing method, device and electronic equipment of the embodiments of the present disclosure are described below with reference to the accompanying drawings.

[0031] To solve the technical problems of high peak shaving cost of the prior art system, and the existing unified price mechanism cannot accurately reflect the real demand and value recognition of each province and city for peak shaving service, it is difficult to connect with the provincial peak shaving market price, and it is difficult to efficiently realize the optimal allocation of peak shaving resources in the region, the embodiments of the present disclosure provide a regional peak shaving auxiliary service market pricing method, as shown in Figure 1 The method comprises the following steps.

[0032] In step 101, the peak shaving cost of the conventional water and electricity in the multi-element resource is calculated to obtain the unit peak shaving cost of the conventional water and electricity, and the multi-element resource price limit is determined according to the unit peak shaving cost and the transaction mechanism difference of different peak shaving resources.

[0033] The multi-element resource can include conventional water and electricity, coal-fired units and electrochemical energy storage power stations.

[0034] The multi-element resource price limit can include the upper limit of the declared price of the conventional water and electricity output reduction transaction type, and the hierarchical price limit of the power generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station.

[0035] The present disclosure combines the peak shaving operation and economic characteristics of conventional water and electricity, studies the deep peak shaving definition and cost, proposes a basic peak shaving benchmark determination method and a deep peak shaving opportunity cost calculation method for conventional water and electricity, and gives the cost components when the coal-fired unit participates in deep peak shaving; according to the peak shaving cost and transaction type of different varieties, a “classified and hierarchical price limit” price mechanism is designed, which can closely combine the regional differences of the energy value of wind, light and electricity in each province and city, and finally establish a matched multi-element resource peak shaving clearing model and settlement method, which can better organize the differentiated compensation of water, coal and storage and coordinate with the provincial peak shaving market.

[0036] Specifically, the embodiments of the present disclosure provide a regional peak shaving auxiliary service market pricing mechanism considering multi-element resource cross-provincial mutual aid, as shown in Figure 2 The peak shaving auxiliary service market price mechanism architecture module is used to determine the entire peak shaving market price mechanism, and the peak shaving auxiliary service market price mechanism architecture module can include a conventional water and electricity peak shaving cost calculation module, a multi-element peak shaving resource participating market price limit module, a multi-element peak shaving resource participating market compensation price formation mechanism module, and a peak shaving fee settlement and apportionment price module.

[0037] The peak regulation cost calculation can be used for the whole market price mechanism, and the principle of "based on the peak regulation cost, reasonably compensating the peak regulation cost" should be followed. The price limit is determined according to the difference between different transaction types, a suitable market clearing model is designed, a price compensation mechanism is formed, and finally, the price guidance mechanism determines whether the peak regulation cost is guided to the power generation side or the user side, and how to allocate and settle the peak regulation cost.

[0038] In one embodiment, the conventional hydroelectric peak regulation cost calculation module can be used to divide the conventional hydroelectric basic peak regulation limit and calculate the deep peak regulation cost. The opportunity cost is used to measure the stable operation area of the hydroelectric generating set under the lower limit, and the opportunity cost is reflected in the increase of water consumption rate caused by the decrease of output power, which leads to the loss of available water power. The opportunity cost of coal-fired units is reflected in the increase of coal consumption rate caused by the output power in the deep peak regulation stage, which leads to the increase of coal consumption cost, the increase of oil combustion cost and the loss of deep regulation power.

[0039] Further, the conventional hydroelectric deep peak regulation cost calculation is as follows:

[0040] (1) The basic peak regulation limit is denoted as The output lower limit of the hydroelectric generating set in the stable operation area under the rated head H is taken; at time t, the unit output P t H The decrease to less than the reference is in deep peak regulation, and the difference between the power generation capacity at the basic peak regulation limit and the power generation capacity below the basic peak regulation limit is determined as the conventional hydroelectric deep peak regulation power E, and the calculation formula is:

[0041]

[0042] In the formula, E can represent the conventional hydroelectric deep peak regulation power, P can represent the basic peak regulation limit, and P t H P can represent the unit output;

[0043] (2) At the rated head H, the conventional hydroelectric deep peak regulation power E is converted into water consumption V, and then into the original available power generation capacity, and the calculation formula is as follows:

[0044]

[0045] In the formula, V can represent the water consumption, V can represent the water consumption rate of the hydroelectric generating set at the rated head t at time t, P can represent the basic peak regulation limit, and P t H P can represent the unit output;

[0046]

[0047] wherein E0may represent the originally available power generation amount, may represent the reference water consumption rate of the rated water head of the hydroelectric generating set, and Vmay represent the water consumption amount;

[0048] (3) The deep peak-regulation opportunity power is the available water power loss caused by the increase of the water consumption rate due to the decrease of the power generation efficiency, denoted as E J :

[0049] E J = E0- E

[0050] wherein E J may represent the deep peak-regulation opportunity power, E0may represent the originally available power generation amount, and Emay represent the deep peak-regulation power of the conventional hydroelectric power;

[0051] (4) The hydroelectric peak-regulation cost is the reduced power charge income caused by the opportunity power loss. Let the on-grid price of the hydroelectric power plant be q, then the opportunity cost M can be expressed as:

[0052] M = qE J

[0053] wherein Mmay represent the opportunity cost, qmay represent the on-grid price of the hydroelectric power plant, and E J may represent the deep peak-regulation opportunity power;

[0054] (5) The hydroelectric peak-regulation cost is converted to the unit peak-regulation cost, simply referred to as the unit peak-regulation cost S, and the calculation formula is:

[0055]

[0056] wherein S may represent the unit peak-regulation cost of the conventional hydroelectric power, Mmay represent the opportunity cost, and Emay represent the deep peak-regulation power of the conventional hydroelectric power.

[0057] Correspondingly, the peak-regulation cost of the conventional hydroelectric power in the multi-element resource is calculated to obtain the unit peak-regulation cost of the conventional hydroelectric power, which specifically can include:

[0058] determining the basic peak-regulation limit of the conventional hydroelectric power;

[0059] determining the unit peak-regulation cost of the conventional hydroelectric power according to the basic peak-regulation limit and the opportunity cost.

[0060] wherein the basic peak-regulation limit of the conventional hydroelectric power is determined; and the unit peak-regulation cost of the conventional hydroelectric power is determined according to the basic peak-regulation limit and the opportunity cost, which specifically can include:

[0061] determining the lower limit of the output of the hydroelectric generating set in the stable operation zone at the rated water head as the basic peak-regulation limit;

[0062] When the unit output is reduced to less than the basic peak regulation limit, the difference between the power generation at the basic peak regulation limit and the power generation below the basic peak regulation limit is determined as the conventional hydropower deep peak regulation power;

[0063] According to the water consumption rate of the rated head of the hydropower unit, the conventional hydropower deep peak regulation power is converted into water consumption, and the water consumption is converted into the original available power generation according to the reference water consumption rate of the rated head;

[0064] The difference between the original available power generation and the hydropower deep peak regulation power is determined as the deep peak regulation opportunity power;

[0065] The ratio of the product of the deep peak regulation opportunity power and the on-grid price to the hydropower deep peak regulation power is determined as the conventional hydropower unit peak regulation cost.

[0066] The present disclosure can divide the conventional hydropower basic peak regulation limit and measure the deep peak regulation cost, adopt the opportunity cost measurement, list the cost components, and give a specific model for measuring the conventional hydropower deep peak regulation cost. The present disclosure establishes the conventional hydropower deep peak regulation limit and cost measurement model, clarifies the water and fire peak regulation cost components, and measures the peak regulation cost under low load based on the basic peak regulation limit of the hydropower unit.

[0067] For the embodiment of the present disclosure, according to the peak regulation cost and the difference of the transaction mechanism of different peak regulation resources, the multi-resource price limit is determined. Specifically, according to the principle of "considering the power auxiliary service cost and reasonably determining the price interval" and different transaction types, the price limit problem of multi-resource participating in the peak regulation market is determined, and according to the fact that the cost of new energy consumption is different in each province and city, the graded price limit price mechanism is set for the generation right replacement transaction.

[0068] Step 102, according to the corresponding resource price limit, the multi-resource reports the peak regulation price, the conventional hydropower is preferentially cleared in the market, and the graded price limit processing is performed on the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station, and the graded clearing processing is performed on the clearing price of the generation right replacement transaction exceeding the graded price limit, to ensure that the clearing price of the generation right replacement transaction fluctuates within the preset price range.

[0069] For the embodiments of the present disclosure, the multi-element peak regulation resource market price limit module can be used to determine the upper limit of the declared price of the conventional hydropower down-regulation output, the grading price limit problem of the electric chemical energy storage and the coal-fired power generation replacement transaction. According to the principle of “considering the power auxiliary service cost and reasonably determining the price interval”, considering the difference of peak regulation cost of different resources and the difference of transaction mechanism, the conventional hydropower is the down-regulation output transaction of electric quantity return, and the upper limit of the declared price is set to ensure that the price is within a reasonable declared range. At present, the new energy consumption cost of each province and city is different. Considering the principle of “the consumption cost should not exceed the generation value, and the cost should be reasonably compensated”, the electric chemical energy storage and the coal-fired deep peak regulation transaction variety adopts the generation right replacement transaction to set the grading price limit, that is, according to the difference of the new energy on-grid price of each province and city, the number of grading and the price limit level are determined.

[0070] In one embodiment, the multi-element peak regulation resource market compensation price formation mechanism module can be used to coordinate the conventional hydropower, the electric chemical energy storage and the coal-fired unit to clear the market. The minimum total peak regulation auxiliary service cost is taken as the objective function. The conventional hydropower deep peak regulation transaction variety has low cost, and is preferentially cleared. The remaining peak regulation demand is matched with the electric chemical energy storage and the coal-fired unit to clear the market. According to whether the grading price limit is broken, the grading is cleared. Different transaction types are classified and cleared. The compensation price is formed through marginal clearing to stimulate the multi-element resource to actively participate in the peak regulation auxiliary service.

[0071] Correspondingly, the multi-element resource declares the peak regulation price according to the corresponding resource price limit, and the conventional hydropower is preferentially cleared in the market. Specifically, it can include:

[0072] In response to the fact that the peak regulation cost of the conventional hydropower is less than the preset peak regulation cost, the conventional hydropower is preferentially cleared in the market. The market clearing operation satisfies the target constraint condition. The target constraint condition at least includes the water and fire unit operation constraint, the electric chemical energy storage power station operation constraint, the electric chemical energy storage power station state of charge constraint, the peak regulation balance constraint and the network security constraint;

[0073] When the conventional hydropower cannot meet all the peak regulation demand, the remaining peak regulation demand is matched with the bid of the remaining peak regulation resource to clear the market in stages, so as to realize the minimum total peak regulation auxiliary service cost;

[0074] The objective function of the minimum total peak regulation auxiliary service cost is:

[0075]

[0076] In the formula, minF can represent the minimum total peak regulation auxiliary service cost, T can represent the total time number, can represent the total amount of winning bid of the coal-fired unit n at the x-level price of the generation right replacement transaction at time t, The total amount of winning bids of the electricity chemical energy storage power station y at the x level limit price at time t, n can represent the index of the generation right replacement transaction coal-fired unit, y can represent the index of the electricity chemical energy storage power station, m can represent the index of the water power unit of the output reduction transaction, N can represent the total number of coal-fired units, Y can represent the total number of electricity chemical energy storage power stations, M can represent the total number of water power units, The unified marginal clearing price of the generation right replacement transaction at the x level limit price at time t, The unified marginal clearing price of the output reduction transaction at time t, The total amount of winning bids of the water power unit of the output reduction transaction at time t, The on-grid price or landing price of the province or city r where the coal-fired unit n is located, The on-grid price or landing price of the province or city r where the electricity chemical energy storage power station y is located;

[0077] The water and fire unit operation constraint is:

[0078]

[0079] In the formula, The output of the coal-fired unit n at time t, The output of the water power unit m at time t; The planned output of the coal-fired unit n at time t, The planned output of the water power unit m at time t, The winning bid amount of the coal-fired unit n declared in the first segment at time t, The total amount of winning bids of the coal-fired unit n of the generation right replacement transaction at the x level limit price at time t, The total amount of winning bids of the coal-fired unit n of the generation right replacement transaction at time t, P n,max The maximum technical output of the coal-fired unit n, P m,max The maximum technical output of the water power unit m, P n,min The minimum technical output of the coal-fired unit n, P m,min The minimum technical output of the water power unit m;

[0080] The operation constraint of the electricity chemical energy storage power station is:

[0081]

[0082] In the formula, The discharge power of the electricity chemical energy storage power station y at time t, The charge power of the electricity chemical energy storage power station y at time t, The total amount of winning bids of the electricity chemical energy storage power station y at time t, The planned charge power of the electricity chemical energy storage power station y at time t, may represent the planned discharge power of the electrochemical energy storage power station y at time t, may represent the minimum charging power of the electrochemical energy storage power station y, may represent the maximum discharge power of the electrochemical energy storage power station y, u ch,t may represent the state of charge of the electrochemical energy storage power station y at time t, u dis,t may represent the state of discharge of the electrochemical energy storage power station y at time t;

[0083] The electrochemical energy storage power station state of charge constraint is:

[0084]

[0085] In the formula, may represent the state of charge of the electrochemical energy storage power station y at time t-1, may represent the state of charge of the electrochemical energy storage power station y at time t, η dis,y may represent the discharge efficiency of the electrochemical energy storage power station y, η ch,y may represent the charging efficiency of the electrochemical energy storage power station y, may represent the discharge power of the electrochemical energy storage power station y at time t, may represent the charging power of the electrochemical energy storage power station y at time t, Δt may represent a single time period time step, E ss,y may represent the system capacity of the electrochemical energy storage power station y, may represent the initial state of charge of the electrochemical energy storage power station y, may represent the final state of charge of the electrochemical energy storage power station y;

[0086] The peak regulation balance constraint is:

[0087]

[0088] In the formula, n may represent the index of the coal-fired generating unit in the generation right replacement transaction, y may represent the index of the electrochemical energy storage power station, m may represent the index of the hydropower generating unit in the output reduction transaction, N may represent the total number of coal-fired generating units, Y may represent the total number of electrochemical energy storage power stations, M may represent the total number of hydropower generating units, may represent the total amount of winning bids of the coal-fired generating unit n in the generation right replacement transaction at the x-level limit price at time t, may represent the total amount of winning bids of the electrochemical energy storage power station y at the x-level limit price at time t, may represent the total amount of winning bids of the hydropower generating unit at time t, R t may represent the amount of demand for peak regulation by the buyer at time t;

[0089] The network security constraint is:

[0090]

[0091] P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, k 0 P k (t) is the power flow value of section k at time t, n represents the index of the coal-fired generating unit of the generation right replacement transaction, y represents the index of the electrochemical energy storage power station, m represents the index of the water power generating unit of the output reduction transaction, N represents the total number of coal-fired generating units, Y represents the total number of electrochemical energy storage power stations, and M represents the total number of water power generating units, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, k,min P k (t) is the power flow value of section k at time t, k,max P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t, P k (t) is the power flow value of section k at time t.

[0092] According to the embodiment of the present disclosure, the clearing price can be formed according to the winning bid, and if the clearing price violates any level limit price, the hierarchical clearing is performed. The hierarchical clearing method of the coal-fired generating unit can be to determine the clearing price of the current level according to the highest level limit price violated, and distribute the total amount of the declared quantity whose selling bid is higher than the limit price of the current level to the peak shaving demand of the province with insufficient peak shaving according to the proportion of the peak shaving demand.

[0093] Correspondingly, the clearing price of the generation right replacement transaction exceeding the hierarchical limit price is processed by hierarchical clearing, which can specifically include:

[0094] Step 1: If the clearing price of the generation right replacement transaction exceeds any level hierarchical limit price, the clearing is processed according to the violated level hierarchical limit price as the clearing price, and the peak shaving service quantity is distributed according to the proportion of the peak shaving demand, and the level hierarchical limit price is the highest hierarchical limit price.

[0095] Step 2: If there is still a remaining peak shaving demand, the part of the peak shaving resource less than the first-level classified limit price is re-sequenced according to the declared price, and the declared price after sequencing is cleared to obtain a clearing price;

[0096] Step 3: Determine whether the clearing price exceeds the second-level classified limit price. If the clearing price exceeds the second-level classified limit price, the second-level classified limit price is used as the clearing price for clearing processing. If the clearing price does not exceed the second-level classified limit price, the clearing price is used for clearing processing. The second-level classified limit price is a limit price less than the first-level classified limit price;

[0097] Repeat the above steps 2-3 until all peak shaving demands are met.

[0098] Step 103, determining a peak shaving compensation price suitable for the multi-element resource according to the clearing price, and settling the peak shaving auxiliary service fee based on the peak shaving compensation price, wherein the clearing price at least includes the clearing price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station after the classified clearing processing and the market clearing price of the conventional hydropower.

[0099] For the embodiment of the present disclosure, the peak shaving compensation price of the conventional hydropower can be the market clearing price of the down-regulation output transaction type, and the peak shaving compensation price of the coal-fired unit and the electrochemical energy storage power station is equal to the difference between the on-grid price or landing price of the province or city where it is located and the clearing price of the generation right replacement transaction type, so as to stimulate the multi-element resource to actively participate in the peak shaving auxiliary service.

[0100] Correspondingly, determining a peak shaving compensation price suitable for the multi-element resource according to the clearing price can specifically include:

[0101] determining the market clearing price of the down-regulation output transaction type of the conventional hydropower as the peak shaving compensation price of the conventional hydropower;

[0102] determining the difference between the on-grid price or landing price of the province or city where the coal-fired unit is located and the clearing price of the generation right replacement transaction type as the peak shaving compensation price of the coal-fired unit;

[0103] determining the difference between the on-grid price or landing price of the province or city where the electrochemical energy storage power station is located and the clearing price of the generation right replacement transaction type as the peak shaving compensation price of the electrochemical energy storage power station.

[0104] For the embodiment of the present disclosure, the peak shaving fee settlement module can be used for guiding the peak shaving fee on the power generation side, and does not pass to the user side. The regional power grid and the buying and selling provincial power grid are settled, the buying and selling provincial power grid further settles the electricity fee with the power generation enterprises and the electrochemical energy storage power station that purchase and sell the peak shaving service, and the income obtained by providing the peak shaving auxiliary service is settled according to the power quantity of each multi-element resource multiplied by the compensation price. This income is shared and borne by the buyer province or city.

[0105] Correspondingly, the peak regulation auxiliary service cost is settled based on the peak regulation compensation price, and specifically can include:

[0106] The peak regulation auxiliary service cost is settled between the regional power grid and the buying and selling provincial power grid, and then the peak regulation auxiliary service cost is settled between the buying and selling provincial power grid and the target power generation enterprise and the target energy storage power station which purchase and sell the peak regulation service; or the peak regulation auxiliary service cost is settled according to the product of the peak regulation electricity quantity and the peak regulation compensation price of the multiple resources.

[0107] The present disclosure sets up a "classified and graded limit price" price mechanism according to different transaction types, reasonably sets the price limit according to the peak regulation cost of different resources and different transaction varieties, and improves the price lower limit of the original regional peak regulation market generation right replacement transaction, and considers the wind and light energy price difference of each province and city.

[0108] Step 104, apportioning the peak regulation auxiliary service cost to the target power generation enterprise and / or the target energy storage power station.

[0109] For the embodiment of the present disclosure, after step 103, the principle of "who causes, who apportions" is adopted for apportioning the peak regulation auxiliary service cost, and the power generation enterprise and the electrochemical energy storage power station which do not perform the peak regulation responsibility bear the cost, and the standard for measurement is that the power generation utilization rate of the power generation enterprise and the electrochemical energy storage power station in the peak regulation market transaction period is higher than the average power generation utilization rate, and it is considered that the power generation enterprise and the electrochemical energy storage power station do not perform the peak regulation responsibility, and the peak regulation auxiliary service cost is apportioned according to the proportion of the part of the total multiple power generation quantity (multiple power generation quantity) of the power generation enterprise and the electrochemical energy storage power station which is greater than the average power generation utilization rate of all power generation enterprises and electrochemical energy storage power stations in the province in the transaction period.

[0110] Correspondingly, the peak regulation auxiliary service cost is apportioned to the target power generation enterprise and / or the target energy storage power station, and specifically can include:

[0111] The peak regulation auxiliary service cost is apportioned to the target power generation enterprise and / or the target energy storage power station which has a power generation utilization rate higher than the average power generation utilization rate in the peak regulation market transaction period, wherein the target power generation enterprise is a power generation enterprise in the buying province which is short of peak regulation resources, and the target energy storage power station is an electrochemical energy storage power station in the discharging state;

[0112] The apportioning formula of the peak regulation auxiliary service cost is:

[0113]

[0114] In the formula, F k,l represents the peak regulation auxiliary service cost which needs to be apportioned by the power generation enterprise and the electrochemical energy storage power station in the discharging state of the buying province k which do not perform the peak regulation responsibility, represents the multiple power generation quantity of the power generation enterprise and the electrochemical energy storage power station in the discharging state of the buying province k which do not perform the peak regulation responsibility at time t, denotes the total amount of winning bids of the down-regulation output transaction hydropower unit m at time t, denotes the total amount of winning bids of the generation right replacement transaction coal-fired unit n at the x-level limit price at time t, denotes the total amount of winning bids of the generation right replacement transaction coal-fired unit n at the x-level limit price at time t, denotes the unified marginal clearing price of the generation right replacement transaction at the x-level limit price at time t, denotes the unified marginal clearing price of the down-regulation output transaction at time t, denotes the on-grid price or landing price of the province or city r where the coal-fired unit n is located, denotes the on-grid price or landing price of the province or city r where the electrochemical energy storage power station y is located.

[0115] In addition, the original regional peak shaving auxiliary service market adopts the generation right replacement transaction type, and the coal-fired unit selling the peak shaving auxiliary service and the electrochemical energy storage power station need to pay the replacement price to the power grid enterprise purchasing the peak shaving auxiliary service in the province (city), wherein, when the electrochemical energy storage power station is in the charging state, the provincial transmission and distribution price and the government fund and additional price also need to be considered. The conventional hydropower adopts the down-regulation output transaction, and there is no need to pay the replacement price, and the down-regulation peak cost is paid by the power grid enterprise purchasing the peak shaving auxiliary service in the province (city).

[0116] The present disclosure realizes the participation of multiple resources in the regional peak shaving market, and designs a "classified and hierarchical clearing" transaction mechanism. The classified clearing can maximize the use of low peak shaving cost and low carbon resources of conventional hydropower, and the hierarchical clearing can effectively avoid the peak shaving cost of wind and light consumption exceeding its own value, which is beneficial to deeply excavate the peak shaving capacity of conventional power sources and effectively reduce the system peak shaving cost.

[0117] In order to verify the effectiveness of the technical scheme, the device of the embodiment comprises one calculation example and two examples, which are as follows.

[0118] Calculation example I: calculation of deep peak shaving cost of hydropower unit

[0119] Example I: market simulation (single period)

[0120] Example II: market simulation (day)

[0121] Calculation example I:

[0122] The rated water head of a certain actual hydropower station is 117 meters, the single machine installed capacity is 600 MW, and the output characteristic curve is as follows Figure 3As shown, with the lower limit of the stable operation zone of 300MW as the basic peak-shaving benchmark and the on-grid electricity price of 0.25 yuan / (kWh), the unit peak-shaving cost of hydropower units is calculated according to the conventional hydropower peak-shaving definition and cost calculation module 102.

[0123] Depend on Figure 4 It can be seen that as the output of hydropower units decreases and they enter the unstable operating zone, the opportunity power generated by deep peak shaving and the unit peak shaving cost both show an upward trend, and there is a negative correlation with the magnitude of deep peak shaving. In particular, when the output of deep peak shaving is less than 250MW, the opportunity power and the unit peak shaving cost rise sharply. The reason is that as the output of the unit decreases, the water consumption rate shows a steep upward trend, which leads to an increase in the loss of water that can be generated, thus increasing the opportunity power and the unit peak shaving cost. This indicates that when hydropower units refer to deep peak shaving, a reasonable compensation mechanism should be formulated based on the deep peak shaving cost of hydropower units.

[0124] Example 1: The test system parameters are as follows: Provinces A and B have insufficient peak-shaving resources and submit peak-shaving requests. At a certain time, their peak-shaving demands are 250MW and 150MW respectively. Provinces C and D have abundant peak-shaving resources and organize peak-shaving requests from coal-fired power units. Province C has two 600MW coal-fired units (C1 and C2), Province D has three 300MW coal-fired units (D1, D2, and D3), and two 600MW hydropower units (E1 and E2) directly dispatched to the grid participate in peak-shaving. The on-grid price for coal-fired units is 399.88 yuan / MW. Due to differences in the on-grid price of renewable energy in Provinces A and B, the price floor is 100 yuan / MW for Level 1 and 80 yuan / MW for Level 2, respectively, resulting in two levels of lower price limits for coal-fired units. The upper price limit for hydropower is 18 yuan / MW. The price quotations for coal-fired units and directly dispatched hydropower before and after the price limits are shown in Table 1-4.

[0125]

[0126] Table 1. Segmented Price Quotations for Coal-fired Power Units in Province C

[0127]

[0128] Table 2D Provincial Coal-fired Power Plant Segment Price Quotation

[0129]

[0130] Table 3. Price Quotations for Direct-Dispatch Grid-Dispatch Hydropower

[0131]

[0132] Table 4. Price Quotations After Price Limits for Direct-Dispatch and Grid-Dispatch Hydropower

[0133] 1) Analysis of the impact of hydropower inclusion on the peak-shaving market

[0134] After the hydropower participates in the regional peak regulation market, the peak regulation cost decreases by 5822 yuan, and the system peak regulation capacity increases by 100 MW, as shown in Table 5. The reason is that after the hydropower participates, the hydropower replaces 100 MW of high-cost coal-fired units in the bid volume due to lower peak regulation cost, see Figure 5 The medium C1,1 (representing the first paragraph of unit C1 declaration) B2,3; The demand for coal-fired units decreases by 100 MW, and due to the use of generation right replacement transaction by the regional coal-fired units for deep peak regulation, the clearing price increases by 12 yuan / MW, and the purchase cost of coal peak regulation decreases by 7797 yuan.

[0135] Transaction mechanism System peak shaving capacity / MW Thermal power peak shaving cost / yuan Hydropower peak shaving cost / yuan Total peak shaving cost / yuan Hydropower not involved 450 30588 0 30588 Hydropower involved 550 22791 3500 26291

[0136] Table 5 Before and after hydropower participates in the peak regulation market

[0137] 2) Incentive and cost recovery analysis of hydropower peak regulation

[0138] Before the hydropower price limit, the hydropower declares according to the price of coal-fired units, without considering its own peak regulation cost, and the clearing price is 263 yuan / MWh, with a net income of 3207.5 yuan, which exists excessive profit situation; After the use of price limit, the hydropower considers its own benefit maximization, and no longer declares the maximum 50 MW peak regulation capacity, but declares 40 MW peak regulation capacity to obtain the maximum income from the peak regulation market, and at the same time, as shown in Table 6. Therefore, in the peak regulation market, the upper limit of the price should be set according to the peak regulation cost of the hydropower, so that the hydropower can recover the peak regulation cost while being encouraged to actively participate in the peak regulation auxiliary service, as shown in Table 6. Figure 6

[0139] Transaction mechanism Hydropower provided capacity / MW Hydropower peak shaving cost / yuan Hydropower income / yuan Hydropower not involved in price limit 100 292.5 3500 Hydropower involved in price limit 80 174 360

[0140] Table 6 Trading mechanism of hydropower participating in the peak regulation market

[0141] 3) Analysis of the impact of classification price limit mechanism

[0142] ​For example, wind power, water power is allocated 50 MW and 30 MW of peak regulation capacity in A and B provinces according to the declared proportion. When the price is not limited, the marginal clearing price of coal-fired power is 90 yuan / MWh, and the first-level limited price is 100 yuan / MWh. The cost of A province to purchase coal-fired peak regulation auxiliary services will be higher than the value of new energy power generation in its own province at this time, resulting in a negative income result, affecting the enthusiasm of new energy enterprises in A province to participate in the regional peak regulation market. After adopting classified pricing, the clearing price is adjusted to the first-level limited price of 100 yuan / MWh. At this time, the coal-fired peak regulation capacity purchased by A province is 125 MW, and the peak regulation cost decreases by 6122.75 yuan, which can ensure that new energy enterprises in A province do not incur losses due to the purchase of regional peak regulation resources. The price of the part of the peak regulation capacity purchased by B province is the first-level limited price, and the price of the remaining peak regulation capacity increases from the original 90 yuan / MWh to 96 yuan / MWh, which can benefit from it, reducing the peak regulation cost by 288.75 yuan in total, as shown in Table 7.

[0143] Transaction mechanism A province peak shaving cost / yuan B province peak shaving cost / yuan Total peak shaving cost / yuan Not limited in price 16394 9836.4 26230.4 Classification limited in price 10271.25 9547.65 19818.9

[0144] Table 7 Trading mechanism of two types of transactions participating in the peak regulation market

[0145] The system parameters of the example test II are as follows: F province has insufficient peak regulation capacity in the 1:00-4:45 period of the next day according to the day-ahead forecast, and declares a day-ahead 96-point demand curve in the regional peak regulation market, as shown in Table 7, with a price lower limit of the first-level limited price of 100 yuan / MWh; there are 39 coal-fired units in G, H, and L provinces in this region, and 2 direct-connected grid dispatching and 2 water power units participate in the peak regulation auxiliary service market bidding, with a declared price upper limit of 18 yuan / MWh, and the on-grid price of coal-fired units is 399.88 yuan / MWh. Figure 7

[0146] 1) Clearing results

[0147] The water power clearing price is always 18 yuan / MWh, providing 80 MW of peak regulation capacity for the system in each period. The purchase of high-quality peak regulation resources from water power saves the buyer province 71,961.6 yuan in purchasing coal-fired peak regulation costs, accounting for 3.27% of the total peak regulation cost, effectively reducing the system peak regulation cost. The coal-fired clearing price roughly presents an opposite trend to the peak regulation demand, as shown in Table 7. Figure 8

[0148] 2) Fee settlement allocation

[0149] F province power generation enterprises need to allocate 2,196,166.4 yuan of peak regulation fees to purchase peak regulation auxiliary services, and G, H, L provinces and East China direct-connected grid power generation enterprises obtain peak regulation fee compensation for the loss of output reduction, as shown in Table 8.

[0150] G province H province L province Directly regulated grid Cost settlement / yuan 970788.8 713431 506186.6 5760 ​​

[0151] Table 8 peak shaving cost settlement and allocation

[0152] In summary, compared with the prior art, the regional peak shaving auxiliary service market pricing method, device and electronic equipment provided by the present disclosure can obtain the unit peak shaving cost of conventional water and electricity by calculating the peak shaving cost of conventional water and electricity in multi-resource, and determine the multi-resource price limit according to the unit peak shaving cost and the difference in transaction mechanism of different peak shaving resources, wherein the multi-resource price limit includes the upper limit of the declared price of the conventional water and electricity under the output reduction transaction type, and the hierarchical limit price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station; the peak shaving price is declared for the multi-resource according to the corresponding resource price limit, the market is cleared for the conventional water and electricity in priority, and the hierarchical limit price processing is performed on the generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station, and the hierarchical clearing processing is performed on the clearing price of the generation right replacement transaction that exceeds the hierarchical limit price, so as to ensure that the clearing price of the generation right replacement transaction fluctuates within the preset price range; the corresponding peak shaving compensation price of the multi-resource is determined according to the clearing price, and the peak shaving auxiliary service cost is settled based on the peak shaving compensation price, wherein the clearing price at least includes the clearing price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station after the hierarchical clearing processing and the market clearing price of the conventional water and electricity; and the peak shaving auxiliary service cost is allocated to the target power generation enterprise and / or the target energy storage power station. By applying the scheme of the present disclosure, the peak shaving resource configuration is optimized and the system peak shaving cost is reduced by introducing conventional water and electricity and fully considering the peak shaving cost characteristics thereof; the regional differences in the value of wind and light energy, the actual acceptable peak shaving price and the like of each province and city are fully considered by the 'classification and hierarchical limit price, classification and clearing' transaction mechanism, and the optimization configuration efficiency of the peak shaving resource in the region is improved; and by the priority market clearing and hierarchical limit price processing, it is ensured that the peak shaving transaction price fluctuates within the preset range, and better connects with the provincial peak shaving market price.

[0153] Based on the specific implementation of the method shown in the above Figure 1 The present embodiment provides a regional peak shaving auxiliary service market pricing device, as shown in the above Figure 9 The device comprises a calculation module 31, a processing module 32, a settlement module 33 and an allocation module 34.

[0154] The calculation module 31 is configured to calculate the peak shaving cost of conventional water and electricity in multi-resource, obtain the unit peak shaving cost of the conventional water and electricity, and determine the multi-resource price limit according to the unit peak shaving cost and the difference in transaction mechanism of different peak shaving resources, wherein the multi-resource price limit includes the upper limit of the declared price of the conventional water and electricity under the output reduction transaction type, and the hierarchical limit price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station.

[0155] The processing module 32 is configured to declare a peak shaving price for the multi-element resource according to a corresponding resource price limit, to perform a market clearing for the conventional hydropower in priority, and to perform a graded price limiting processing on a generation right replacement transaction price of the coal-fired unit and the electrochemical energy storage power station, and to perform a graded clearing processing on a clearing price of the generation right replacement transaction exceeding the graded price limiting, so as to ensure that the clearing price of the generation right replacement transaction fluctuates within a preset price range.

[0156] The settlement module 33 is configured to determine a peak shaving compensation price of the multi-element resource according to the clearing price, to settle a peak shaving auxiliary service fee based on the peak shaving compensation price, wherein the clearing price at least includes the clearing price of the generation right replacement transaction of the coal-fired unit and the electrochemical energy storage power station after the graded clearing processing and the market clearing price of the conventional hydropower.

[0157] The apportioning module 34 is configured to apportion the peak shaving auxiliary service fee to a target power generation enterprise and / or a target energy storage power station.

[0158] In a specific application scenario, the measuring module 31 can be configured to determine a basic peak shaving limit of the conventional hydropower.

[0159] According to the basic peak shaving limit, the unit peak shaving cost of the conventional hydropower is determined in combination with an opportunity cost.

[0160] In a specific application scenario, the measuring module 31 can be configured to determine a lower limit of output of a hydropower unit stable operation area under a rated water head as the basic peak shaving limit.

[0161] When the unit output is reduced to less than the basic peak shaving limit, the difference between the power generation amount at the basic peak shaving limit and the power generation amount below the basic peak shaving limit is determined as a deep peak shaving power amount of the conventional hydropower.

[0162] According to a water consumption rate of the rated water head of the hydropower unit, the deep peak shaving power amount of the conventional hydropower is converted into a water consumption amount, and according to a reference water consumption rate of the rated water head, the water consumption amount is converted into an original available power generation amount.

[0163] A difference between the original available power generation amount and the deep peak shaving power amount is determined as a deep peak shaving opportunity power amount.

[0164] A ratio of a product of the deep peak shaving opportunity power amount and an on-grid power price to the deep peak shaving power amount of the conventional hydropower is determined as the unit peak shaving cost of the conventional hydropower.

[0165] In a specific application scenario, the processing module 32 can be configured to, in response to the peak regulation cost of the conventional hydroelectricity being less than a preset peak regulation cost, give priority to market clearing of the conventional hydroelectricity, wherein the market clearing operation satisfies a target constraint condition, and the target constraint condition at least includes a hydro-thermal unit operation constraint, an electrochemical energy storage power station operation constraint, an electrochemical energy storage power station state of charge constraint, a peak regulation balance constraint, and a network security constraint.

[0166] When the conventional hydroelectricity cannot meet all peak regulation demands, the remaining peak regulation demands are matched with the bids of the remaining peak regulation resources for hierarchical clearing to minimize a total peak regulation auxiliary service purchase cost;

[0167] The target function of the total peak regulation auxiliary service purchase cost minimization is:

[0168]

[0169] In the formula, minF represents total peak regulation auxiliary service purchase cost minimization, T represents a total number of time points, represents a total amount of winning bids of the coal-fired unit n at the x-level limit price for the generation right replacement transaction at time t, represents a total amount of winning bids of the electrochemical energy storage power station y at the x-level limit price at time t, n represents an index of the generation right replacement transaction coal-fired unit, y represents an index of the electrochemical energy storage power station, m represents an index of the output reduction transaction hydroelectric unit, N represents a total number of coal-fired units, Y represents a total number of electrochemical energy storage power stations, and M represents a total number of hydroelectric units, represents a unified marginal clearing price of the generation right replacement transaction at the x-level limit price at time t, represents a unified marginal clearing price of the output reduction transaction at time t, represents a total amount of winning bids of the output reduction transaction hydroelectric unit at time t, represents an on-grid price or landing price of the province or city r where the coal-fired unit n is located, represents an on-grid price or landing price of the province or city r where the electrochemical energy storage power station y is located;

[0170] The hydro-thermal unit operation constraint is:

[0171]

[0172] In the formula, represents an output of the coal-fired unit n at time t, represents an output of the hydroelectric unit m at time t; represents a planned output of the coal-fired unit n at time t, represents a planned output of the hydroelectric unit m at time t, represents a winning bid amount of the coal-fired unit n at time t in the lth segment, Pn (t, x) represents the total winning amount of the coal-fired unit n at the x level limit price of the generation right replacement transaction at time t, Pn (t) represents the total winning amount of the coal-fired unit n at time t, P n,max Pn represents the maximum technical output of the coal-fired unit n, m,max Pm represents the maximum technical output of the hydropower unit m, n,min Pn represents the minimum technical output of the coal-fired unit n, m,min Pm represents the minimum technical output of the hydropower unit m,

[0173] The operation constraint of the electrochemical energy storage power station is:

[0174]

[0175] In the formula, Pye (t) represents the discharging power of the electrochemical energy storage power station y at time t, Pye (t) represents the charging power of the electrochemical energy storage power station y at time t, Pye (t) represents the total winning amount of the electrochemical energy storage power station y at time t, Pye (t) represents the planned charging power of the electrochemical energy storage power station y at time t, Pye (t) represents the planned discharging power of the electrochemical energy storage power station y at time t, Pye represents the minimum charging power of the electrochemical energy storage power station y, Pye represents the maximum discharging power of the electrochemical energy storage power station y, u ch,t Pye (t) represents the state of charge of the electrochemical energy storage power station y at time t, u dis,t Pye (t) represents the discharging state of the electrochemical energy storage power station y at time t,

[0176] The state of charge constraint of the electrochemical energy storage power station is:

[0177]

[0178] In the formula, Pye (t-1) represents the state of charge of the electrochemical energy storage power station y at time t-1, Pye (t) represents the state of charge of the electrochemical energy storage power station y at time t, η dis,y Pye represents the discharging efficiency of the electrochemical energy storage power station y, η ch,y Pye represents the charging efficiency of the electrochemical energy storage power station y, Pye (t) represents the discharging power of the electrochemical energy storage power station y at time t, Pye (t) represents the charging power of the electrochemical energy storage power station y at time t, Δt represents a single time step, E ss,y Pye represents the system capacity of the electrochemical energy storage power station y, Pye represents the initial state of charge of the electrochemical energy storage power station y, Pye represents the final state of charge of the electrochemical energy storage power station y,

[0179] The peak balancing constraint is:

[0180]

[0181] wherein n represents the index of the generation right replacement transaction coal-fired unit, y represents the index of the electrochemical energy storage power station, m represents the index of the output reduction transaction hydropower unit, N represents the total number of coal-fired units, Y represents the total number of electrochemical energy storage power stations, M represents the total number of hydropower units, represents the total amount of the winning bid of the generation right replacement transaction coal-fired unit n at the x-level limit price at time t, represents the total amount of the winning bid of the electrochemical energy storage power station y at the x-level limit price at time t, represents the total amount of the winning bid of the output reduction transaction hydropower unit at time t, R t represents the demand amount of the buyer provincial peak regulation at time t;

[0182] The network security constraint is:

[0183]

[0184] wherein, is the power flow value of section k at time t, is the initial power flow value of section k, n represents the index of the generation right replacement transaction coal-fired unit, y represents the index of the electrochemical energy storage power station, m represents the index of the output reduction transaction hydropower unit, N represents the total number of coal-fired units, Y represents the total number of electrochemical energy storage power stations, M represents the total number of hydropower units, represents the total amount of the winning bid of the generation right replacement transaction coal-fired unit n at the x-level limit price at time t, represents the total amount of the winning bid of the electrochemical energy storage power station y at the x-level limit price at time t, represents the total amount of the winning bid of the output reduction transaction hydropower unit at time t, P k,min represents the minimum value of the network section k power flow, P k,max represents the maximum value of the network section k power flow, represents the sensitivity of the coal-fired unit n to section k at time t, represents the sensitivity of the electrochemical energy storage power station y to section k at time t, represents the sensitivity of the hydropower unit m to section k at time t, represents the sensitivity of the inter-provincial tie line z to section k, represents the reduction value of the winning bid amount of the coal-fired unit n on the inter-provincial tie line z at time t, represents the reduction value of the electrochemical energy storage power station y on the inter-provincial tie line z at time t, represents the reduction value of the winning bid amount of the hydropower unit m on the inter-provincial tie line z at time t.

[0185] In a specific application scenario, the processing module 32 can be configured to, if the clearing price of the generation right replacement transaction exceeds any level of the hierarchical limit price, clear the transaction according to the violated level of the hierarchical limit price as the clearing price, and allocate the peak regulation service quantity according to the peak regulation demand ratio, the level of the hierarchical limit price being the highest hierarchical limit price;

[0186] If there is still remaining peak regulation demand, the part of the declared price of the peak regulation resource that is less than the level of the hierarchical limit price is re-sequenced according to price, and the sequenced declared price is cleared to obtain a clearing price;

[0187] It is determined whether the clearing price exceeds the second level of the hierarchical limit price, if the clearing price exceeds the second level of the hierarchical limit price, the transaction is cleared according to the violated second level of the hierarchical limit price as the clearing price, if the clearing price does not exceed the second level of the hierarchical limit price, the transaction is cleared according to the clearing price, the second level of the hierarchical limit price being a limit price less than the first level of the hierarchical limit price;

[0188] The above process is repeated until all peak regulation demand is satisfied.

[0189] In a specific application scenario, the multi-element resource at least includes conventional hydropower, coal-fired units and electrochemical energy storage power stations;

[0190] The settlement module 33 can be configured to determine the market clearing price of the conventional hydropower output reduction transaction type as the peak regulation compensation price of the conventional hydropower;

[0191] The difference between the on-grid price or landing price of the province or city where the coal-fired unit is located and the clearing price of the generation right replacement transaction type is determined as the peak regulation compensation price of the coal-fired unit;

[0192] The difference between the on-grid price or landing price of the province or city where the electrochemical energy storage power station is located and the clearing price of the generation right replacement transaction type is determined as the peak regulation compensation price of the electrochemical energy storage power station.

[0193] In a specific application scenario, the settlement module 33 can be configured to perform peak regulation auxiliary service fee settlement between a regional power grid and a buying and selling provincial power grid, and then perform peak regulation auxiliary service fee settlement between the buying and selling provincial power grid and a target power generation enterprise and a target energy storage power station that purchase and sell peak regulation services; or perform peak regulation auxiliary service fee settlement according to the product of the peak regulation electricity quantity and the peak regulation compensation price of the multi-element resource respectively.

[0194] In specific application scenarios, the apportionment module 34 can be used to apportion the peak shaving auxiliary service fee to the target power generation enterprise and / or target energy storage power station whose power generation utilization rate is higher than the average power generation utilization rate during the peak shaving market trading period. The target power generation enterprise is a power generation enterprise in the buyer province with insufficient peak shaving resources, and the target energy storage power station is an electrochemical energy storage power station in the discharge state.

[0195] The formula for allocating the cost of the peak-shaving ancillary services is as follows:

[0196]

[0197] In the formula, F k,l This indicates the peak-shaving ancillary service costs that the buyer (k) needs to share with power generation companies that have failed to fulfill their peak-shaving responsibilities and electrochemical energy storage power stations that are in a state of discharge. This indicates the maximum power generation of the buyer's province (k) at time t, where the power generation enterprises that have not fulfilled their peak-shaving responsibilities and the electrochemical energy storage power stations (l) are in a discharging state. This represents the total winning bid for the hydropower unit m in the power output reduction transaction at time t. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. Let represent the total winning bids for electrochemical energy storage power station y at time t under the x-level price limit; n represents the index of coal-fired power units in the power generation rights swap transaction; y represents the index of electrochemical energy storage power stations; m represents the index of hydropower units in the power output reduction transaction; N represents the total number of coal-fired power units; Y represents the total number of electrochemical energy storage power stations; and M represents the total number of hydropower units. This represents the uniform marginal clearing price of the power generation rights swap transaction at time t under the x-level price limit. This indicates the unified marginal clearing price for the reduced output transaction at time t. This indicates the on-grid electricity price or local electricity price in the province or city where the coal-fired power unit n is located. This indicates the on-grid electricity price or local electricity price in the province or city where the electrochemical energy storage power station y is located.

[0198] It should be noted that other corresponding descriptions of the functional units involved in the regional peak-shaving ancillary service market pricing device provided in this embodiment can be found in [reference]. Figure 1 The corresponding description in [the document] will not be repeated here.

[0199] Based on the above, Figure 1 Accordingly, this embodiment also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described method. Figure 1 The method shown.

[0200] Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, etc.), and includes several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods of various implementation scenarios of the present disclosure.

[0201] Based on the method as shown in Figure 1 , and Figure 9 the virtual device embodiment, in order to achieve the above-mentioned purpose, the present embodiment also provides an electronic device, which includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to realize the method as shown in Figure 1 .

[0202] Optionally, the above-mentioned entity device can also include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface can include a display screen (Display), an input unit such as a keyboard (Keyboard), etc. The optional user interface can also include a USB interface, a card reader interface, etc. The network interface can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0203] Those skilled in the art can understand that the above-mentioned entity device structure provided by the present embodiment does not constitute a limitation on the entity device, and can include more or fewer components, or combine certain components, or different component arrangements.

[0204] The storage medium can also include an operating system, a network communication module. The operating system is a program that manages the hardware and software resources of the above-mentioned entity device, supports the running of information processing programs and other software and / or programs. The network communication module is used to realize the communication between the components inside the storage medium, and the communication with other hardware and software in the information processing entity device.

[0205] Through the description of the above embodiments, those skilled in the art can clearly understand that the present disclosure can be realized by means of software with a necessary general hardware platform, or by hardware. Compared with the prior art, the technical solutions in the present disclosure obtain the unit peak regulation cost of conventional hydropower by calculating the peak regulation cost of conventional hydropower in multi-element resources, and determine the multi-element resource price limit according to the unit peak regulation cost and the transaction mechanism difference of different peak regulation resources, the multi-element resource price limit includes the upper limit of the declared price of the conventional hydropower output reduction transaction type, and the hierarchical limit price of the generation right replacement transaction of the coal-fired generating unit and the electrochemical energy storage power station; according to the corresponding resource price limit, the peak regulation price is declared, the conventional hydropower is preferentially cleared in the market, and the hierarchical limit price processing is performed on the generation right replacement transaction price of the coal-fired generating unit and the electrochemical energy storage power station, and the clearing price of the generation right replacement transaction exceeding the hierarchical limit price is processed by hierarchical clearing to ensure that the clearing price of the generation right replacement transaction fluctuates within the preset price range; the corresponding peak regulation compensation price of the multi-element resource is determined according to the clearing price, and the peak regulation auxiliary service cost is settled based on the peak regulation compensation price, wherein the clearing price at least includes the clearing price of the generation right replacement transaction of the coal-fired generating unit and the electrochemical energy storage power station after hierarchical clearing processing and the market clearing price of the conventional hydropower; the peak regulation auxiliary service cost is apportioned to the target power generation enterprise and / or the target energy storage power station. By applying the scheme of the present disclosure, the peak regulation resource configuration is optimized and the system peak regulation cost is reduced by introducing conventional hydropower and fully considering its peak regulation cost characteristics; through the "classification and hierarchical limit price, classification and clearing" transaction mechanism, the regional differences of provinces and cities in terms of wind and light energy value, actual acceptable peak regulation price and the like are fully considered, and the optimization configuration efficiency of the peak regulation resource in the region is improved; and through the preferential market clearing and hierarchical limit price processing, it is ensured that the peak regulation transaction price fluctuates within the preset range, and better connects with the provincial peak regulation market price.

[0206] It should be noted that, in this document, the terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0207] The foregoing is merely illustrative of the various implementations of the present disclosure and the general principles thereof. Numerous modifications can be made to these illustrations, and equivalents can be substituted therefor, without departing from the scope of the present disclosure. The specific embodiments commensurate with the specific application are intended to be illustrative only and not limiting of the scope of the application as set forth in the following claims.

Claims

1. A pricing method for regional peak-shaving ancillary services, characterized in that, The method includes: Peak-shaving cost calculation is performed on conventional hydropower among the diversified resources to obtain the unit peak-shaving cost of conventional hydropower. Based on the unit peak-shaving cost and the differences in the trading mechanisms of different peak-shaving resources, the price limits of diversified resources are determined. The price limits of diversified resources include the upper limit of the declared price for the power output reduction trading type of conventional hydropower, and the tiered price limit for the power generation rights replacement trading of coal-fired units and electrochemical energy storage power stations. Based on the corresponding resource price restrictions, the peak-shaving price is declared for the diverse resources. The conventional hydropower is given priority market clearing. The power generation rights replacement transaction price of the coal-fired unit and the electrochemical energy storage power station is subject to tiered price limit processing. The clearing price of the power generation rights replacement transaction that exceeds the tiered price limit is subject to tiered clearing processing to ensure that the clearing price of the power generation rights replacement transaction fluctuates within the preset price range. The peak-shaving compensation price is determined according to the clearing price, and the peak-shaving ancillary service fee is settled based on the peak-shaving compensation price. The clearing price includes at least the clearing price of the power generation rights swap transaction of the coal-fired power unit and the electrochemical energy storage power station after the graded clearing process and the market clearing price of the conventional hydropower. The peak-shaving ancillary service costs will be allocated to the target power generation company and / or the target energy storage power station.

2. The method according to claim 1, characterized in that, The calculation of peak-shaving cost for conventional hydropower from multiple resources, to obtain the unit peak-shaving cost of the conventional hydropower, includes: Determine the basic peak-shaving limits for the aforementioned conventional hydropower; Based on the aforementioned basic peak-shaving limit, the unit peak-shaving cost of conventional hydropower is determined in conjunction with opportunity cost.

3. The method according to claim 2, characterized in that, The process involves determining the basic peak-shaving limit for conventional hydropower; and, based on the basic peak-shaving limit and opportunity cost, determining the unit peak-shaving cost of conventional hydropower, including: The lower limit of the output of the hydropower unit in the stable operating range under rated head is defined as the basic peak-shaving limit. When the unit output is reduced to less than the basic peak shaving limit, the difference between the power generation at the basic peak shaving limit and the power generation below the basic peak shaving limit is determined as the conventional hydropower deep peak shaving power. Based on the water consumption rate of the rated head of the hydropower unit, the conventional hydropower deep peak shaving power is converted into water consumption, and based on the benchmark water consumption rate of the rated head, the water consumption is converted into the original power generation. The difference between the original power generation and the hydropower deep peak-shaving power is defined as the deep peak-shaving opportunity power. The ratio of the product of the deep peak-shaving opportunity power and the on-grid electricity price to the deep peak-shaving power of hydropower is determined as the unit peak-shaving cost of conventional hydropower.

4. The method according to claim 1, characterized in that, The process of declaring peak-shaving prices for the aforementioned diverse resources based on corresponding resource price restrictions, and prioritizing market clearing for conventional hydropower, includes: In response to the fact that the peak-shaving cost of the conventional hydropower is less than the preset peak-shaving cost, the conventional hydropower is given priority market clearing. The market clearing operation satisfies target constraints, which include at least the following: hydropower unit operation constraints, electrochemical energy storage power station operation constraints, electrochemical energy storage power station state of charge constraints, peak-shaving balance constraints, and network security constraints. When conventional hydropower cannot meet all peak-shaving needs, the remaining peak-shaving needs are matched with the bids for the remaining peak-shaving resources and cleared out in a tiered manner to minimize the total cost of purchasing peak-shaving ancillary services. The objective function for minimizing the total cost of purchasing peak-shaving ancillary services is: In the formula, minF represents minimizing the total cost of purchasing peak-shaving ancillary services, and T represents the total number of time points. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. Let represent the total winning bids for electrochemical energy storage power station y at time t under the x-level price limit; n represents the index of coal-fired power units in the power generation rights swap transaction; y represents the index of electrochemical energy storage power stations; m represents the index of hydropower units in the power output reduction transaction; N represents the total number of coal-fired power units; Y represents the total number of electrochemical energy storage power stations; and M represents the total number of hydropower units. This represents the uniform marginal clearing price of the power generation rights swap transaction at time t under the x-level price limit. This indicates the unified marginal clearing price for the reduced output transaction at time t. This represents the total number of winning bids for hydropower units in the power output reduction transaction at time t. This indicates the on-grid electricity price or local electricity price in the province or city where the coal-fired power unit n is located. This indicates the on-grid electricity price or local electricity price in the province or city where the electrochemical energy storage power station y is located; The operating constraints of the hydro-thermal unit are: In the formula, This represents the output of coal-fired unit n at time t. This indicates the output m of the hydropower unit at time t; The planned output of coal-fired power unit n at time t. This indicates the planned output m of the hydropower unit at time t. This indicates the quantity of coal-fired power unit n submitted for the first phase of the bid at time t. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. P represents the total number of coal-fired power units n that won bids in the power generation rights swap transaction at time t. n,max P represents the maximum technical output of coal-fired unit n. m,max P represents the maximum technical output of the hydropower unit m. n,min P represents the minimum technical output of coal-fired power unit n. m,min This represents the minimum technical output of the hydropower unit (m). The operational constraints of the electrochemical energy storage power station are: In the formula, This represents the discharge power of the electrochemical energy storage power station y at time t. This represents the charging power of the electrochemical energy storage power station y at time t. This represents the total winning bid amount for the electrochemical energy storage power station y at time t. This represents the planned charging power of the electrochemical energy storage power station y at time t. This represents the planned discharge power of the electrochemical energy storage power station y at time t. This represents the minimum charging power of the electrochemical energy storage power station y. u represents the maximum discharge power of the electrochemical energy storage power station y. ch,t u represents the charging state of the electrochemical energy storage power station y at time t. dis,t This indicates the discharge state of the electrochemical energy storage power station y at time t; The state of charge constraint of the electrochemical energy storage power station is: In the formula, This represents the charge state of the electrochemical energy storage power station y at time t-1. η represents the charge state of the electrochemical energy storage power station y at time t. dis,y η represents the discharge efficiency of the electrochemical energy storage power station y. ch,y This represents the charging efficiency of the electrochemical energy storage power station y. This represents the discharge power of the electrochemical energy storage power station y at time t. E represents the charging power of the electrochemical energy storage power station y at time t, where Δt represents the time step of a single time period. ss,y This indicates the capacity of the electrochemical energy storage power station system y. This represents the initial state of charge of the electrochemical energy storage power station y. This represents the final state of charge of the electrochemical energy storage power station y; The peak-shaving balance constraint is: In the formula, n represents the index of coal-fired power units in the power generation rights swap transaction, y represents the index of electrochemical energy storage power stations, m represents the index of hydropower units in the power output reduction transaction, N represents the total number of coal-fired power units, Y represents the total number of electrochemical energy storage power stations, and M represents the total number of power units. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. This represents the total winning bid amount for electrochemical energy storage power station y at time t under the x-level price limit. R represents the total number of hydropower units won in the power output reduction transaction at time t. t This represents the peak-shaving demand of the buyer province at time t; The network security constraints are as follows: In the formula, Let be the power flow value at section k at time t. Let n be the initial tidal current value at section k, y be the index of the coal-fired power unit in the power generation rights swap transaction, m be the index of the hydropower unit in the output reduction transaction, N be the total number of coal-fired power units, Y be the total number of electrochemical energy storage power stations, and M be the total number of hydropower units. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. This represents the total winning bid amount for electrochemical energy storage power station y at time t under the x-level price limit. P represents the total winning bids for hydropower units in the power output reduction transaction at time t. k,min P represents the minimum power flow value at network section k. k,max This represents the maximum power flow value at network section k. This represents the sensitivity of coal-fired unit n to section k at time t. The value represents the sensitivity of the electrochemical energy storage power station y to the cross section k at time t. This represents the sensitivity of the hydropower unit m to the cross section k at time t. This indicates the sensitivity of the inter-provincial connecting line z to section k. This represents the decrease in the amount of coal-fired unit n in the inter-provincial connecting line z at time t. This represents the decrease in the distance of the electrochemical energy storage power station y across the inter-provincial transmission line z at time t. This represents the decrease in the amount of the hydropower unit m at time t along the inter-provincial connecting line z.

5. The method according to claim 1, characterized in that, The tiered clearing process for the clearing price of power generation rights swap transactions exceeding the tiered price limit includes: If the clearing price of the power generation rights swap transaction exceeds any of the tiered price limits, the clearing process will be carried out according to the violated tiered price limit, and the peak-shaving service volume will be allocated according to the peak-shaving demand ratio. The tiered price limit is the highest tiered price limit. If there is still remaining peak-shaving demand, the bid prices of peak-shaving resources that are less than the first-level price limit will be re-sorted, and the sorted bid prices will be cleared to obtain the clearing price. Determine whether the clearing price exceeds the secondary tier price limit. If the clearing price exceeds the secondary tier price limit, then the clearing process is carried out at the violated secondary tier price limit. If the clearing price does not exceed the secondary tier price limit, then the clearing process is carried out at the clearing price. The secondary tier price limit is a price limit that is lower than the primary tier price limit. Repeat the above process until all peak-shaving needs are met.

6. The method according to claim 1, characterized in that, The determination of the peak-shaving compensation price appropriate to the diversified resources based on the clearing price includes: The market clearing price for the conventional hydropower output reduction transaction type is determined as the peak-shaving compensation price for the conventional hydropower. The difference between the on-grid electricity price or local electricity price in the province or city where the coal-fired power unit is located and the clearing price of the power generation rights swap transaction type is determined as the peak-shaving compensation price of the coal-fired power unit. The difference between the on-grid electricity price or landed electricity price in the province or city where the electrochemical energy storage power station is located and the clearing price of the power generation rights swap transaction type is determined as the peak-shaving compensation price of the electrochemical energy storage power station.

7. The method according to claim 1, characterized in that, The settlement of peak-shaving ancillary service fees based on the peak-shaving compensation price includes: The settlement of peak-shaving ancillary service fees is conducted between the regional power grid and the provincial power grid, and then between the provincial power grid and the target power generation company and target energy storage power station that purchased or sold the peak-shaving services; or, the settlement of peak-shaving ancillary service fees is conducted based on the product of the peak-shaving electricity volume and the peak-shaving compensation price corresponding to the various resources.

8. The method according to claim 1 or 7, characterized in that, The allocation of peak-shaving ancillary service costs to target power generation companies and / or target energy storage power stations includes: The peak-shaving ancillary service fees are allocated to target power generation enterprises and / or target energy storage power stations whose power generation utilization rate is higher than the average power generation utilization rate during the peak-shaving market trading period. The target power generation enterprises are power generation enterprises in buyer provinces with insufficient peak-shaving resources, and the target energy storage power stations are electrochemical energy storage power stations in a discharge state. The formula for allocating the cost of the peak-shaving ancillary services is as follows: In the formula, F k,l This indicates the peak-shaving ancillary service costs that the buyer (k) needs to share with power generation companies that have failed to fulfill their peak-shaving responsibilities and electrochemical energy storage power stations that are in a state of discharge. This indicates the maximum power generation of the buyer's province (k) at time t, where the power generation enterprises that have not fulfilled their peak-shaving responsibilities and the electrochemical energy storage power stations (l) are in a discharging state. This represents the total winning bid for the hydropower unit m in the power output reduction transaction at time t. This represents the total winning bid amount for coal-fired power unit n in the power generation rights swap transaction at time t, within the x-level price limit. Let represent the total winning bids for electrochemical energy storage power station y at time t under the x-level price limit; n represents the index of coal-fired power units in the power generation rights swap transaction; y represents the index of electrochemical energy storage power stations; m represents the index of hydropower units in the power output reduction transaction; N represents the total number of coal-fired power units; Y represents the total number of electrochemical energy storage power stations; and M represents the total number of hydropower units. This represents the uniform marginal clearing price of the power generation rights swap transaction at time t under the x-level price limit. This indicates the unified marginal clearing price for the reduced output transaction at time t. This indicates the on-grid electricity price or local electricity price in the province or city where the coal-fired power unit n is located. This indicates the on-grid electricity price or local electricity price in the province or city where the electrochemical energy storage power station y is located.

9. A regional peak-shaving ancillary service market pricing device, characterized in that, include: The calculation module is used to calculate the peak-shaving cost of conventional hydropower among the diverse resources, obtain the unit peak-shaving cost of the conventional hydropower, and determine the price limit of the diverse resources based on the unit peak-shaving cost and the differences in the trading mechanisms of different peak-shaving resources. The price limit of the diverse resources includes the upper limit of the declared price for the power output reduction trading type of conventional hydropower, and the tiered price limit for the power generation rights replacement trading of coal-fired units and electrochemical energy storage power stations. The processing module is used to declare peak-shaving prices for the diverse resources according to the corresponding resource price limits, prioritize market clearing for the conventional hydropower, and perform tiered price limit processing for the power generation rights replacement transaction prices of the coal-fired power units and the electrochemical energy storage power stations. The clearing price of power generation rights replacement transactions that exceed the tiered price limit is also subject to tiered clearing processing to ensure that the clearing price of the power generation rights replacement transactions fluctuates within a preset price range. The settlement module is used to determine the appropriate peak-shaving compensation price for the diversified resources based on the clearing price, and to settle the peak-shaving ancillary service fees based on the peak-shaving compensation price. The clearing price includes at least the clearing price of the power generation rights swap transaction of the coal-fired power unit and the electrochemical energy storage power station after the tiered clearing process and the market clearing price of the conventional hydropower. The cost-sharing module is used to allocate the peak-shaving ancillary service costs to the target power generation company and / or the target energy storage power station.

10. An electronic device, comprising: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-8.

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