Comprehensive evaluation method and system considering participation of industrial load in power grid regulation and control

Abstract

The invention relates to the technical field of power dispatching, in particular to a comprehensive evaluation method and system considering industrial load participation in power grid regulation and control, and the method comprises the steps: constructing an evaluation index system of industrial load participation in power grid regulation and control, which comprises a potential evaluation index and an effect evaluation index; collecting power grid data, calculating each index score of the evaluation index system in which the industrial load participates in power grid regulation and control, and performing normalization processing; calculating the weight of each index in the evaluation index system in which the industrial load participates in power grid regulation and control; and calculating a total score of industrial load regulation and control performance according to the normalized score of each index and the weight thereof, and evaluating the participation of the industrial load in power grid regulation and control. According to the method, the interaction enthusiasm of the industrial load and the power grid can be improved, a reliable basis is provided for potential prediction before the industrial load participates in power grid regulation and control and establishment of a reward revenue mechanism after regulation and control, and an important reference is provided for power grid dispatching and marketing departments to specify corresponding regulation and control strategies.

Description

Technical Field

[0001] The present invention relates to the technical field of power dispatching, and in particular to a comprehensive evaluation method, system and computer-readable storage medium considering industrial loads participating in power grid regulation. Background Art

[0002] Due to the multiple safety issues brought about by the high proportion of new energy grid connection, the characteristic structure of each link of the new power system "source, grid, load and storage" will change. In view of the system operation risks that may be caused by the intermittent and uncertain output of new energy power sources, the power system needs to have the ability to regulate a large number of flexible resources in real time. Traditional load-side demand response mainly includes price-based and incentive-based types, which control the load by changing the user's electricity habits and behaviors, but this method lacks flexibility and timeliness. The rapid demand response proposed by some scholars can increase the time scale of demand response to seconds. In order to improve the safety and economic operation capacity of the power grid, some scholars have proposed dynamic demand response, taking into account the dynamic change process of load-side resources and power grids, and taking load-side adjustable resources as the main body of power grid demand response, breaking through the traditional power system dispatching mode. Dynamic demand response mainly includes electric vehicles, air conditioners, industrial loads, smart buildings, etc. Among them, industrial load regulation has great development potential and there is currently little research in this field.

[0003] Industrial loads have the characteristics of large capacity, fast regulation speed and low transformation cost, and have great potential for regulation and development. Important production equipment in various high-energy-consuming industrial loads (such as electrolyzers, ore-heat furnaces and reduction furnaces, etc.) have similar energy storage characteristics. By installing additional control terminals, they can participate in the frequency and peak regulation of the power grid in a short time, which plays an important role in the safe and stable operation of the power grid under the new power system and the consumption of new energy.

[0004] At present, some scholars have conducted research on the comprehensive performance evaluation of industrial loads participating in grid control as grid-connected entities. In terms of control performance, some scholars have proposed an evaluation index system based on the technical framework of flexible load interaction impact assessment based on electricity price and incentive response mechanism, including three aspects: load interaction participation, interaction effect and grid security, and a comprehensive evaluation index system for the frequency and peak regulation performance of energy storage power stations considering the regulation, energy efficiency, reliability and environmental protection of energy storage power stations. In terms of economic performance, some scholars have constructed a comprehensive evaluation index system for demand response benefits covering technology, economy, environment and other aspects, the short-term and long-term market impact benefits and system reliability benefits of loads participating in grid control, and the user control characteristic model to evaluate the comprehensive benefits and marginal benefits of demand response based on the start and stop of three units.

[0005] However, there are few comprehensive evaluation studies on the participation of industrial loads in grid regulation, which leads to a series of problems. First, the lack of systematic comprehensive evaluation research means that decision makers lack reliable data and theoretical support when considering the participation of industrial loads in grid regulation, which makes it difficult to accurately evaluate the actual effect and potential of industrial loads in regulation, which may lead to an underestimation of the value of their participation and ultimately lead to unreasonable decisions. The lack of relevant research makes it impossible for policymakers to identify and formulate effective policies to promote the participation of industrial loads in grid regulation, which will affect the optimal management of the power system. In addition, this lack of research will also hinder the innovation and application of related technologies, thereby limiting the development of intelligent grids. Finally, for enterprises, the enthusiasm for participating in grid regulation may be affected. Due to the lack of clear benefits and effect evaluation, enterprises may not fully understand the value of participation, resulting in low participation. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that there is a lack of research on the comprehensive evaluation of industrial loads participating in power grid regulation.

[0007] In order to solve the above technical problems, the present invention provides a comprehensive evaluation method considering industrial loads participating in power grid regulation, including:

[0008] Construct an evaluation index system for industrial loads participating in power grid regulation, including potential evaluation indicators and effect evaluation indicators; the potential evaluation indicators include initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration; the effect evaluation indicators include economic performance evaluation indicators and control performance evaluation indicators; the economic performance evaluation indicators include control cost, frequency regulation and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income; the control performance evaluation indicators include load response time, load response accuracy and total regulation contribution electricity;

[0009] Collect power grid data, calculate the scores of various indicators of the evaluation index system for industrial loads participating in power grid regulation, and perform normalization processing;

[0010] Calculate the weights of various indicators in the evaluation index system for industrial loads participating in power grid regulation;

[0011] The total score of industrial load regulation performance is calculated based on the normalized scores of various indicators and their weights, and the participation of industrial loads in power grid regulation is evaluated.

[0012] Preferably, in the potential evaluation index, the formula for the initial investment cost is:

[0013] C 1,invest =F nuc,1 N ncu,1 +F line,1 Dline,1

[0014] Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 is the number of control terminals; F line,1 is the cost of laying communication cables per kilometer, D line,1 The distance between the control terminal and the control substation;

[0015] The formula for the unit adjustment cost is:

[0016]

[0017] Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals;

[0018] The formula for the second-level adjustable capacity is:

[0019] P sec =K ncu,sec P invest

[0020] Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It represents the second-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; P invest Indicates the power consumption of the target production equipment controlled by the control terminal;

[0021] The formula for the minute-level adjustable capacity is:

[0022] P min =K ncu,min P invest +∑P others

[0023] Among them, P min Indicates minute-level adjustable capacity, K ncu,min Indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; ∑P others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

[0024] Preferably, the formula for controlling the cost in the economic performance evaluation index is:

[0025] C control =|C I ×ΔP l ×Δt|

[0026] Among them, C control To control the cost; ΔPl is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient.

[0027] Preferably, the frequency regulation and peak regulation auxiliary service income in the economic performance evaluation index includes primary frequency regulation compensation income, secondary frequency regulation compensation income and peak regulation compensation income;

[0028] The primary frequency regulation compensation benefits include the compensation benefits for small frequency difference disturbances and the compensation benefits for large frequency difference disturbances; the secondary frequency regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for actual regulating capacity; the peak regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for peak regulation ancillary services.

[0029] Preferably, the formula for the basic capacity fee reduction benefit in the economic performance evaluation index is:

[0030] E2=P 1,max ×ΔF bas

[0031] Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

[0032] Preferably, the formula for the load response time in the control performance evaluation index is:

[0033]

[0034] Among them, P respond is the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 1,u Indicates the time when the industrial load starts to respond to the instruction during the i-th adjustment; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

[0035] Preferably, the formula for load response accuracy in the control performance evaluation index is:

[0036]

[0037] Among them, δ represents the load response accuracy; n represents the monthly number of industrial loads participating in power grid regulation; S i represents the target power of industrial load at the i-th adjustment; t 3,i represents the time when the industrial load response ends during the i-th adjustment; t 2,i It represents the time when the industrial load power climbs to the target power during the i-th adjustment and the deviation is always less than 2%; P1(t) represents the actual power of the industrial load at time t.

[0038] Preferably, the formula for the total regulation contribution power in the control performance evaluation index is:

[0039] Q sum =k1Q1+k2Q2+k3Q3

[0040] Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively.

[0041] Preferably, the weights of various indicators in the evaluation index system for industrial load participation in power grid regulation are calculated, including:

[0042] The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and the subjective weight.

[0043] The present invention also provides a comprehensive evaluation system considering industrial loads participating in power grid regulation, comprising:

[0044] An evaluation system construction module is used to construct an evaluation index system for industrial loads participating in power grid regulation, including potential evaluation indicators and effect evaluation indicators; the potential evaluation indicators include initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration; the effect evaluation indicators include economic performance evaluation indicators and control performance evaluation indicators; the economic performance evaluation indicators include control cost, frequency regulation and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income; the control performance evaluation indicators include load response time, load response accuracy and total regulation contribution electricity;

[0045] The indicator acquisition module is used to collect power grid data, calculate the scores of various indicators of the evaluation indicator system for industrial loads participating in power grid regulation, and perform normalization processing;

[0046] The weight acquisition module is used to calculate the weights of various indicators in the evaluation index system for industrial loads to participate in power grid regulation;

[0047] The evaluation module is used to calculate the total score of industrial load regulation performance based on the normalized scores of various indicators and their weights, and to evaluate the participation of industrial loads in power grid regulation.

[0048] Preferably, in the evaluation system building module, the formula for the initial investment cost is:

[0049] C 1,invest =Fnuc,1 N ncu,1 +F line,1 D line,1

[0050] Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 is the number of control terminals; F line,1 is the cost of laying communication cables per kilometer, D line,1 The distance between the control terminal and the control substation;

[0051] The formula for the unit adjustment cost is:

[0052]

[0053] Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals;

[0054] The formula for the second-level adjustable capacity is:

[0055] P sec =K ncu,sec P invest

[0056] Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It represents the second-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; P invest Indicates the power consumption of the target production equipment controlled by the control terminal;

[0057] The formula for the minute-level adjustable capacity is:

[0058] P min =K ncu,min P invest +∑P others

[0059] Among them, P min Indicates minute-level adjustable capacity, K ncu,min Indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; ∑P others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

[0060] Preferably, in the evaluation system construction module, the formula for controlling the cost in the economic performance evaluation index is:

[0061] C control =|C I ×ΔP l ×Δt|

[0062] Among them, C control To control the cost; ΔP l is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient.

[0063] Preferably, in the evaluation system construction module, the frequency regulation and peak regulation auxiliary service income in the economic performance evaluation index includes primary frequency regulation compensation income, secondary frequency regulation compensation income and peak regulation compensation income;

[0064] The primary frequency regulation compensation benefits include the compensation benefits for small frequency difference disturbances and the compensation benefits for large frequency difference disturbances; the secondary frequency regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for actual regulating capacity; the peak regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for peak regulation ancillary services.

[0065] Preferably, in the evaluation system construction module, the formula for the basic capacity fee reduction benefit in the economic performance evaluation index is:

[0066] E2=P 1,max ×ΔF bas

[0067] Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

[0068] Preferably, in the evaluation system building module, the formula of the load response time in the control performance evaluation index is:

[0069]

[0070] Among them, P respind is the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 1,i Indicates the time when the industrial load starts to respond to the instruction during the i-th adjustment; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

[0071] Preferably, in the evaluation system building module, the formula for load response accuracy in the control performance evaluation index is:

[0072]

[0073] Among them, δ represents the load response accuracy; n represents the monthly number of industrial loads participating in power grid regulation; S i represents the target power of industrial load at the i-th adjustment; t 3,irepresents the time when the industrial load response ends during the i-th adjustment; t 2,i It represents the time when the industrial load power climbs to the target power during the i-th adjustment and the deviation is always less than 2%; P1(t) represents the actual power of the industrial load at time t.

[0074] Preferably, in the evaluation system building module, the formula for the total regulation contribution power in the control performance evaluation index is:

[0075] Q sum =k1Q1+k2Q2+k3Q3

[0076] Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively.

[0077] Preferably, in the weight acquisition module, the weights of various indicators in the evaluation index system for industrial loads to participate in power grid regulation are calculated, including:

[0078] The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and the subjective weight.

[0079] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned comprehensive evaluation method considering the participation of industrial loads in power grid regulation are implemented.

[0080] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0081] The comprehensive evaluation method considering the participation of industrial loads in power grid regulation described in the present invention takes the adjustability of industrial loads as the starting point, considers various aspects of the performance of the user-side subject, and constructs an evaluation index system for the participation of industrial loads in power grid regulation from three aspects: regulation potential, economic performance of regulation effect, and control performance of regulation effect. It can quantify the regulation effect and benefit of the power grid when industrial loads participate in regulation. In addition, the present invention adopts a method combining subjective weights and objective weights to calculate the weight coefficients of various indicators, thereby realizing a reasonable evaluation of the participation of industrial loads in power grid regulation. The present invention can improve the enthusiasm of industrial loads to interact with the power grid, provide a reliable basis for the potential prediction of industrial loads before participating in power grid regulation and the establishment of a reward and benefit mechanism after regulation, and provide an important reference for power grid dispatching and marketing departments to specify corresponding regulation strategies. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0083] Figure 1 It is a flow chart of a comprehensive evaluation method considering industrial loads participating in power grid regulation of the present invention;

[0084] Figure 2 It is a structural diagram of the evaluation index system for industrial loads participating in power grid regulation. DETAILED DESCRIPTION

[0085] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0086] Embodiment 1

[0087] Reference Figure 1 As shown, the present invention provides a comprehensive evaluation method considering industrial loads participating in power grid regulation, including:

[0088] S1. Reference Figure 2 As shown in the figure, an evaluation index system for industrial loads participating in grid regulation is constructed. According to the characteristics of high-energy-consuming industrial loads before and after participating in grid interactive response, the evaluation index system for industrial loads participating in grid regulation includes potential evaluation indexes and effect evaluation indexes.

[0089] The potential evaluation index represents the ability of industrial loads to participate in power grid regulation. The present invention analyzes the industrial load demand based on the power grid to obtain potential evaluation indicators, including initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration.

[0090] The main means for industrial loads to interact with the power grid in real time is to install additional control terminals on the main power-consuming equipment for auxiliary control, so that the industrial loads can quickly respond to power grid instructions. Investment in the control terminal is required, and the formula for calculating the initial investment cost is:

[0091] C 1,invest =F nuc,1 N ncu,1 +F line,1 D line,1

[0092] Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 F is the number of installed control terminals; line,1 is the cost of laying communication cables per kilometer, Dline,1 It is the distance between the control terminal and the control substation.

[0093] The unit regulation cost represents the investment cost required to deploy the control terminal to enable the industrial load to have each megawatt of adjustable capacity. The smaller the index is, the more investment value the corresponding industrial enterprise has. The formula is as follows:

[0094]

[0095] Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals.

[0096] The second-level adjustable capacity is the second-level adjustable capacity for power grid frequency modulation, which refers to the adjustable capacity of the main production power equipment of the industrial enterprise installed with the control terminal that can respond to the power grid frequency modulation in seconds. The formula is as follows:

[0097] P sec =K ncu,sec P invest

[0098] Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It indicates the second-level adjustable coefficient set by the control terminal when the industrial load participates in the power grid regulation; P invest Indicates the electrical power consumption of the target production equipment controlled by the control terminal.

[0099] Examples of target production equipment:

[0100] The manufacturing industry includes electric motors, welding equipment, CNC machine tools, etc.; the chemical industry includes reactors, centrifuges, pumps and valves, etc.; the metallurgical industry includes electric furnaces, continuous casting machines, rolling mills, etc.; the cement and building materials industry includes cement mills, rotary kilns, vibrating screens, etc.

[0101] The minute-level adjustable capacity refers to the adjustable capacity of the main production power-consuming equipment and other start-stop equipment installed with the control terminal that can respond to the peak load of the power grid at the minute level. The formula is as follows:

[0102] P min =K ncu,min P invest +ΣP others

[0103] Among them, P min Indicates minute-level adjustable capacity, K ncu,min It indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in grid regulation. Considering the negative impact caused by long-term continuous regulation of thermal storage loads (such as electrolytic cell coagulation tank), K is usually ncu,min will be smaller than Kncu,sec ; ΣP others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

[0104] The sustainable duration refers to the sustainable duration of power limit regulation, which indicates the duration that the industrial load can be at the upper or lower power limit when participating in grid regulation while minimizing the impact on production. This indicator is related to the production characteristics of the actual industrial load. Taking an electrolytic aluminum enterprise as an example, during the production of electrolytic aluminum, the thermal stability of the production process needs to be maintained. In the case of thermal balance destruction caused by participating in grid regulation, if the short-term power outage is controlled within 3 hours, the electrolytic cell will not be forced to stop. At this time, the sustainable duration of power limit regulation is 3 hours. Considering that the temperature and power consumption of the main electrical equipment of thermal storage type industrial loads are coupled, long-term power regulation will cause the temperature to exceed the range required for production, so the sustainable duration of power limit regulation of such industrial loads is relatively short.

[0105] The effect evaluation index is used to represent the effect of industrial load participating in power grid regulation, including economic performance evaluation index and control performance evaluation index. The economic performance evaluation index can describe the cost and benefit of industrial load participating in regulation in detail, and the control performance evaluation index can provide a reference for subsequent interactive response. Based on the above theory, specific evaluation indicators of economic performance and control performance are obtained.

[0106] The economic performance evaluation indicators include control cost, frequency and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income.

[0107] The power change of industrial loads when participating in grid regulation will have a certain impact on the production and operation of enterprises. The control cost includes upward adjustment cost and downward adjustment cost. The downward adjustment cost is the economic loss caused by the decline in output, and the upward adjustment cost is the economic loss caused by the decline in production efficiency. The formula is as follows:

[0108] C control =|C I ×ΔP l ×Δt|

[0109]

[0110] Among them, C control To control the cost; ΔP l is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient; F p Indicates the unit load price, in yuan / t; F c It represents the unit load production cost, in yuan / t; C Eis the electricity consumption per unit of output; α is the percentage of electricity consumption cost in the production cost of industrial enterprises; η is the electricity production efficiency.

[0111] The frequency regulation and peak load ancillary service income includes primary frequency regulation compensation income, secondary frequency regulation compensation income and peak load compensation income. Industrial enterprises can participate in a variety of ancillary services within a period of time. The ancillary fee income finally obtained by the enterprise is the sum of the different types of ancillary service income participated in. The formula is as follows:

[0112] E1=E 1,a +E 1,b +E 1,c

[0113] Among them, E1 is the revenue from frequency and peak regulation auxiliary services; E 1,a is the primary frequency regulation compensation income; E 1,b is the secondary frequency regulation compensation income; E 1,c To compensate for the peak load.

[0114] The primary frequency regulation compensation benefits include small frequency difference disturbance compensation benefits and large frequency difference disturbance compensation benefits. The two compensation standards are different, but both are based on the industrial load primary frequency regulation action integral power that exceeds 70% of the regulation instruction integral power. The formula for primary frequency regulation compensation benefits is:

[0115] E 1,a =E 1,a1 +E 1,a2

[0116]

[0117] Among them, E 1,a1 is the compensation gain of small frequency difference disturbance; E 1,a2 is the compensation income for large frequency difference disturbance; R1 is the paid primary frequency regulation compensation standard for the grid-connected entity, in units of 10,000 yuan / (MWh); n1 is the monthly number of primary frequency regulation actions for industrial loads facing small frequency difference disturbances; ΔP load (t) is the real-time power adjustment value of primary frequency modulation; t 1,i It represents the time when the industrial load starts to respond to the instruction during the i-th adjustment, t 3,i Indicates the time when the industrial load response ends during the i-th adjustment; ΔS i is the real-time target regulation amount; n2 is the number of monthly frequency regulation actions of industrial load facing large frequency difference disturbance.

[0118] The secondary frequency regulation compensation income includes the compensation income for regulating reserve capacity and the compensation income for actual regulating capacity. The compensation income for regulating reserve capacity refers to the cumulative supply compensation fee for adjustable capacity during the period when industrial loads participate in power grid regulation. The formula for the secondary frequency regulation compensation income is:

[0119] E1,b =E 1,b1 +E 1,b2

[0120]

[0121] E 1,b2 =|ΔP 1,t1 |×Δt1×R3

[0122] Among them, E 1,b1 To adjust the reserve capacity compensation income; E 1,b2 is the actual adjustment capacity compensation income; ΔP 1,up_max To adjust the capacity upward; ΔP 1,down_max is the downward adjustment capacity; R2 is the automatic power generation control adjustment capacity compensation standard of the grid-connected entity, the unit is yuan / (MW·h); ΔP 1,t1 is the actual adjustment amount of the secondary frequency regulation; Δt1 is the duration of the secondary frequency regulation; R3 is the automatic power generation control adjustment power compensation standard of the grid-connected entity.

[0123] Peak load compensation benefits include compensation benefits for regulating reserve capacity and compensation benefits for peak load ancillary services. The compensation standards for peak load shaving and valley filling responses in peak load ancillary services compensation are different. The formula for peak load compensation benefits is:

[0124] E 1,c =E 1,b1 +E 1,c1

[0125]

[0126] Among them, E 1,c1 Compensation for peak load ancillary services; ΔP 1,t2 is the actual peak regulation amount; Δt2 is the peak regulation duration; R5 is the deep peak regulation compensation standard, the unit is yuan / (MW·h).

[0127] The definition of the basic capacity fee reduction benefit is: large industrial users need to pay a certain basic capacity electricity fee to the power grid every month, which is the product of the maximum load demand and the basic electricity price. If industrial users participate in power auxiliary services, they can obtain the benefits of the reduction of the basic electricity fee calculation standard of the power grid, that is, the basic capacity fee reduction benefit, the formula is:

[0128] E2=P 1,max ×ΔF bas

[0129] Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

[0130] The revenue from new energy consumption includes two parts: when the wind and solar power are strong, generally during the low load period, the industrial load can fill the valley or respond with frequency modulation, which can consume new energy and obtain revenue at a lower electricity price; when the load is at a peak, the peak shaving response is performed, at which time the self-provided new energy can be reversely transmitted to the power grid to sell electricity and obtain revenue. The revenue from new energy consumption can be obtained through the new energy consumption statistical data provided by the power grid or the power consumption, power sales and new energy generation curves of industrial users, combined with the market electricity price data.

[0131] The control performance evaluation indicators include load response time, load response accuracy and total regulation contribution power.

[0132] The load response time indicates the difference between the time when the industrial load starts to respond to the control command and climbs toward the target power and the time when it reaches the target power with the deviation always less than 2%. The formula is as follows:

[0133]

[0134] Among them, P respond is the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

[0135] Load response accuracy refers to the deviation between the actual regulated power of industrial load and the control instruction. The formula is as follows:

[0136]

[0137] Among them, δ represents the load response accuracy, S i represents the target power of the industrial load at the i-th adjustment; P1(t) represents the actual power of the industrial load at time t.

[0138] The total regulation contribution represents the sum of the contribution of industrial loads to different types of auxiliary services after being allocated in a certain proportion. The formula is as follows:

[0139] Q sum =k1Q1+k2Q2+k3Q3

[0140]

[0141] Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively, and the three satisfy k1+k2+k3=1; ΔP 1,t1,iis the adjustment power of the secondary frequency modulation during the i-th adjustment; Δt 1,i is the duration of the secondary frequency modulation during the i-th adjustment; ΔP 1,t2,i is the peak regulation power during the i-th regulation; Δt 2,i is the duration of peak regulation during the i-th regulation.

[0142] S2. Collect power grid data, calculate the scores of various indicators of the evaluation index system for industrial load participation in power grid regulation, and perform normalization processing to eliminate the differences in data size between different indicators.

[0143] S3. Calculate the weight of each indicator in the evaluation index system for industrial load participation in power grid regulation.

[0144] The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and subjective weight. The formula is:

[0145]

[0146] Among them, w i is the target weight of the kth indicator, is the subjective weight of the kth indicator, is the objective weight of the kth indicator, a and b are the distribution coefficients of subjective weight and objective weight respectively.

[0147] In order to express the difference between the load response and the expected weighted value, the deviation degree of the weighted value of the jth industrial load is calculated as:

[0148]

[0149] Among them, D j is the weighted value deviation degree of the jth industrial load, N represents the total number of indicators, x kj It indicates the degree of deviation of the weighted value of the kth indicator of the jth industrial load during the adjustment process.

[0150] Establish a deviation degree model for the weighted values ​​of all industrial loads involved in the evaluation:

[0151]

[0152] Solving this model can obtain the distribution coefficients of subjective weights and objective weights.

[0153] S4. Calculate the total score of industrial load regulation performance based on the normalized scores of various indicators and their weights, and evaluate the participation of industrial loads in grid regulation.

[0154] Based on the method of the present invention, this embodiment evaluates and analyzes the comprehensive performance of industrial loads participating in grid regulation for electrolytic aluminum, steel and polysilicon enterprises respectively. The results are shown in Table 1.

[0155] Table 1 Industrial load total evaluation table

[0156]

[0157] From Table 1, it can be found that the total score of electrolytic aluminum enterprises is the highest. This is because the electrolytic aluminum load single capacity and adjustable capacity are large. After appropriate modification of its rectifier transformer and access to a single terminal controller, millisecond-level power detection response can be achieved. However, polysilicon and steel enterprises generally have multiple production lines and need to be connected to multiple control terminals, with high investment costs and response times of seconds. It can be seen that the comprehensive evaluation score of the present invention is consistent with the actual situation.

[0158] In summary, the comprehensive evaluation method considering the participation of industrial loads in power grid regulation described in the present invention takes the adjustability of industrial loads as the starting point, considers various aspects of the performance of the user-side subject, and constructs an evaluation index system for the participation of industrial loads in power grid regulation from three aspects: regulation potential, economic performance of regulation effect, and control performance of regulation effect. It can quantify the regulation effect and benefit of the power grid when industrial loads participate in regulation. In addition, the present invention adopts a method combining subjective weights and objective weights to calculate the weight coefficients of various indicators, thereby realizing a reasonable evaluation of the participation of industrial loads in power grid regulation. The present invention can improve the enthusiasm of industrial loads in interacting with the power grid, provide a reliable basis for the potential prediction of industrial loads before participating in power grid regulation and the establishment of a reward and benefit mechanism after regulation, and provide an important reference for power grid dispatching and marketing departments to specify corresponding regulation strategies.

[0159] Embodiment 2

[0160] Based on the comprehensive evaluation method considering industrial loads participating in power grid regulation described in the first embodiment, this embodiment further provides a comprehensive evaluation system considering industrial loads participating in power grid regulation, including:

[0161] An evaluation system construction module is used to construct an evaluation index system for industrial loads participating in power grid regulation, including potential evaluation indicators and effect evaluation indicators; the potential evaluation indicators include initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration; the effect evaluation indicators include economic performance evaluation indicators and control performance evaluation indicators; the economic performance evaluation indicators include control cost, frequency regulation and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income; the control performance evaluation indicators include load response time, load response accuracy and total regulation contribution electricity;

[0162] The indicator acquisition module is used to collect power grid data, calculate the scores of various indicators of the evaluation indicator system for industrial loads participating in power grid regulation, and perform normalization processing;

[0163] The weight acquisition module is used to calculate the weights of various indicators in the evaluation index system for industrial loads to participate in power grid regulation;

[0164] The evaluation module is used to calculate the total score of industrial load regulation performance based on the normalized scores of various indicators and their weights, and to evaluate the participation of industrial loads in power grid regulation.

[0165] Preferably, in the evaluation system building module, the formula for the initial investment cost is:

[0166] C 1,invest =F nuc,1 N ncu,1 +F line,1 D line,1

[0167] Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 is the number of control terminals; F line,1 is the cost of laying communication cables per kilometer, D line,1 The distance between the control terminal and the control substation;

[0168] The formula for the unit adjustment cost is:

[0169]

[0170] Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals;

[0171] The formula for the second-level adjustable capacity is:

[0172] P sec =K ncu,sec P invest

[0173] Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It represents the second-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; P invest Indicates the power consumption of the target production equipment controlled by the control terminal;

[0174] The formula for the minute-level adjustable capacity is:

[0175] P min =K ncu,min Pinvest +∑P others

[0176] Among them, P min Indicates minute-level adjustable capacity, K ncu,min Indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; ∑P others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

[0177] Preferably, in the evaluation system construction module, the formula for controlling the cost in the economic performance evaluation index is:

[0178] C control =|C I ×ΔP l ×Δt|

[0179] Among them, C control To control the cost; ΔP l is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient.

[0180] Preferably, in the evaluation system construction module, the frequency regulation and peak regulation auxiliary service income in the economic performance evaluation index includes primary frequency regulation compensation income, secondary frequency regulation compensation income and peak regulation compensation income;

[0181] The primary frequency regulation compensation benefits include the compensation benefits for small frequency difference disturbances and the compensation benefits for large frequency difference disturbances; the secondary frequency regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for actual regulating capacity; the peak regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for peak regulation ancillary services.

[0182] Preferably, in the evaluation system construction module, the formula for the basic capacity fee reduction benefit in the economic performance evaluation index is:

[0183] E2=P 1,max ×ΔF bas

[0184] Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

[0185] Preferably, in the evaluation system building module, the formula of the load response time in the control performance evaluation index is:

[0186]

[0187] Among them, P respondis the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 1,i Indicates the time when the industrial load starts to respond to the instruction during the i-th adjustment; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

[0188] Preferably, in the evaluation system building module, the formula for load response accuracy in the control performance evaluation index is:

[0189]

[0190] Among them, δ represents the load response accuracy; n represents the monthly number of industrial loads participating in power grid regulation; S i represents the target power of industrial load at the i-th adjustment; t 3,i represents the time when the industrial load response ends during the i-th adjustment; t 2,i It represents the time when the industrial load power climbs to the target power during the i-th adjustment and the deviation is always less than 2%; P1(t) represents the actual power of the industrial load at time t.

[0191] Preferably, in the evaluation system building module, the formula for the total regulation contribution power in the control performance evaluation index is:

[0192] Q sum =k1Q1+k2Q2+k3Q3

[0193] Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively.

[0194] Preferably, in the weight acquisition module, the weights of various indicators in the evaluation index system for industrial loads to participate in power grid regulation are calculated, including:

[0195] The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and the subjective weight.

[0196] Embodiment 3

[0197] Based on the comprehensive evaluation method considering the participation of industrial loads in power grid regulation described in Example 1, this embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned comprehensive evaluation method considering the participation of industrial loads in power grid regulation are implemented.

[0198] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0199] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0200] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0201] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0202] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A comprehensive evaluation method considering industrial loads participating in power grid regulation, characterized in that: include: Construct an evaluation index system for industrial loads participating in power grid regulation, including potential evaluation indicators and effect evaluation indicators; the potential evaluation indicators include initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration; the effect evaluation indicators include economic performance evaluation indicators and control performance evaluation indicators; the economic performance evaluation indicators include control cost, frequency regulation and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income; the control performance evaluation indicators include load response time, load response accuracy and total regulation contribution electricity; Collect power grid data, calculate the scores of various indicators of the evaluation index system for industrial loads participating in power grid regulation, and perform normalization processing; Calculate the weights of various indicators in the evaluation index system for industrial loads participating in power grid regulation; The total score of industrial load regulation performance is calculated based on the normalized scores of various indicators and their weights, and the participation of industrial loads in power grid regulation is evaluated.

2. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: In the potential assessment index, the formula for the initial investment cost is: C 1,invest =F nuc,1 N ncu,1 +F line,1 D line,1 Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 is the number of control terminals; F line,1 is the cost of laying communication cables per kilometer, D line,1 The distance between the control terminal and the control substation; The formula for the unit adjustment cost is: Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals; The formula for the second-level adjustable capacity is: P sec =K ncu,sec P invest Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It represents the second-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; P invest Indicates the power consumption of the target production equipment controlled by the control terminal; The formula for the minute-level adjustable capacity is: Among them, P min Indicates minute-level adjustable capacity, K ncu,min Indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; ∑P others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

3. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The formula for controlling the cost in the economic performance evaluation index is: C control =|C I ×ΔP l ×Δt| Among them, C control To control the cost; ΔP l is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient.

4. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The frequency regulation and peak regulation ancillary service benefits in the economic performance evaluation indicators include primary frequency regulation compensation benefits, secondary frequency regulation compensation benefits and peak regulation compensation benefits; The primary frequency regulation compensation benefits include the compensation benefits for small frequency difference disturbances and the compensation benefits for large frequency difference disturbances; the secondary frequency regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for actual regulating capacity; the peak regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for peak regulation ancillary services.

5. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The formula for the basic capacity fee reduction benefit in the economic performance evaluation index is: E2=P 1,max ×ΔF bas Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

6. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The formula of load response time in the control performance evaluation index is: Among them, P respond is the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 1,i Indicates the time when the industrial load starts to respond to the instruction during the i-th adjustment; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

7. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The formula for load response accuracy in the control performance evaluation index is: Among them, δ represents the load response accuracy; n represents the number of monthly actions of industrial loads participating in power grid regulation; S i represents the target power of industrial load at the i-th adjustment; t 3,i represents the time when the industrial load response ends during the i-th adjustment; t 2,i It represents the time when the industrial load power climbs to the target power during the i-th adjustment and the deviation is always less than 2%; P1(t) represents the actual power of the industrial load at time t.

8. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: The formula for the total regulation contribution power in the control performance evaluation index is: Q sum =k1Q1+k2Q2+k3Q3 Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively.

9. A comprehensive evaluation method considering industrial loads participating in power grid regulation according to claim 1, characterized in that: Calculate the weights of various indicators in the evaluation index system for industrial load participation in power grid regulation, including: The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and the subjective weight.

10. A comprehensive evaluation system considering industrial loads participating in power grid regulation, characterized in that: include: An evaluation system construction module is used to construct an evaluation index system for industrial loads participating in power grid regulation, including potential evaluation indicators and effect evaluation indicators; the potential evaluation indicators include initial investment cost, unit regulation cost, second-level adjustable capacity, minute-level adjustable capacity and sustainable duration; the effect evaluation indicators include economic performance evaluation indicators and control performance evaluation indicators; the economic performance evaluation indicators include control cost, frequency regulation and peak regulation auxiliary service income, basic capacity fee reduction income and new energy consumption income; the control performance evaluation indicators include load response time, load response accuracy and total regulation contribution electricity; The indicator acquisition module is used to collect power grid data, calculate the scores of various indicators of the evaluation indicator system for industrial loads participating in power grid regulation, and perform normalization processing; The weight acquisition module is used to calculate the weights of various indicators in the evaluation index system for industrial loads to participate in power grid regulation; The evaluation module is used to calculate the total score of industrial load regulation performance based on the normalized scores of various indicators and their weights, and to evaluate the participation of industrial loads in power grid regulation.

11. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system building module, the formula for the initial investment cost is: C 1,invest =F nuc,1 N ncu,1 +F line,1 D line,1 Among them, C 1,invest is the initial investment cost, F nuc,1 is the investment cost of a single control terminal; N ncu,1 is the number of control terminals; F line,1 is the cost of laying communication cables per kilometer, D line,1 The distance between the control terminal and the control substation; The formula for the unit adjustment cost is: Where C represents the unit adjustment cost, ΔP 1,ncu It indicates the adjustable capacity that industrial enterprises have after the deployment of control terminals; The formula for the second-level adjustable capacity is: P sec =K ncu,sec P invest Among them, P sec Indicates the adjustable capacity in seconds, K ncu,sec It represents the second-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; P invest Indicates the power consumption of the target production equipment controlled by the control terminal; The formula for the minute-level adjustable capacity is: Among them, P min Indicates minute-level adjustable capacity, K ncu,min Indicates the minute-level adjustable coefficient of the control terminal when industrial load participates in power grid regulation; ∑P others It represents the total capacity of startable and stoppable equipment in industrial enterprises that participate in power grid regulation.

12. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system construction module, the formula for controlling the cost in the economic performance evaluation index is: C control =|C I ×ΔP l ×Δt| Among them, C control To control the cost; ΔP l is the adjustment power; Δt is the adjustment duration; C I is the unit control cost coefficient.

13. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system construction module, the frequency regulation and peak regulation auxiliary service income in the economic performance evaluation index includes primary frequency regulation compensation income, secondary frequency regulation compensation income and peak regulation compensation income; The primary frequency regulation compensation benefits include the compensation benefits for small frequency difference disturbances and the compensation benefits for large frequency difference disturbances; the secondary frequency regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for actual regulating capacity; the peak regulation compensation benefits include the compensation benefits for regulating reserve capacity and the compensation benefits for peak regulation ancillary services.

14. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system construction module, the formula for the basic capacity fee reduction benefit in the economic performance evaluation index is: E2=P 1,max ×ΔF bas Among them, E2 is the income from reducing basic capacity fee, P 1,max is the maximum power demand of industrial load; ΔF bas It is the reduction of basic electricity price.

15. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system building module, the formula for the load response time in the control performance evaluation index is: Among them, P respond is the load response time, n represents the monthly number of industrial loads participating in power grid regulation; t 1,i Indicates the time when the industrial load starts to respond to the instruction during the i-th adjustment; t 2,i It indicates the time it takes for the industrial load power to climb to the target power during the i-th adjustment and the deviation is always less than 2%.

16. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system building module, the formula for load response accuracy in the control performance evaluation index is: Among them, δ represents the load response accuracy; n represents the number of monthly actions of industrial loads participating in power grid regulation; S i represents the target power of industrial load at the i-th adjustment; t 3,i represents the time when the industrial load response ends during the i-th adjustment; t 2,i It represents the time when the industrial load power climbs to the target power during the i-th adjustment and the deviation is always less than 2%; P1(t) represents the actual power of the industrial load at time t.

17. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the evaluation system building module, the formula for the total regulation contribution power in the control performance evaluation index is: Q sum =k1Q1+k2Q2+k3Q3 Among them, Q sum represents the total regulation contribution, Q1, Q2 and Q3 represent the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively; k1, k2 and k3 represent the contribution ratio coefficients of the primary frequency regulation contribution, secondary frequency regulation contribution and peak regulation contribution respectively.

18. A comprehensive evaluation system considering industrial loads participating in power grid regulation according to claim 10, characterized in that: In the weight acquisition module, the weights of various indicators in the evaluation index system for industrial load participation in power grid regulation are calculated, including: The objective weight of each indicator in the evaluation index system is calculated by the AHP-entropy weight method, and the subjective weight of each indicator in the evaluation index system is calculated by the hierarchical analysis method. The target weight of each indicator is obtained based on the objective weight and the subjective weight.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of a comprehensive evaluation method for considering industrial loads participating in power grid regulation as described in any one of claims 1 to 9.

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