Regulation and control method and regulation and control system applied to gas pipe network system, and electronic device

Abstract

The present invention provides a regulation and control method applied to a gas pipe network system, comprising: on the basis of a preset electricity price prediction method, predicting electricity price fluctuation information in a preset regulation and control time period; determining an off-peak hour period and a peak hour period in the preset regulation and control time period on the basis of the electricity price fluctuation information, and taking at least some of moments within the off-peak hour period and the peak hour period as target moments; on the basis of pipe network information of a gas transmission pipe network and input gas mass flow rate required by each gas consumption end, constructing an input gas pressure model corresponding to each gas consumption end; and when any target moment is reached, on the basis of the input gas pressure model corresponding to each gas consumption end, a preset input gas pressure range corresponding to each gas consumption end, and the input gas mass flow rate required by each gas consumption end at the target moment, determining input gas mass flow rate required by a gasholder system at the target moment, output gas mass flow rate of the gasholder system, and output gas pressure of the gasholder system, and correspondingly controlling the gasholder system.

Description

Control method, control system and electronic equipment applied to gas pipe network system Technical Field

[0001] The present disclosure relates to the technical field of coal gas power generation optimization in steel enterprises, and in particular to a control method, a control system, and electronic equipment applied to a coal gas pipe network system. Background Art

[0002] Steel companies generate a large amount of by-product gas during the production process. Utilizing excess by-product gas for power generation is an important measure for the steel industry to recycle resources and develop a circular economy. Gas-fired power generation systems, such as gas boilers and gas-steam combined cycle power generation units, are installed in the gas pipeline network system and have been widely used in steel companies.

[0003] Summary of the Invention

[0004] In a first aspect, embodiments of the present disclosure provide a control method for a gas pipe network system, the gas pipe network system comprising: a gas supply end, a gas transmission pipe network, a gas holder system, and N gas consumption ends, the gas supply end being connected to the gas transmission pipe network, the gas inlet of the gas holder system being connected to the gas transmission pipe network via a configured compression mechanism, the gas outlet of the gas holder system being connected to the gas transmission pipe network via a corresponding gas outlet control mechanism, the gas consumption end being connected to the gas transmission pipe network, and at least one of the N gas consumption ends being a gas power generation system;

[0005] The control method comprises:

[0006] Step S1: predicting electricity price fluctuation information within a preset control period based on a preset electricity price prediction method, wherein the electricity price fluctuation information includes predicted electricity prices corresponding to different moments within the preset control period;

[0007] Step S2: determining a valley power period and a peak power period within the preset control period according to the electricity price fluctuation information, and using at least part of the valley power period and the peak power period as the target time;

[0008] Step S3: constructing an input gas pressure model corresponding to each gas consumer based on the network information of the gas transmission network and the input gas mass flow rate required by each gas consumer. The input gas pressure model is used to describe the input gas pressure at the gas consumer when the gas supply end and the gas holder system respectively supply gas to the gas transmission network at different output gas pressures.

[0009] Step S4: When any of the target moments is reached, the input gas mass flow rate required by the gasholder system at the target moment, the output gas mass flow rate of the gasholder system, and the output gas pressure of the gasholder system are determined based on the input gas pressure model corresponding to each gas-consuming end, the preset input gas pressure range corresponding to each gas-consuming end, and the input gas mass flow rate required by each gas-consuming end at the target moment, and the gasholder system is controlled accordingly.

[0010] In some embodiments, the pipe network information includes: the resistance coefficient of each pipe network unit included in the gas transmission pipe network and the connection relationship between different pipe network units;

[0011] Step S3 includes:

[0012] Step S301: Determine a first gas transmission path and a second gas transmission path corresponding to each gas consumption end, wherein one end of the first gas transmission path is connected to the corresponding gas consumption end, the other end of the first gas transmission path is connected to the gas supply end, and one end of the second gas transmission path is connected to the corresponding gas consumption end, and the other end of the second gas transmission path is connected to the gas holder system;

[0013] Step S302: For each of the first gas transmission pathways corresponding to the gas consumption ends, an equivalent resistance coefficient of the first gas transmission pathway is determined based on the series-parallel relationship and resistance coefficient of each pipe network unit in the first gas transmission pathway. Furthermore, for each of the second gas transmission pathways corresponding to the gas consumption ends, an equivalent resistance coefficient of the second gas transmission pathway is determined based on the series-parallel relationship and resistance coefficient of each pipe network unit in the second gas transmission pathway.

[0014] Step S303: For each gas consumer, construct an input gas pressure model corresponding to the gas consumer based on the equivalent resistance coefficient of the first gas transmission path corresponding to the gas consumer, the equivalent resistance coefficient of the second gas transmission path corresponding to the gas consumer, the input gas pressure required by the gas consumer, the output gas pressure of the gas supply end, and the output gas pressure of the gas holder system;

[0015] The input gas pressure model corresponding to the i-th gas consumption end is expressed as follows:

[0016] P i =P0-m i 2 *R i +P0'-m i 2 *R i '

[0017] P0 represents the output gas pressure of the gas supply end, P0' represents the output gas pressure of the gas tank system, m irepresents the input gas mass flow rate required by the i-th gas consumption end, R i R represents the equivalent resistance coefficient of the first gas transmission path corresponding to the i-th gas consumption end. i ' represents the equivalent resistance coefficient of the second gas transmission path corresponding to the i-th gas consumption end, P i It represents the input gas pressure corresponding to the i-th gas consumption end when the output gas pressure of the gas supply end is P0 and the output gas pressure of the gas tank system is P0', i∈[1,N].

[0018] In some embodiments, the target time includes: the starting time of the valley power period;

[0019] Step S4 includes:

[0020] Step S401a: When the off-peak period starts, the gas outlet control mechanism at the gas outlet of the gas holder system is controlled to be closed, and the output gas mass flow rate of the gas holder system is determined to be 0 and the output gas pressure of the gas holder system is determined to be 0;

[0021] Step S402a, controlling the gas supply end to increase the output gas pressure;

[0022] The output gas pressure P0 of the gas supply end adjusted in step S402a satisfies: P0>Ps, and the input gas pressure P obtained by the corresponding input gas pressure model for any i-th gas consumption end is i are all within the preset input gas pressure range corresponding to the i-th gas consumption end, where Ps is the preset output gas pressure reference value of the gas supply end;

[0023] Step S403a: Determine the input gas mass flow rate required by the gas holder system at the current moment based on the output gas mass flow rate of the gas supply end at the current moment, the output gas pressure of the gas supply end at the current moment, the input gas mass flow rate required by each gas consumer end, and the preset input gas pressure range corresponding to the gas holder system;

[0024] The input gas mass flow rate m0″ of the gas cabinet system at the current moment determined in step S403a satisfies the following formula:

[0025] P0"=P0-m0"*m0"*R0 and P0"∈[P0"_min,P0"_max]

[0026] Wherein, m0 represents the output gas mass flow rate of the gas supply end at the current moment, R0 represents the equivalent resistance coefficient of the gas transmission path connecting the gas supply end to the gas inlet of the gas holder system, P0" represents the input gas pressure of the gas holder system at the current moment, P0"_min and P0"_max represent the lower limit and upper limit of the preset input gas pressure range corresponding to the gas holder system, respectively;

[0027] Step S404a: Adjust the working state of the compression mechanism configured at the gas inlet of the gas holder system so that the input gas mass flow rate at the gas inlet of the gas holder system is the input gas mass flow rate determined in step S403a, so as to store gas in the gas holder system.

[0028] In some embodiments, the target time further includes: at least one target valley power time located within the valley power period and after the start time;

[0029] Step S4 also includes:

[0030] Step S405a: When any target valley power moment within the valley power period is reached, determining whether the currently stored gas tank level of the gas tank system is greater than or equal to a preset peak-valley regulation tank level upper limit threshold;

[0031] If yes, execute step S406a; if no, execute step S403a and step S404a again;

[0032] Step S406a: Control the compression mechanism configured at the gas inlet of the gas holder system to be in a closed state to stop storing gas in the gas holder system.

[0033] In some embodiments, the target time includes: the starting time of the peak power period;

[0034] Step S4 includes:

[0035] Step S401b: When the peak power period starts, the compression mechanism configured at the gas inlet of the gas holder system is controlled to be in a closed state, and the required input gas mass flow rate of the gas holder system is determined to be 0;

[0036] Step S402b, controlling the gas supply end to lower the output gas pressure, wherein the adjusted output gas pressure of the gas supply end is P0, P0<Ps, where Ps is a preset reference value of the output gas pressure of the gas supply end;

[0037] Step S403b: determining the output gas mass flow rate and output gas pressure of the gas holder system at the current moment based on the output gas mass flow rate of the gas supply end at the current moment, the output gas pressure of the gas supply end at the current moment, and the input gas mass flow rate required by each gas consumption end;

[0038] The output gas pressure P0 of the gas supply end adjusted in step S402b, and the output gas mass flow m0' and output gas pressure P0' of the gas cabinet system at the current moment determined in step S403b satisfy the following formula:

[0039] P i =P0-m i 2 *R i +P0'-m i 2 *R i 'And P i ∈[P i _min,P i _max]

[0040] Among them, P i _min and P i _max respectively represent the lower limit and upper limit of the preset input gas pressure range corresponding to the i-th gas consumption end;

[0041] Step S404b: Adjust the working state of the gas outlet control mechanism at the gas outlet of the gas holder system so that the output gas mass flow rate and the output gas pressure at the gas outlet of the gas holder system are respectively the output gas mass flow rate and the output gas pressure determined in step S403b.

[0042] In some embodiments, at the start of the peak power period and before step S403b, the method further includes:

[0043] Step S40bb: controlling the coal gas power generation system to increase power generation per unit time, and increasing the input gas mass flow rate required by the coal gas power generation system;

[0044] And also includes:

[0045] Step S407b: When the peak power period ends, the gas power generation system is controlled to reduce the power generation per unit time to a preset power generation reference value, and the input gas mass flow required by the gas power generation system is reduced.

[0046] In some embodiments, the target time further includes: at least one target peak power time that is within the peak power period and after the start time;

[0047] Step S4 also includes:

[0048] Step S405b: when any target peak power moment within the peak power period is reached, determining whether the currently stored gas tank level of the gas tank system is less than or equal to a preset peak-valley adjustment tank level lower limit threshold;

[0049] If yes, execute step S406b; if no, execute step S403b and step S404b again;

[0050] Step S406b: Control the gas outlet control mechanism at the gas outlet of the gas holder system to be in a closed state to stop outputting gas to the gas holder system.

[0051] In some embodiments, in step S2, while determining the valley power period and peak power period within the preset control period according to the electricity price fluctuation information, the normal power period within the preset control period is also determined;

[0052] The control method further comprises:

[0053] Step S5: When the normal power period starts, controlling the output gas intensity P0 of the gas supply end to be equal to Ps, where Ps is a preset reference value of the output gas pressure of the gas supply end;

[0054] Step S6: When reaching any target normal power time within the normal power period, compare the output gas mass flow m0 of the gas supply end at the current time with the total input gas mass flow required by all gas consumption ends. The size of the two;

[0055] like Then execute step S7; if Then execute step S8; if Then execute step S9;

[0056] Step S7: controlling the operating states of the compression mechanism at the gas inlet and the gas outlet control mechanism at the gas outlet of the gas holder system respectively, and making the input gas mass flow rate at the gas inlet of the gas holder system greater than the output gas mass flow rate at the gas outlet of the gas holder system;

[0057] Step S8: controlling the operating states of the compression mechanism at the gas inlet and the gas outlet control mechanism at the gas outlet of the gas holder system respectively, and making the input gas mass flow rate at the gas inlet of the gas holder system equal to the output gas mass flow rate at the gas outlet of the gas holder system;

[0058] Step S9: Control the working states of the compression mechanism at the air inlet and the air outlet control mechanism at the air outlet of the gas holder system respectively, and make the input gas mass flow rate at the air inlet of the gas holder system smaller than the output gas mass flow rate at the air outlet of the gas holder system.

[0059] In a second aspect, embodiments of the present disclosure further provide a control system for a gas pipe network system, the gas pipe network system comprising: a gas supply end, a gas transmission pipe network, a gas tank system, and N gas consumption ends, the gas supply end being connected to the gas transmission pipe network, the gas inlet of the gas tank system being connected to the gas transmission pipe network via a configured compression mechanism, the gas outlet of the gas tank system being connected to the gas transmission pipe network via a corresponding gas outlet control mechanism, the gas consumption end being connected to the gas transmission pipe network, and at least one of the N gas consumption ends being a gas power generation system;

[0060] The control system is configured to implement any control method as described in the first aspect;

[0061] The control system comprises:

[0062] A prediction module configured to predict electricity price fluctuation information within a preset control period based on a preset electricity price prediction method, wherein the electricity price fluctuation information includes predicted electricity prices corresponding to different moments within the preset control period;

[0063] a time period determination module configured to determine a valley power period and a peak power period within the preset control period according to the electricity price fluctuation information, and use at least part of the valley power period and the peak power period as the target time;

[0064] a modeling module configured to construct an input gas pressure model corresponding to each gas consumer based on the network information of the gas transmission network and the input gas mass flow rate required by each gas consumer, wherein the input gas pressure model is used to describe the input gas pressure at the gas consumer when the gas supply end and the gas holder system respectively supply gas to the gas transmission network at different output gas pressures;

[0065] The control module is configured to determine, when any target time is reached, the input gas mass flow rate required by the gas tank system, the output gas mass flow rate of the gas tank system, and the output gas pressure of the gas tank system at the target time based on the input gas pressure model corresponding to each gas consumption end, the preset input gas pressure range corresponding to each gas consumption end, and the input gas mass flow rate required by each gas consumption end at the target time, and to control the gas tank system accordingly.

[0066] In a third aspect, an embodiment of the present disclosure further provides an electronic device, comprising:

[0067] one or more processors;

[0068] a memory for storing one or more programs;

[0069] When the one or more programs are executed by the one or more processors, the one or more processors implement the control method provided in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] FIG1 is a structural block diagram of the gas pipe network system involved in the present disclosure.

[0071] FIG2 is a flow chart of a control method applied to a gas pipe network system according to an embodiment of the present disclosure.

[0072] FIG3 is a flow chart of an optional implementation method of step S3 in an embodiment of the present disclosure.

[0073] FIG4 is a structural block diagram of a control system applied to a gas pipe network system provided by an embodiment of the present disclosure.

[0074] FIG5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0075] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0076] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "an" or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0077] In related technologies, by setting up a gas power generation system in a gas pipe network system, it can achieve resource recovery and reuse on the one hand, and effectively improve the economic benefits of steel enterprises on the other hand.

[0078] Another related technology proposes installing a gas tank system connected to the gas transmission network within a gas pipeline network. This gas tank system can obtain gas from the gas transmission network and store it, and can also deliver gas to the gas transmission network. However, in actual applications, it has been found that whether the gas tank system obtains gas from the gas transmission network or delivers gas to the gas transmission network is entirely determined by the worker based on the current stored gas level in the gas tank system. For example, when the stored gas level is low, the compression mechanism at the gas tank system's air inlet is controlled to operate and the gas outlet control mechanism at the gas tank system's air outlet is controlled to close. When the stored gas level is high, the compression mechanism at the gas tank system's air inlet is controlled to close and the gas outlet control mechanism at the gas tank system's air outlet is controlled to operate. Therefore, this control method of the related technology is relatively simple and cannot achieve automatic control.

[0079] In order to effectively improve at least one of the technical problems existing in the related art, the present disclosure provides a control method, a control system and an electronic device applied to a gas pipe network system.

[0080] FIG1 is a structural block diagram of the gas pipe network system involved in the present disclosure. FIG2 is a flow chart of a control method applied to a gas pipe network system provided by an embodiment of the present disclosure. As shown in FIG1 and FIG2, the gas pipe network system includes: a gas supply end, a gas transmission network, a gas tank system, and N gas consumption ends. The gas supply end is connected to the gas transmission network, the gas inlet of the gas tank system is connected to the gas transmission network through a configured compression mechanism, the gas outlet of the gas tank system is connected to the gas transmission network through a corresponding gas outlet control mechanism, the gas consumption end is connected to the gas transmission network, and at least one of the N gas consumption ends is a gas power generation system.

[0081] The gas supply terminal refers to a system that directly supplies gas to the gas transmission network. The gas generated during the steel production process (including but not limited to blast furnace gas, converter gas, and coke oven gas) is collected at the gas supply terminal and then, after pressure regulation and control by a pressure regulating mechanism (not shown) located there, is fed into the gas transmission network. By controlling the operating state of the pressure regulating mechanism, the input gas pressure at the gas supply terminal can be adjusted.

[0082] The above-mentioned gas-consuming end refers to a system that can obtain gas directly through the gas transmission pipeline network, such as the heating furnace and gas power generation system required by steel enterprises.

[0083] The gasholder system can be a large gasholder or a gasholder group consisting of multiple gasholders. The compression mechanism (e.g., a gas compressor) is a mechanism that can compress the gas transmission pipeline network into a liquid state and store it in the gasholder system. In addition, the mass flow rate of the input gas at the gas inlet of the gasholder system can be adjusted by controlling the operating state of the compression mechanism. The gas outlet control mechanism (e.g., a pressure regulating and flow regulating valve) is a mechanism that can output the high-pressure gas in the gasholder system to the gas transmission pipeline network. In addition, the mass flow rate of the output gas and the output gas pressure at the gas outlet can be adjusted by controlling the operating state of the gas outlet control mechanism.

[0084] The control method provided by the present disclosure includes:

[0085] Step S1: Predict electricity price fluctuation information within a preset control period based on a preset electricity price prediction method.

[0086] The electricity price fluctuation information includes the predicted electricity prices corresponding to different times within the preset control period.

[0087] In the disclosed embodiments, electricity price forecasting refers to the use of mathematical tools to analyze and study historical data, exploring the inherent connections and patterns of development and change between entities, and predicting future electricity transaction prices in the power market with a certain level of accuracy and speed, taking into account the influence of important factors such as market supply and demand, the market power of market participants, electricity costs, the power market system structure, and the socioeconomic situation. Electricity price is a core indicator that reflects the operation of the power market and evaluates the efficiency of market competition, and is the foundation of power market decision-making.

[0088] The technical solution of the present disclosure can use any existing electricity price prediction method to predict electricity price fluctuation information within a preset control period. For example, prediction methods based on influencing factor analysis (such as linear regression method, fuzzy clustering, comprehensive evaluation method, neural network method (such as BP neural network, wavelet neural network, RBF radial basis network)), time series method, econometrics-based prediction method, market equilibrium-based prediction method, combined prediction method, etc. The present disclosure does not limit the specific algorithm logic of the preset electricity price prediction method used in the present disclosure.

[0089] Step S2: Determine the valley power period and the peak power period within the preset control period according to the electricity price fluctuation information, and use at least part of the valley power period and the peak power period as the target time.

[0090] In view of the fact that electricity prices are low during off-peak periods and high during peak periods, the technical solution disclosed in the present invention determines off-peak periods and peak periods within a preset control period based on electricity price fluctuation information.

[0091] As an example, two electricity price thresholds are pre-designed according to actual conditions: a first electricity price threshold and a second electricity price threshold, wherein the first electricity price threshold is less than the second electricity price threshold. The first electricity price threshold and the second electricity price threshold are used to classify each moment in the electricity price fluctuation information, wherein the moment when the corresponding predicted voltage is less than or equal to the first electricity price threshold is a valley electricity moment, the moment when the corresponding predicted voltage is greater than the first electricity price threshold and less than the second electricity price threshold is a normal electricity moment, and the moment when the corresponding predicted voltage is greater than or equal to the second electricity price threshold is a peak electricity moment. At this time, multiple consecutive and adjacent valley electricity / normal electricity / peak electricity moments can form corresponding valley electricity / normal electricity / peak electricity time periods. Thus, valley electricity time periods, normal point time periods, and peak electricity time periods can be determined in the preset control period.

[0092] Step S3: constructing an input gas pressure model corresponding to each gas consumption end according to the network information of the gas transmission network and the input gas mass flow rate required by each gas consumption end.

[0093] The input gas pressure model describes the input gas pressure at the corresponding gas consumer when the gas supply and gasholder systems supply gas to the gas transmission network at different output gas pressures. Specifically, by inputting the output gas pressures of the gas supply and gasholder systems into the input gas pressure model for the corresponding gas consumer, the model can output the corresponding input gas pressure.

[0094] Step S4: When any target time is reached, the input gas mass flow rate, output gas mass flow rate, and output gas pressure of the gasholder system required by the gasholder system at the target time are determined based on the input gas pressure model corresponding to each gas consuming end, the preset input gas pressure range corresponding to each gas consuming end, and the input gas mass flow rate required by each gas consuming end at the target time, and the gasholder system is controlled accordingly.

[0095] In the embodiment of the present disclosure, considering that the electricity price during the off-peak period and the electricity price during the peak period will have a significant impact on the power generation income generated by the gas power generation system, the present disclosure can select at least part of the time during the off-peak period and the peak period as the target time, and when the target time is reached later, the input gas pressure model corresponding to each gas consuming end, the preset input gas pressure range corresponding to each gas consuming end, and the input gas mass flow required by each gas consuming end at the target time are used to determine the input gas mass flow required by the gas holder system at the target time, the output gas mass flow of the gas holder system, and the output gas pressure of the gas holder system, thereby achieving the purpose of automatically controlling the gas holder system. In addition, the technical solution of the present disclosure can also help to improve the power generation income of the gas power generation system to a certain extent by adjusting the gas holder system accordingly during the off-peak period and the peak period.

[0096] FIG3 is a flowchart of an optional implementation method of step S3 in an embodiment of the present disclosure. As shown in FIG3, in some embodiments, the pipeline network information includes: the resistance coefficient of each pipeline network unit included in the gas transmission pipeline network and the connection relationship between different pipeline network units. Optionally, step S3 includes:

[0097] Step S301: Determine the first gas transmission path and the second gas transmission path corresponding to each gas consumption end.

[0098] Among them, one end of the first gas transmission path is connected to the corresponding gas consumption end, the other end of the first gas transmission path is connected to the gas supply end, one end of the second gas transmission path is connected to the corresponding gas consumption end, and the other end of the second gas transmission path is connected to the gas tank system.

[0099] In this disclosure, a gasholder system can store gas through a gas transmission network (in which case the gasholder system can be considered a gas consumer) or input gas into the gas transmission network (in which case the gasholder system can be considered a gas supplier). In other words, in principle, a gasholder system can also supply gas to N gas consumers.

[0100] In the present disclosure, the first / second gas transmission pathway corresponding to the user end does not refer to a single gas pipeline, but rather refers to the collection of all pipelines through which the gas flows when the gas supply end or gas tank system transmits gas to the corresponding gas consumption end through the gas transmission network. In other words, a first / second gas transmission pathway may include one or more gas transmission paths (also referred to as "gas transmission branches"), and these gas transmission paths may be connected in series, parallel, or other forms. The technical solution of the present disclosure does not limit the number of gas transmission paths included in the first / second gas transmission pathway, the series-parallel relationship of each gas transmission branch, etc.

[0101] Step S302: For each gas consumption end corresponding to the first gas transmission path, the equivalent resistance coefficient of the first gas transmission path is determined based on the series-parallel relationship and resistance coefficient of each pipe network unit in the first gas transmission path; and for each gas consumption end corresponding to the second gas transmission path, the equivalent resistance coefficient of the second gas transmission path is determined based on the series-parallel relationship and resistance coefficient of each pipe network unit in the second gas transmission path.

[0102] In some embodiments, the gas transmission pathway is composed of pipe network units, which may include pipe fittings and pipelines. The pipe fittings may include elbows / elbows, reducers, tees, and valves. The resistance coefficient of the pipe network unit can be obtained by querying a pre-stored pipe network unit database (which records different pipe network units and their corresponding resistance coefficients), or by calculation based on parameter information of the pipe network unit.

[0103] As an example, the parameter information includes the size information, material information, and surface treatment information of different pipe network units. According to the material information and surface treatment information, the corresponding pipe surface roughness, i.e., the resistance coefficient, can be obtained. For example, as follows:

[0104] The resistance coefficient Rg of the pipeline can be obtained by the following formula:

[0105] The resistance coefficient Rw of the elbow can be obtained by the following formula:

[0106] The resistance coefficient Rj of the reducer can be obtained by the following formula:

[0107] ψ1=S1 / S0

[0108] The resistance coefficient Rs of the tee can be obtained by the following formula:

[0109] The resistance coefficient Rf of the valve can be obtained by the following formula:

[0110] In the above formula, λ is the pressure loss coefficient along the pipeline, D is the inner diameter of the pipeline unit, L is the length of the pipeline unit, ρ is the airflow density, ξ1, ξ3, and ξ4 are the given empirical values ​​of elbows, tees, and valves, respectively, L0 is the length of the reducer, D1 is the outlet diameter, and D0 is the inlet diameter.

[0111] For any gas transmission path, a calculation method similar to that used for circuits can be used to determine the equivalent resistance coefficient of the entire gas transmission path based on the series and parallel relationships of the pipeline network units in the gas transmission path and the resistance coefficient. This process can be used to treat each gas transmission path as a single gas transmission path, facilitating subsequent calculations.

[0112] As an example, the equivalent resistance coefficient of two pipe network units connected in series can be calculated using the following formula:

[0113] R'=R1+R2

[0114] The equivalent resistance coefficient of two parallel pipe network units can be calculated using the following formula:

[0115] Among them, R' is the equivalent resistance coefficient of the two pipe network units, and R1 and R2 are the resistance coefficients of the two pipe network units.

[0116] Similarly, based on the above formula, the equivalent resistance coefficient of three or more pipe network units connected in series and the equivalent resistance coefficient of three or more pipe network units connected in parallel can be calculated. This will not be repeated here.

[0117] Step S303: For each gas consumption end, construct an input gas pressure model corresponding to the gas consumption end based on the equivalent resistance coefficient of the first gas transmission path corresponding to the gas consumption end, the equivalent resistance coefficient of the second gas transmission path corresponding to the gas consumption end, the input gas pressure required by the gas consumption end, the output gas pressure of the gas supply end, and the output gas pressure of the gas tank system.

[0118] Among them, the input gas pressure model corresponding to the i-th gas consumption end is expressed as follows:

[0119] P i =P0-m i 2 *R i +P0'-m i 2 *R i '

[0120] P0 represents the output gas pressure of the gas supply end, P0' represents the output gas pressure of the gas tank system, m i represents the input gas mass flow rate required by the i-th gas consumption end, R i R represents the equivalent resistance coefficient of the first gas transmission path corresponding to the i-th gas consumption end. i ' represents the equivalent resistance coefficient of the second gas transmission path corresponding to the i-th gas consumption end, P i It represents the input gas pressure corresponding to the i-th gas consumption end when the output gas pressure of the gas supply end is P0 and the output gas pressure of the gas tank system is P0', i∈[1,N].

[0121] In the above input gas pressure model, R i 、R i ' and m i When both are determined, the corresponding P can be calculated based on the given P0 and P0'. i .

[0122] In some embodiments, the target time includes: the start time of the valley power period; in this case, step S4 may include:

[0123] Step S401a: When the off-peak period starts, the gas outlet control mechanism at the gas outlet of the gas holder system is controlled to be closed, and the output gas mass flow rate and the output gas pressure of the gas holder system are determined to be 0.

[0124] Step S402a: Control the gas supply end to increase the output gas pressure.

[0125] The output gas pressure P0 of the gas supply end adjusted in step S402a satisfies: P0>Ps, and the input gas pressure P obtained by the corresponding input gas pressure model for any i-th gas consumption end is i They are all within the preset input gas pressure range corresponding to the i-th gas consumption end, where Ps is the preset output gas pressure reference value of the gas supply end (also the configured output gas pressure of the gas supply end during normal power period).

[0126] Step S403a: Determine the input gas mass flow rate required by the gas holder system at the current moment based on the output gas mass flow rate of the gas supply end at the current moment, the output gas pressure of the gas supply end at the current moment, the input gas mass flow rate required by each gas consumer, and the preset input gas pressure range corresponding to the gas holder system.

[0127] The input gas mass flow rate m0″ of the gas cabinet system at the current moment determined in step S403a satisfies the following formula:

[0128] P0"=P0-m0"*m0"*R0 and P0"∈[P0"_min,P0"_max]…(2)

[0129] Where m0 represents the output gas mass flow rate of the gas supply end at the current moment, R0 represents the equivalent resistance coefficient of the gas transmission path connecting the gas supply end to the gas inlet of the gas holder system, P0” represents the input gas pressure of the gas holder system at the current moment, and P0”_min and P0”_max respectively represent the lower and upper limits of the preset input gas pressure range corresponding to the gas holder system.

[0130] Step S404a: Adjust the working state of the compression mechanism configured at the gas inlet of the gas holder system so that the input gas mass flow rate at the gas inlet of the gas holder system is the input gas mass flow rate determined in step S403a, so as to store gas in the gas holder system.

[0131] In some embodiments, the target time further includes: at least one target valley power time that is within the valley power period and after the start time.

[0132] Step S4 also includes:

[0133] Step S405a: When any target valley power moment is reached within the valley power period, it is determined whether the currently stored gas tank level of the gas tank system is greater than or equal to a preset peak-valley regulation tank level upper limit threshold.

[0134] If yes, then execute step S406a. If no, then execute steps S403a and S404a again.

[0135] Step S406a: Control the compression mechanism configured at the gas inlet of the gas holder system to be in a closed state to stop storing gas in the gas holder system.

[0136] In the disclosed embodiment, during off-peak periods, the gas outlet control mechanism at the gasholder system's gas outlet is controlled to shut down, ensuring that the gasholder system does not supply gas to the gas transmission network during off-peak periods. During off-peak periods, the gasholder system stores gas through the gas inlet and stops storing gas when it detects that the current stored gas level in the gasholder system is greater than or equal to the preset peak-offset regulation upper limit. This is because electricity prices are relatively low during off-peak periods, and the economic benefits of power generation from the gas-fired power generation system are relatively low during these periods.

[0137] In addition, by increasing the output gas pressure of the gas supply end at the initial moment of entering the off-peak period, the gas pressure at various locations in the gas transmission pipeline network (including the gas inlet of the gas tank system) can be increased, which is beneficial to the gas storage of the gas tank system.

[0138] In addition, the above formula (1) is to ensure that the gas supply in the gas transmission pipeline network meets the gas demand; formula (2) is to ensure that the input gas pressure at the gas inlet of the gas tank system can be within the preset input gas pressure range corresponding to the gas tank system (to ensure that the gas can be safely compressed into liquid and stored in the gas tank system).

[0139] In some embodiments, the target time includes: the start time of the peak power period. In this case, step S4 may include:

[0140] Step S401b: When the peak power period starts, the compression mechanism configured at the gas inlet of the gas holder system is controlled to be in a closed state, and the required input gas mass flow rate of the gas holder system is determined to be 0.

[0141] Step S402b: Control the gas supply end to lower the output gas pressure. The adjusted output gas pressure of the gas supply end is P0, where P0<Ps.

[0142] Step S403b: Determine the output gas mass flow and output gas pressure of the gas tank system at the current moment based on the output gas mass flow and output gas pressure of the gas supply end at the current moment and the input gas mass flow required by each gas consumption end.

[0143] The output gas pressure P0 of the gas supply end adjusted in step S402b, and the output gas mass flow m0' and output gas pressure P0' of the gas holder system at the current moment determined in step S403b satisfy the following formula:

[0144] Pi =P0-m i 2 *R i +P0'-m i 2 *R i 'And P i ∈[P i _min,P i _max]…(4)

[0145] Among them, P i _min and P i _max respectively represent the lower limit and upper limit of the preset input gas pressure range corresponding to the i-th gas consumption end.

[0146] Step S404b: Adjust the working state of the gas outlet control mechanism at the gas outlet of the gas holder system so that the output gas mass flow rate and output gas pressure at the gas outlet of the gas holder system are respectively the output gas mass flow rate and output gas pressure determined in step S403b.

[0147] In some embodiments, the target time further includes: at least one target peak time that is within the peak power period and after the start time. In this case, step S4 further includes:

[0148] Step S405b: When any target peak power moment within the peak power period is reached, it is determined whether the currently stored gas tank level of the gas tank system is less than or equal to a preset peak-valley regulation tank level lower limit threshold.

[0149] If yes, then execute step S406b. If no, then execute step S403b and step S404b again.

[0150] Step S406b: Control the gas outlet control mechanism at the gas outlet of the gas holder system to be in a closed state to stop outputting gas to the gas holder system.

[0151] In the disclosed embodiment, the compression mechanism at the gas inlet of the gasholder system is controlled to close during peak power periods to ensure that the gasholder system does not store gas through the gas transmission network during peak power periods. During peak power periods, the gasholder system supplies gas to the gas transmission network through the gas outlet and stops supplying gas when it detects that the current stored gas level in the gasholder system is less than or equal to the preset peak-valley regulation level lower threshold. This is because electricity prices are relatively high during peak power periods, and the economic benefits generated by the gas power generation system are relatively high at this time. The gasholder system supplies gas to the gas pipeline system, which can ensure the efficient operation of the gas power generation system.

[0152] In addition, by increasing the output gas pressure of the gas supply end at the initial moment of entering the off-peak period, the gas pressure at various locations in the gas transmission pipeline network (including the gas inlet of the gas tank system) can be increased, which is beneficial to the gas storage of the gas tank system.

[0153] In addition, the above formula (3) is to ensure that the gas supply in the gas transmission network meets the gas demand; formula (4) is to ensure that the input gas pressure of each gas consumption end can be within the corresponding preset input gas pressure range (to ensure that each gas consumption end can safely use gas).

[0154] In some embodiments, at the start of the peak power period and before step S403b, the method further includes:

[0155] Step S40bb: Control the gas power generation system to increase the power generation per unit time, and increase the input gas mass flow rate required by the gas power generation system.

[0156] Accordingly, step S4 further includes:

[0157] Step S407b: When the peak power period ends, the gas power generation system is controlled to reduce the power generation per unit time to a preset power generation reference value, and the input gas mass flow required by the gas power generation system is reduced.

[0158] During peak power periods, since the gas tank system is also supplying gas, it can, to a certain extent, increase the input gas mass flow required by the gas power generation system, and accordingly increase the power generation of the gas power generation system per unit time, thereby increasing the economic benefits generated by the gas power generation system.

[0159] In some embodiments, the control method provided by the embodiments of the present disclosure further includes the following steps S5 to S9.

[0160] Step S5: When the normal power period starts, the output gas intensity P0 of the gas supply end is controlled to be equal to Ps, where Ps is a preset reference value of the output gas pressure of the gas supply end.

[0161] Step S6: When reaching any target normal power moment within the normal power period, compare the output gas mass flow m0 of the gas supply end at the current moment with the sum of the input gas mass flow required by all gas consumption ends. The size of the two.

[0162] like Then execute step S7; if Then execute step S8; if Then execute step S9.

[0163] Step S7: Control the working states of the compression mechanism at the gas inlet and the gas outlet control mechanism at the gas outlet of the gas holder system respectively, and make the input gas mass flow rate at the gas inlet of the gas holder system greater than the output gas mass flow rate at the gas outlet of the gas holder system.

[0164] At this time, the compression mechanism may be in working state and the gas outlet control mechanism may be in closed state (the output gas mass flow rate at the gas outlet is 0); or both the compression mechanism and the gas outlet control mechanism may be in working state, and the input gas mass flow rate at the gas inlet is greater than the output gas mass flow rate at the gas outlet.

[0165] Step S8: Control the working states of the compression mechanism at the gas inlet and the gas outlet control mechanism at the gas outlet of the gas holder system respectively, and make the input gas mass flow rate at the gas inlet of the gas holder system equal to the output gas mass flow rate at the gas outlet of the gas holder system.

[0166] At this time, the compression mechanism and the gas outlet control mechanism may both be in a closed state (the input gas mass flow rate at the air inlet and the output gas mass flow rate at the air outlet are both 0); or the compression mechanism and the gas outlet control mechanism may both be in a working state, and the input gas mass flow rate at the air inlet is equal to the output gas mass flow rate at the air outlet.

[0167] Step S9: Control the working states of the compression mechanism at the gas inlet and the gas outlet control mechanism at the gas outlet of the gas holder system respectively, and make the input gas mass flow rate at the gas inlet of the gas holder system smaller than the output gas mass flow rate at the gas outlet of the gas holder system.

[0168] At this time, the compression mechanism may be in a closed state (the input gas mass flow rate at the air inlet is 0) and the air outlet control mechanism may be in a working state; or both the compression mechanism and the air outlet control mechanism may be in a working state, and the input gas mass flow rate at the air inlet is less than the output gas mass flow rate at the air outlet.

[0169] In this embodiment, step S4 regulates the gas pipeline network during off-peak and peak periods to improve the overall economic benefits of the gas-fired power generation system. Steps S5 through S9 regulate the gas pipeline network during normal power periods to ensure the supply and demand relationship of the gas transmission network. The gas tank system in this disclosure combines gas pipeline network regulation with energy storage.

[0170] Based on the same inventive concept, the embodiments of the present disclosure also provide a control system for a gas pipeline network system. Figure 4 is a block diagram of a structure of the control system for a gas pipeline network system provided by the embodiments of the present disclosure. As shown in Figure 4, the relevant description of the gas pipeline network system can be found in the content of the previous embodiments and will not be repeated here. The control system in the embodiments of the present disclosure can implement the control method provided by the previous embodiments. The control system includes: a prediction module, a time period determination module, a modeling module, and a control module.

[0171] The prediction module is configured to predict electricity price fluctuation information within a preset control period based on a preset electricity price prediction method. The electricity price fluctuation information includes predicted electricity prices corresponding to different moments within the preset control period.

[0172] The time period determination module is configured to determine the valley power period and the peak power period within the preset control period according to the electricity price fluctuation information, and use at least part of the time in the valley power period and the peak power period as the target time.

[0173] The modeling module is configured to construct an input gas pressure model corresponding to each gas consumption end based on the pipeline information of the gas transmission pipeline network and the input gas mass flow rate required by each gas consumption end. The input gas pressure model is used to describe the input gas pressure at the corresponding gas consumption end when the gas supply end and the gas tank system respectively supply gas to the gas transmission pipeline network with different output gas pressures.

[0174] The control module is configured to determine, when any target time is reached, the input gas mass flow rate required by the gas tank system, the output gas mass flow rate of the gas tank system, and the output gas pressure of the gas tank system at the target time based on the input gas pressure model corresponding to each gas consumption end, the preset input gas pressure range corresponding to each gas consumption end, and the input gas mass flow rate required by each gas consumption end at the target time, and to control the gas tank system accordingly.

[0175] For the detailed description of the above modules, please refer to the contents of the previous embodiments, which will not be repeated here.

[0176] Based on the same inventive concept, an embodiment of the present disclosure further provides an electronic device. Figure 5 is a structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in Figure 5, an embodiment of the present disclosure provides an electronic device including: one or more processors 101, a memory 102, and one or more I / O interfaces 103. One or more programs are stored on the memory 102. When the one or more programs are executed by the one or more processors, the one or more processors implement any of the control methods in the above embodiments; one or more I / O interfaces 103 are connected between the processor and the memory, and are configured to implement information interaction between the processor and the memory.

[0177] Among them, the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH); the I / O interface (read-write interface) 103 is connected between the processor 101 and the memory 102, and can realize information interaction between the processor 101 and the memory 102, including but not limited to a data bus (Bus), etc.

[0178] In some embodiments, the processor 101 , the memory 102 , and the I / O interface 103 are connected to each other via a bus 104 , and further connected to other components of the computing device.

[0179] In some embodiments, the one or more processors 101 include a field programmable gate array.

[0180] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A regulation method applied to a gas pipeline network system, characterized in that The gas pipeline network system includes: a gas supply end, a gas transmission pipeline network, a gas holder system, and N gas consumption ends. The gas supply end is connected to the gas transmission pipeline network. The inlet of the gas holder system is connected to the gas transmission pipeline network through a configured compression mechanism. The outlet of the gas holder system is connected to the gas transmission pipeline network through a corresponding outlet control mechanism. The gas consumption ends are connected to the gas transmission pipeline network. At least one of the N gas consumption ends is a gas power generation system; The regulation method includes: Step S1: Predict the electricity price fluctuation information within a preset regulation period based on a preset electricity price prediction method. The electricity price fluctuation information includes the predicted electricity prices corresponding to different moments within the preset regulation period; Step S2: Determine the valley electricity period and the peak electricity period within the preset regulation period according to the electricity price fluctuation information, and use at least some of the moments in the valley electricity period and the peak electricity period as target moments; Step S3: Construct an input gas pressure model corresponding to each gas consumption end according to the pipeline network information of the gas transmission pipeline network and the input gas mass flow required by each gas consumption end. The input gas pressure model is used to describe the input gas pressure at the gas consumption end when the gas supply end and the gas holder system supply gas to the gas transmission pipeline network at different output gas pressures respectively; Step S4: When any one of the target moments arrives, determine the input gas mass flow, the output gas mass flow, and the output gas pressure of the gas holder system at the target moment according to the input gas pressure model corresponding to each gas consumption end, the preset input gas pressure range corresponding to each gas consumption end, and the input gas mass flow required by each gas consumption end at the target moment, and perform corresponding control on the gas holder system.

2. The regulation method according to claim 1, wherein The pipeline network information includes: the resistance coefficients of each pipeline network unit included in the gas transmission pipeline network and the connection relationship between different pipeline network units; Step S3 includes: Step S301: Determine the first gas transmission path and the second gas transmission path corresponding to each gas consumption end. One end of the first gas transmission path is connected to the corresponding gas consumption end, and the other end of the first gas transmission path is connected to the gas supply end. One end of the second gas transmission path is connected to the corresponding gas consumption end, and the other end of the second gas transmission path is connected to the gas holder system; Step S302: For the first gas transmission path corresponding to each gas consumption end, determine the equivalent resistance coefficient of the first gas transmission path according to the series-parallel relationship and the resistance coefficient of each pipeline network unit in the first gas transmission path, and for the second gas transmission path corresponding to each gas consumption end, determine the equivalent resistance coefficient of the second gas transmission path according to the series-parallel relationship and the resistance coefficient of each pipeline network unit in the second gas transmission path; Step S303: For each of the gas-consuming ends, construct an input gas pressure model corresponding to the gas-consuming end according to the equivalent resistance coefficient of the first gas transmission path corresponding to the gas-consuming end, the equivalent resistance coefficient of the second gas transmission path corresponding to the gas-consuming end, the required input gas pressure of the gas-consuming end, the output gas pressure of the gas supply end, and the output gas pressure of the gas holder system. Among them, the input gas pressure model corresponding to the i-th gas-consuming end is expressed as follows: P i = P0 - m i 2 * R i + P0' - m i 2 * R i ' P0 represents the output gas pressure of the gas supply end, P0’ represents the output gas pressure of the gasholder system, m i represents the input gas mass flow rate required by the i-th gas consumption end, R i represents the equivalent resistance coefficient of the first gas transmission path corresponding to the i-th gas consumption end, R i ’ represents the i-th The equivalent resistance coefficient of the second gas transmission path corresponding to the gas consumption end, P i Indicates the input gas pressure corresponding to the i-th gas consumption end when the output gas pressure at the gas supply end is P0 and the output gas pressure of the gas holder system is P0', where i ∈ [1, N].

3. The regulation method according to claim 2, characterized in that The target time includes: the starting time of the valley electricity period; Step S4 includes: Step S401a: When reaching the starting time of the valley electricity period, control the gas outlet control mechanism at the gas outlet of the gas holder system to close, and determine that the output gas mass flow rate of the gas holder system is 0 and the output gas pressure of the gas holder system is 0. Step S402a: Control the gas supply end to increase the output gas pressure. Among them, the output gas pressure P0 of the air supply end adjusted through step S402a satisfies: P0 > Ps, and for any i-th gas consumption end, the input gas pressure P obtained through the corresponding input gas pressure model i is located within the preset input gas pressure range corresponding to the i-th gas consumption end, where Ps is the preset output gas pressure reference value of the air supply end; Step S403a: According to the output gas mass flow rate of the gas supply end at the current time, the output gas pressure of the gas supply end at the current time, the required input gas mass flow rates of each gas-consuming end, and the preset input gas pressure range corresponding to the gas holder system, determine the required input gas mass flow rate of the gas holder system at the current time. Among them, the input gas mass flow rate m0” of the gas holder system determined at the current moment through step S403a satisfies the following formula: P0" = P0 - m0" * m0" * R0 and P0" ∈ [P0"_min, P0"_max] Among them, m0 represents the output gas mass flow rate of the gas supply end at the current time, R0 represents the equivalent resistance coefficient of the gas transmission path connecting the gas supply end to the gas inlet of the gas holder system, P0” represents the input gas pressure of the gas holder system at the current time, and P0”_min and P0”_max respectively represent the lower limit value and the upper limit value of the preset input gas pressure range corresponding to the gas holder system. Step S404a: Adjust the working state of the compression mechanism configured at the gas inlet of the gas holder system so that the input gas mass flow rate at the gas inlet of the gas holder system is the input gas mass flow rate determined in Step S403a, so as to store gas in the gas holder system.

4. The regulation method according to claim 3, characterized in that, The target time also includes: at least one target valley electricity time within the valley electricity period and after the starting time; In Step S4, it also includes: Step S405a: When reaching any target valley electricity time within the valley electricity period, judge whether the currently stored gas holder level of the gas holder system is greater than or equal to the preset peak-valley adjustment gas holder level upper threshold. If so, execute Step S406a; if not, execute Step S403a and Step S404a again. Step S406a: Control the compression mechanism configured at the gas inlet of the gas holder system to be in a closed state to stop storing gas in the gas holder system.

5. The regulation method according to claim 3, wherein The target time includes: the starting time of the peak electricity period; Step S4 includes: Step S401b: When reaching the starting time of the peak electricity period, control the compression mechanism configured at the gas inlet of the gas holder system to be in a closed state, and determine that the required input gas mass flow rate of the gas holder system is 0. Step S402b: Control the gas supply end to lower the output gas pressure. The output gas pressure of the adjusted gas supply end is P0, where P0 < Ps, and Ps is the preset reference value of the output gas pressure of the gas supply end. Step S403b: Determine the output gas mass flow rate and output gas pressure of the gas holder system at the current moment based on the output gas mass flow rate of the gas supply end at the current moment, the output gas pressure of the gas supply end at the current moment, and the input gas mass flow rates required by each gas consumption end. Among them, the output gas pressure P0 of the adjusted gas supply end in step S402b, and the output gas mass flow rate m0' and output gas pressure P0' of the gas holder system determined in step S403b satisfy the following formula: P i = P0 - m i 2 * R i + P0' - m i 2 * R i ' and P i ∈ [P i _min, P i _max] where P i _min and P i _max respectively represent the lower limit value and the upper limit value of the preset input gas pressure range corresponding to the i-th gas consumption end; Step S404b: Adjust the working state of the gas outlet control mechanism at the gas outlet of the gas holder system so that the output gas mass flow rate and output gas pressure at the gas outlet of the gas holder system are respectively the output gas mass flow rate and output gas pressure determined in Step S403b.

6. The regulation method according to claim 5, wherein Before Step S403b and at the starting moment of the peak power period, it further includes: Step S40bb: Control the gas power generation system to increase the power generation per unit time, and the required input gas mass flow rate of the gas power generation system increases. And it further includes: Step S407b: At the end moment of the peak power period, control the gas power generation system to lower the power generation per unit time to the preset reference power generation value, and the required input gas mass flow rate of the gas power generation system decreases.

7. The regulation method according to claim 5, characterized in that The target moment further includes: at least one target peak power moment within the peak power period and after the starting moment. In Step S4, it further includes: Step S405b: At any target peak power moment within the peak power period, determine whether the current stored gas holder level of the gas holder system is less than or equal to the preset lower threshold of the peak-valley regulation gas holder level. If so, execute Step S406b; if not, execute Step S403b and Step S404b again. Step S406b: Control the gas outlet control mechanism at the gas outlet of the gas holder system to be in the closed state to stop supplying gas to the gas holder system.

8. The regulation method according to any one of claims 2 to 7, characterized in that, When determining the valley power period and peak power period within the preset regulation period according to the electricity price fluctuation information in Step S2, the normal power period within the preset regulation period is also determined. The regulation method further includes: Step S5: At the starting moment of the normal power period, control the output gas intensity P0 of the gas supply end to be equal to Ps, where Ps is the preset reference value of the output gas pressure of the gas supply end. Step S6, at any target normal power supply time within the normal power supply period, compare the output gas mass flow rate m0 of the gas supply end at the current time with the total input gas mass flow rate required by all gas consumption ends The magnitudes of the two. If Then, step S7 is executed; if Then perform step S8; if Then execute Step S9. Step S7: Control the working states of the compression mechanism at the gas inlet of the gas holder system and the gas outlet control mechanism at the gas outlet respectively, and make the input gas mass flow rate at the gas inlet of the gas holder system greater than the output gas mass flow rate at the gas outlet of the gas holder system. Step S8: Control the working states of the compression mechanism at the gas inlet of the gas holder system and the gas outlet control mechanism at the gas outlet respectively, and make the input gas mass flow rate at the gas inlet of the gas holder system equal to the output gas mass flow rate at the gas outlet of the gas holder system. Step S9: Control the working states of the compression mechanism at the inlet of the gas holder system and the gas outlet control mechanism at the outlet respectively, and make the mass flow rate of the input gas at the inlet of the gas holder system less than the mass flow rate of the output gas at the outlet of the gas holder system.

9. A control system applied to a gas pipeline network system, characterized in that, The gas pipeline network system includes: a gas supply end, a gas transmission pipeline network, a gas holder system, and N gas consumption ends. The gas supply end is connected to the gas transmission pipeline network. The inlet of the gas holder system is connected to the gas transmission pipeline network through the configured compression mechanism. The outlet of the gas holder system is connected to the gas transmission pipeline network through the corresponding gas outlet control mechanism. The gas consumption ends are connected to the gas transmission pipeline network. At least one of the N gas consumption ends is a gas power generation system. The regulation system is configured to be able to implement the regulation method as described in any one of claims 1 to 8. The regulation system includes: A prediction module, configured to predict the electricity price fluctuation information during a preset regulation period based on a preset electricity price prediction method. The electricity price fluctuation information includes the predicted electricity prices corresponding to different moments during the preset regulation period. A time period determination module, configured to determine the valley electricity period and the peak electricity period during the preset regulation period according to the electricity price fluctuation information, and use at least some of the moments in the valley electricity period and the peak electricity period as target moments. A modeling module, configured to construct an input gas pressure model corresponding to each gas consumption end according to the pipeline network information of the gas transmission pipeline network and the mass flow rate of the input gas required by each gas consumption end. The input gas pressure model is used to describe the input gas pressure at the gas consumption end when the gas supply end and the gas holder system supply gas to the gas transmission pipeline network at different output gas pressures respectively. A regulation module, configured to, when any one of the target moments arrives, determine the mass flow rate of the input gas required by the gas holder system, the mass flow rate of the output gas of the gas holder system, and the output gas pressure of the gas holder system at the target moment according to the input gas pressure model corresponding to each gas consumption end, the preset input gas pressure range corresponding to each gas consumption end, and the mass flow rate of the input gas required by each gas consumption end at the target moment, and perform corresponding control on the gas holder system.

10. An electronic device, wherein, It includes: One or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the regulation method as described in any one of claims 1 to 8.

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