CN117852217A - Method and device for planning injection, production and storage of gas storage and/or gas transmission of pipe section - Google Patents
Method and device for planning injection, production and storage of gas storage and/or gas transmission of pipe section Download PDFInfo
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Abstract
The invention discloses a method and a device for making injection, production and storage of a gas storage and/or gas transmission plans of pipe sections. Determining a month demand and an air supply amount for a preset period based on the month air consumption and the air supply amount for the history period; constructing flow balance conditions based on the topological structure of the natural gas pipe network system; the natural gas supply cost is minimized in a preset period, the flow balance condition is taken as a constraint, and a gas distribution model is constructed by combining the monthly demand and the gas supply in the preset period; and according to the model, the monthly gas injection and production gas storage quantity of the gas storage and the monthly gas transmission quantity of the pipe section are obtained. The invention comprehensively considers the mutual influence of the gas storage, resources, users and pipe networks, so that the formulated injection-production gas storage scheduling plan can fully exert the peak regulation capability of the gas storage, the capability of coping with the regular change of gas supply of a gas source and gas consumption of the users is greatly improved, and the technical problems that the conventional planning period is long, the efficiency is low, the peak regulation capability of the gas storage is not fully exerted, and the surrounding pipe networks are not considered in peak regulation are solved.
Description
Technical Field
The invention relates to the technical field of natural gas pipe network energy management and control, in particular to a method and a device for making injection, production and storage of a gas storage and/or gas transmission planning of a pipe section.
Background
Along with the rapid development of the natural gas industry, the method has important significance for making up the gas injection amount, the gas production amount and the gas storage volume scheduling plan of the gas storage in order to better adapt to the change of the gas demand of users and fully playing the gas storage peak regulation capacity, and keeping the stable supply of the natural gas.
In the process of implementing the disclosed concept, the inventor finds that at least the following technical problems exist in the related art: for the scheme of planning based on personal experience or simulation software by manpower, only the mutual influence of resources, users and pipe networks in natural gas supply and the mutual coordination relation between each gas storage and pipe networks are not considered, the peak regulation capacity of the gas storage cannot be fully exerted, the efficiency of manual planning is extremely low, even if modeling simulation is carried out by using software, the efficiency is low and the practicability is poor due to high complexity and long time consumption of the process, and for the scheme of taking the mutual influence of the gas storage and the pipe networks into consideration, the scheme of manually planning the injection and production of the gas storage still depends on the manpower, so that the efficiency is low, and particularly when the fluctuation of gas load of the users is large, the peak regulation capacity of each gas storage is difficult to be exerted, and the safety and the high-efficiency gas supply of natural gas are further influenced.
Accordingly, there is a need to provide an improved method for planning injection and production of gas storage in order to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a method for constructing an air quantity distribution model and solving and obtaining the monthly gas injection and production air quantity (gas injection quantity, air production quantity and air storage quantity) of an air storage and the monthly air transmission quantity of a pipe section based on historical data of gas consumption and air supply. The problems that a gas storage peak regulation enterprise has long period for monthly gas injection, gas production and gas storage scheme making, weak capability for coping with gas supply of a gas source and gas regulation change of a user, and the like are solved, and peripheral pipe network peak regulation is not considered are solved, so that the gas storage peak regulation operation rule is accurately mastered, the gas storage quantity change condition of a gas storage is rapidly mastered, and the gas storage peak regulation safety is ensured.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a method of gas storage injection and production and/or pipe section gas delivery planning, the method comprising:
determining the month demand and the month air supply in a preset time period according to the month air consumption and the month air supply in the historical time period;
constructing flow balance conditions based on the topological structure of the natural gas pipe network system;
the natural gas supply cost is minimized in a preset time period as a target, the flow balance condition is taken as a constraint, and a gas distribution model is built by combining the month demand and month gas supply in the preset time period;
And according to the gas distribution model, the monthly gas injection and production capacity of the gas storage and/or the monthly gas transmission capacity of the pipe section in a preset time period are obtained, so that the establishment of a monthly gas injection and production plan of the gas storage and/or a monthly gas transmission plan of the pipe section is completed.
As a further improvement of the present invention, the determining the month demand amount and the month supply amount in the preset period of time based on the month gas consumption amount and the month supply amount in the history period of time includes:
determining a historical month gas use non-uniformity coefficient and a historical month gas supply non-uniformity coefficient in a historical time period according to month gas consumption and month gas supply in the historical time period;
according to the historical moon gas non-uniformity coefficient and the historical moon gas non-uniformity coefficient, respectively determining the moon gas non-uniformity coefficient and the moon gas non-uniformity coefficient in a preset time period;
and determining the month demand and the month air supply in the preset time period by combining the year demand and the year air supply in the preset time period according to the month air consumption non-uniformity coefficient and the month air supply non-uniformity coefficient in the preset time period.
As a further improvement of the present invention, the determining the historical month gas use unevenness coefficient and the historical month gas supply unevenness coefficient in the historical period according to the month gas use amount and the month gas supply amount in the historical period includes:
According to the monthly gas consumption in the historical time period, calculating a historical monthly gas consumption non-uniformity coefficient according to the following formula:
wherein x is i,j A gas use non-uniformity coefficient representing the jth month of the ith year in the history period; q i,j Representing the gas consumption of the ith year, the jth month in the historical time period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
according to the month air supply quantity in the historical time period, calculating the historical month air supply non-uniformity coefficient by the following formula:
wherein y is i,j A non-uniformity coefficient of air supply representing the jth month of the ith year in the history period; p is p i,j Representing the jth of the ith year in the history periodThe amount of air supplied for the month; d, d i,j Represents the number of days of month j of the i-th year in the history period.
As a further improvement of the present invention, determining the month demand and month supply amount in the preset time period in combination with the year demand and year supply amount in the preset time period according to the month air consumption unevenness coefficient and month supply unevenness coefficient in the preset time period includes:
according to the moon gas non-uniformity coefficient in the preset time period and the annual demand in the preset time period, when determining the moon demand in the preset time period, the calculation formula is as follows:
in which Q i The gas consumption of the ith year in a preset time period is represented; w (w) i,j The air consumption of the ith year, the jth month in the preset time period is represented; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; z i,j The gas non-uniformity coefficient of the ith year, the jth month in the preset time period is represented;
when determining the month air supply quantity in the preset time period according to the month air supply non-uniformity coefficient in the preset time period and the year air supply quantity in the preset time period, the calculation formula is as follows:
wherein G is i Indicating the air supply amount of the ith year in the preset time period; g i,j Indicating the air supply amount of the ith year, the jth month in the preset time period; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; r is (r) i,j And the non-uniformity coefficient of air supply of the ith year and the jth month in the preset time period is represented.
As a further improvement of the invention, the topology of the natural gas pipe network system comprises nodes and pipe sections between the nodes, wherein the nodes comprise gas storage nodes, station nodes, gas source nodes and user nodes.
As a further improvement of the present invention, the flow balance condition includes: the moon flow balance condition of the pipe section, the gas storage node and the station node; wherein,
the moon flow balance condition of the pipe section is as follows:
In the method, in the process of the invention,representing the flow rate of the fluid flowing into the jth pipe section in the t month; />Representing the flow rate of the jth pipe section flowing out of the jth pipe section; />The self-consumption of the jth pipe section in the t month is shown;
the monthly flow balance condition of the gas storage nodes is as follows:
in the method, in the process of the invention,the gas injection quantity of the nth gas storage in the t month is represented; />Representing the gas production amount of the nth gas storage in the t month; />The self-consumption of the nth gas storage in the t month is shown; />The gas storage variation of the nth gas storage in the t month is represented;
the moon flow balance condition of the station node is as follows:
in the method, in the process of the invention,representing the flow of the t month into the kth station node; />Indicating traffic flowing out of the kth station node in the t month.
As a further improvement of the present invention, the objective of minimizing the natural gas supply cost for a preset period of time includes:
the following objective function is constructed:
wherein C is min Representing that the sum of the total supply costs for the next M months is lowest;indicating the air supply amount of the ith air source of the t month; />Representing the air supply cost of the ith air source in the t month; />The gas transmission quantity of the jth pipe section in the t month is represented; />The gas transmission cost of the jth pipe section in the t month is represented; />Representing the gas injection and production amount of the nth gas storage in the t month; />The gas injection and production cost of the nth gas storage in the t month is represented; / >Representing the gas storage amount of the nth gas storage in the t month;and the gas storage cost of the nth gas storage in the t month is represented.
As a further improvement of the present invention, the method further comprises:
according to the acquired monthly gas injection and production capacity of the gas storage and the monthly gas transmission capacity of the pipe section in the preset time period, calculating annual gas injection, gas production and gas storage plans of the gas storage and annual gas transmission plans of the pipe section according to the following formulas:
annual gas injection schedule = Σmonthgas injection amount of gas storage;
annual gas production plan of gas storage = Σmonthgas production;
annual gas storage plan for gas storage = annual last month gas storage amount-annual initial month gas storage amount;
pipe section annual gas delivery schedule = Σmonthgas delivery volume.
The invention also provides a device for planning injection, production and storage of the gas storage and/or gas transportation of the pipe section, which comprises:
the determining module is used for determining the month demand and the month air supply in a preset time period according to the month air consumption and the month air supply in the historical time period;
the first construction module is used for constructing flow balance conditions according to the topological structure of the natural gas pipe network system;
the second construction module is used for constructing an air quantity distribution model by taking the natural gas supply cost in a preset time period as a target and taking the flow balance condition as a constraint and combining the monthly demand and the monthly air supply in the preset time period;
And the model solving module is used for solving the monthly gas injection and production storage capacity of the gas storage and/or the monthly gas transmission capacity of the pipe section in a preset time period according to the gas distribution model.
As a further improvement of the present invention, the determining module includes:
a first determining unit configured to determine a historical month gas consumption unevenness coefficient and a historical month gas supply unevenness coefficient in a historical period according to a month gas consumption and a month gas supply amount in the historical period;
a second determining unit, configured to determine a moon gas non-uniformity coefficient and a moon gas non-uniformity coefficient in a preset time period according to the historical moon gas non-uniformity coefficient and the historical moon gas non-uniformity coefficient, respectively;
and the third determining unit is used for determining the month demand and the month air supply quantity in the preset time period according to the month air consumption non-uniformity coefficient and the month air supply non-uniformity coefficient in the preset time period and combining the year demand and the year air supply quantity in the preset time period.
As a further improvement of the present invention, the first determination unit calculates the historical month gas use unevenness coefficient from the month gas use amount in the historical period by the following formula:
wherein x is i,j A gas use non-uniformity coefficient representing the jth month of the ith year in the history period; q i,j Representing the gas consumption of the ith year, the jth month in the historical time period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
the first determination unit calculates a historical month air supply unevenness coefficient from the month air supply amount in the historical period by the following formula:
wherein y is i,j A non-uniformity coefficient of air supply representing the jth month of the ith year in the history period; p is p i,j Representing the air supply amount of the ith year, the jth month in the history period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
the third determining unit determines the month demand in the preset time period according to the month gas non-uniformity coefficient in the preset time period and the annual demand in the preset time period, and the calculation formula is as follows:
in which Q i The gas consumption of the ith year in a preset time period is represented; w (w) i,j The air consumption of the ith year, the jth month in the preset time period is represented; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; z i,j The gas non-uniformity coefficient of the ith year, the jth month in the preset time period is represented;
the third determining unit determines the month air supply amount in the preset time period according to the month air supply non-uniformity coefficient in the preset time period and the year air supply amount in the preset time period, and the calculation formula is as follows:
Wherein G is i Indicating the air supply amount of the ith year in the preset time period; g i,j Indicating the air supply amount of the ith year, the jth month in the preset time period; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; r is (r) i,j And the non-uniformity coefficient of air supply of the ith year and the jth month in the preset time period is represented.
As a further improvement of the present invention, the first construction module constructs flow balance conditions according to a topology structure of the natural gas pipe network system, where the constructing includes:
the moon flow balance condition of the pipe section is as follows:
in the method, in the process of the invention,representing the flow rate of the fluid flowing into the jth pipe section in the t month; />Representing the flow rate of the jth pipe section flowing out of the jth pipe section; />The self-consumption of the jth pipe section in the t month is shown;
the monthly flow balance condition of the gas storage nodes is as follows:
in the method, in the process of the invention,the gas injection quantity of the nth gas storage in the t month is represented; />Representing the gas production amount of the nth gas storage in the t month; />The self-consumption of the nth gas storage in the t month is shown; />The gas storage variation of the nth gas storage in the t month is represented;
the moon flow balance condition of the station node is as follows:
in the method, in the process of the invention,representing the flow of the t month into the kth station node; />Indicating traffic flowing out of the kth station node in the t month.
As a further development of the invention, the second construction module constructs the following objective function with the aim of minimizing the natural gas supply costs during a preset period of time:
Wherein C is min Representing that the sum of the total supply costs for the next M months is lowest;indicating the air supply amount of the ith air source of the t month; />Representing the air supply cost of the ith air source in the t month; />The gas transmission quantity of the jth pipe section in the t month is represented; />The gas transmission cost of the jth pipe section in the t month is represented; />Representing the gas injection and production amount of the nth gas storage in the t month; />The gas injection and production cost of the nth gas storage in the t month is represented; />Representing the gas storage amount of the nth gas storage in the t month;and the gas storage cost of the nth gas storage in the t month is represented.
As a further improvement of the invention, the model solving module is further used for calculating annual gas injection, gas production and gas storage plans of the gas storage and annual gas transmission plans of the pipe section according to the monthly gas injection and production amount of the gas storage and the monthly gas transmission amount of the pipe section in a preset time period through the following formulas:
annual gas injection schedule = Σmonthgas injection amount of gas storage;
annual gas production plan of gas storage = Σmonthgas production;
annual gas storage plan for gas storage = annual last month gas storage amount-annual initial month gas storage amount;
pipe section annual gas delivery schedule = Σmonthgas delivery volume; wherein,
pipe section annual forward gas delivery schedule = Σmonthforward gas delivery volume
Pipe section annual reverse gas delivery schedule = Σmonthreverse gas delivery volume
The invention also provides equipment for making the injection, production and storage of the gas storage and/or the gas transmission plan of the pipe section, wherein the equipment comprises a processor and a memory; wherein,
the memory is used for storing machine executable instructions;
the processor is used for reading and executing the machine executable instructions stored in the memory so as to realize the gas storage injection and production storage and/or pipe section gas transmission planning method according to any one of the above.
The invention also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the method of gas storage injection production storage and/or pipe section gas transmission planning of any of the preceding claims.
The beneficial effects of the invention are as follows:
according to the method and the device for planning the injection, production and storage of the gas storage and/or the gas transmission of the pipe section, the monthly demand and the monthly gas supply in a preset time period are determined according to the monthly gas consumption and the monthly gas supply in a historical time period; constructing flow balance conditions based on the topological structure of the natural gas pipe network system; taking the natural gas supply cost in a preset time period as a target, taking a flow balance condition as a constraint, and constructing an air distribution model by combining the monthly demand and the monthly air supply in the preset time period; and according to the gas distribution model, the monthly gas injection and production gas storage quantity of the gas storage and/or the monthly gas transmission quantity of the pipe section are obtained. Through the mode, the invention realizes that the gas consumption and gas supply history data are based, a gas distribution model is constructed and the monthly data of the gas storage and gas production of the gas storage and the gas transmission of the pipe section are obtained by solving, the process comprehensively considers the mutual influence of the gas storage, the resource, the user and the pipe network, scientifically and reasonably prepares a production plan of the gas storage and gas production of the gas storage, so that the peak regulation capacity of the gas storage can be fully exerted, the capacity of the production plan when the gas supply and gas consumption of the user are changed is greatly improved, the technical problems that the gas storage and gas production plan preparation period is long, the efficiency is low, the peak regulation capacity of the gas storage cannot be fully exerted in the manual or simulation software preparation of the gas storage and gas production plan in the related technology are solved, and the peak regulation capacity of the gas storage does not consider the peripheral pipe network in some related technologies are solved; in addition, the gas storage injection and production amount is determined by the combination of a pipeline, a gas source and a user, so that the gas storage injection and production amount can be suitable for the traditional winter monotonous peak condition and winter Xia Shuangdiao peak scene, the season peak regulation means are further enriched, and the natural gas supply safety is ensured; meanwhile, the method is not only applicable to exhausted oil and gas reservoir type gas reservoirs, but also applicable to salt cavern type gas reservoirs, water-containing layer type gas reservoirs and other types of gas reservoirs, and has extremely high applicability, so that the method has wide application prospect.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 is a flow chart of a method of planning gas storage injection and production and/or pipeline section gas delivery of a gas storage of the present invention;
FIG. 2 is a topological structure diagram of a field station in a natural gas network system in the present invention;
FIG. 3 is a topological structure diagram of a natural gas pipe network system in the present invention;
FIG. 4 is a graph showing the comparison between the calculated gas injection and production amount of a certain gas storage and the historical planned value and the actual value of the gas storage calculated by the gas storage injection and production plan making method disclosed by the invention;
FIG. 5 is a graph showing the comparison between the calculated gas injection and production amount of another gas storage tank calculated by the gas storage tank injection and production planning method disclosed by the invention and the historical planned value and the actual value of the gas storage tank;
FIG. 6 is a system architecture diagram of the gas storage injection and production and/or pipeline section gas delivery planning apparatus of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a method for making a gas storage injection and production plan and a pipe section gas transmission plan of a gas storage, which mainly comprises the following steps: determining the month demand and the month air supply in a preset time period according to the month air consumption and the month air supply in the historical time period; constructing flow balance conditions based on the topological structure of the natural gas pipe network system; the natural gas supply cost is minimized in a preset time period, the flow balance condition is taken as a constraint, and a gas distribution model is constructed by combining the monthly demand and the monthly gas supply in the preset time period; and finally, according to the gas distribution model, the monthly gas injection and production gas storage quantity of the gas storage and the monthly gas transmission quantity of the pipe section can be obtained, so that the establishment of a monthly gas injection and production gas storage plan of the gas storage and a monthly gas transmission plan of the pipe section is completed.
The concrete explanation is as follows:
determining the month demand and month air supply in a preset time period according to the month air consumption and month air supply in a historical time period;
firstly, acquiring the monthly air consumption of a user and the monthly air supply of an air source in the historical time period, wherein the duration of the historical time period is preferably not less than 3 years; then, according to the data, a historical month gas use non-uniformity coefficient and a historical month gas supply non-uniformity coefficient in the historical time period can be calculated respectively; the month gas non-uniformity coefficient of the user in the future preset time period can be calculated based on the history month gas non-uniformity coefficient (usually, the period of the future preset time period is 1 year, and it is easily understood by those skilled in the art that the period can be set longer or shorter, and the preset time period can be M months). Because the annual demand of the user and the annual supply of the air source in the future preset time period are easy to obtain, the monthly demand of the user in the future preset time period can be determined based on the annual demand data and the determined future monthly air consumption non-uniformity coefficient; also, the monthly air supply amount of the air source in a future preset time period can be determined based on the annual air supply amount and the future monthly air supply non-uniformity coefficient.
Specifically, after the monthly air consumption of the user and the monthly air supply of the air source in the historical time period are obtained, the obtained air consumption data and air supply data can be corrected, and the specific correction method is as follows: first, a factor database is constructed, which contains a plurality of factors that affect the monthly air consumption of the user and the monthly air supply of the air source, for example: factors for suddenly reducing sales of users, including insufficient pressure reduction of resources (such as reduction of imported gas), occurrence of large-area shutdown and reduction of gas consumption (such as epidemic situation) and the like; factors for suddenly increasing sales of users, including production of new production lines, prolonged continuous low-temperature time, suddenly increased electricity generation gas (such as shortage of coal electricity supply) and the like; correcting the monthly air consumption and the monthly air supply according to the influencing factors; and according to the corrected monthly air consumption, calculating the historical monthly air consumption non-uniformity coefficient of the user through the following formula:
wherein x is i,j Representing the non-uniformity coefficient of the gas used by the jth month in the ith year in the historical time period; q i,j Representing the gas consumption of the jth month of the ith year in the historical time period; d, d i,j The number of days of the j-th month of the i-th year in the history period is represented.
In the embodiment of the present invention, if the duration of the history period is 3 years (of course, the history period is not limited to 3 years, but may be longer or shorter, and should fall within the scope of the present invention without departing from the technical concept of the present invention), i=1, 2,3 represents the last three years, and i=4 represents the next one year. Then when the month gas non-uniformity coefficient of the future 1 year is further calculated based on the history month gas non-uniformity coefficient of the last 3 years, the principle of 'near-large-far-small' can be adopted to allocate different weights for different times of the history, and the month gas non-uniformity coefficient of the future is calculated through weighting. For example: the non-uniformity coefficient of the month gas used in the next 1 year is calculated by the following formula, and the weight ratio of the last 3 years is respectively: 0.6 in the last 1 year, next 0.3 and next 0.1. In summary, the more recent years have a larger duty cycle at the time of solution.
x 4,j ＝0.1×x 1,j +0.3×x 2,j +0.6×x 3,j 。
Finally, the demand of the user in the next 1 year is obtained, and the monthly gas consumption of the next 1 year is calculated by utilizing the annual demand of the user and the non-uniform coefficient of the monthly gas consumption of the next 1 year through the following formula:
in which Q 4 Representing the gas consumption of the future 1 year; w (w) 4,j The air consumption of the j-th month of the next 1 year is represented; d (D) 4,j Day of the j-th month of the next 1 year; z 4,j And represents the gas non-uniformity coefficient of the j-th month of the next 1 year.
Similarly, when calculating the historical month air supply non-uniformity coefficient of the air source according to the corrected month air supply amount, the formula is as follows:
wherein y is i,j A non-uniformity coefficient of air supply representing the jth month of the ith year in the history period; p is p i,j Representing the air supply amount of the ith year, the jth month in the history period; d, d i,j Represents the number of days of month j of the i-th year in the history period.
Then, the moon air supply non-uniformity coefficient in the future preset time period is also obtained by a weighting calculation mode by utilizing the principle of 'near-far'.
And finally, acquiring the demand of the user in a future preset time period, and calculating the monthly air supply in the future preset time period by using the annual air supply of the air source and the non-uniform monthly air supply coefficient in the future preset time period through the following formula:
Wherein G is i Indicating the air supply amount of the ith year in the preset time period; g i,j Indicating the air supply amount of the ith year, the jth month in the preset time period; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; r is (r) i,j And the non-uniformity coefficient of air supply of the ith year and the jth month in the preset time period is represented.
Secondly, constructing flow balance conditions based on the topological structure of the natural gas pipe network system;
based on a natural gas pipe network system, a topological structure of the pipe network system is constructed. Specifically, the natural gas pipeline network system generally comprises a station, a gas source, a user, a gas storage and a natural gas pipeline connected with the station and the gas source; correspondingly, the constructed topological structure comprises a gas storage node, a station node, a gas source node, a user node and pipe sections among the nodes. As shown in fig. 2 and 3, stations having uploading and downloading functions are used as nodes, the nodes may be distinguished by ID numbers, pipe sections may be double-node assemblies and distinguished by upper node IDs and lower node IDs, for example, a connection line between stations in fig. 3 represents a pipe section between stations, and an arrow direction may represent a natural gas flowing direction. In the topology structure shown in fig. 4, the gas storage nodes, the station nodes, the gas source nodes and the user nodes are distinguished by respective ID numbers, and the connection relationship with the gas storage, the gas source, the user and the station is represented by the connected station node IDs.
Then, based on the constructed topology structure, the gas source, the user and the gas storage connected with the station nodes and the pipe sections connected with the two station nodes can be determined, so that the following flow balance conditions can be constructed:
1. moon flow balance condition of pipe section:
in the method, in the process of the invention,representing the flow rate of the fluid flowing into the jth pipe section in the t month; />Representing the flow rate of the jth pipe section flowing out of the jth pipe section; />And the self-consumption of the jth pipe section in the t month is shown. Namely: for each pipe section, the monthly inflow gas delivery is equal to the sum of the monthly outflow gas delivery and the monthly self-consumption of that pipe section.
2. Moon flow balance condition of gas storage nodes:
in the method, in the process of the invention,the gas injection quantity of the nth gas storage in the t month is represented; />Representing the gas production amount of the nth gas storage in the t month; />The self-consumption of the nth gas storage in the t month is shown; />And the variation of the gas storage of the nth gas storage in the t month is shown. Namely: for each gas storage, the monthly gas injection quantity minus the monthly gas injection quantity and the monthly self-consumption quantity of the gas storage are equal to the monthly gas storage variation quantity.
3. Moon flow balance condition of station node:
in the method, in the process of the invention,representing the flow of the t month into the kth station node; />Indicating traffic flowing out of the kth station node in the t month. Namely: for each station node, the sum of the monthly inflow air delivery and the monthly outflow air delivery is 0.
Thirdly, constructing a gas storage gas distribution model based on a pipe network based on the principle of lowest total cost in a preset time period;
by means of a linear programming method, natural gas supply cost is minimized in a preset time period in the future as an objective function, the monthly flow balance condition and the production constraint condition are comprehensively considered, and simultaneously, a gas distribution model is built by combining the monthly demand of a user and the monthly supply of a gas source in the preset time period, namely, a gas storage gas injection, gas production and gas storage monthly production model based on a pipe network system is built. Solving the model to obtain the monthly gas injection and production capacity of the gas storage and the monthly gas transmission capacity of the pipe section in a preset time period in the future; the gas injection and production gas storage tool specifically comprises gas injection quantity, gas production quantity and gas storage quantity.
Specifically, with the aim of minimizing the natural gas supply cost in a preset time period, constructing the following objective function, thereby establishing a multi-period linear programming model:
wherein C is min Representing that the sum of the total supply costs for the next M months is lowest;indicating the air supply amount of the ith air source of the t month; />Representing the air supply cost of the ith air source in the t month; />The gas transmission quantity of the jth pipe section in the t month is represented; / >The gas transmission cost of the jth pipe section in the t month is represented; />Representing the gas injection and production amount of the nth gas storage in the t month; />The gas injection and production cost of the nth gas storage in the t month is represented; />Representing the gas storage amount of the nth gas storage in the t month;and the gas storage cost of the nth gas storage in the t month is represented.
Further, the following production constraints are paid attention to before solving the model, and the production constraints are taken as boundary conditions of the model, and mainly include: pipe section constraints, gas storage constraints, gas source constraints, user constraints; wherein,
the pipe section constraint is as follows:in (1) the->Representing the flow rate of the jth pipe section in the t month;indicating the maximum flow of the jth tube section of the t month,/->Indicating the minimum flow rate of the jth pipe section in the t month.
The gas storage constraint is as follows:
in (1) the->Maximum gas injection representing nth gas storage of nth month tThe amount of the product is calculated,representing the minimum gas filling amount of the nth gas storage tank in the t month, < >>Representing the maximum gas production of the nth gas storage tank in the t month, <>Representing the minimum gas production of the nth gas storage tank in the t month, <>Indicating the maximum gas storage variation of the nth gas storage in the t month,/day>And the minimum gas storage variation of the nth gas storage in the t month is shown.
The air source constraint is as follows:in (1) the->Representing the minimum air supply amount of the ith air source of the t month; / >Indicating the maximum air supply amount of the ith air source of the t month; />Indicating the supply of the ith air supply at the t month.
The user constraints are:in (1) the->Indicating the first user split amount at the t month,indicating the first user maximum split amount of the t month,/->Indicating the first user minimum throughput at month t.
Fourthly, according to the gas distribution model, the monthly gas injection and production capacity of the gas storage and the monthly gas transmission capacity of the pipe section are obtained;
and solving the model by using a simplex method to obtain the monthly gas injection and production capacity of the gas storage and the monthly gas transmission capacity of the pipe section, wherein the obtained monthly gas injection and production capacity and the monthly gas transmission capacity of the pipe section are used for determining the monthly gas injection and production and gas storage plan of the gas storage and the monthly gas transmission plan of the pipe section. Specifically, the invention realizes that under different scenes of gas supply of a gas source and gas consumption of a user, a pipe network gas regulating mode is considered, and a gas storage injection and production curve is obtained according to the gas injection amount, the gas production amount, the gas storage amount and the gas transmission amount of a pipeline of the gas storage, so as to formulate a gas storage plan and a pipeline gas transmission and production plan. Based on the operation, the method of the embodiment of the disclosure adopts three indexes of gas injection quantity, gas production quantity and gas storage quantity to describe the gas storage, and the connection relation between the gas storage and a pipe network is described through the corresponding station node number of the gas storage. The constraint condition is constructed by considering that gas injection and gas production of the gas storage cannot occur at the same time, wherein at least one gas injection, gas production, self consumption and gas storage are kept in a conservation relationship, and at least one gas injection is 0.
Fifthly, making an annual gas injection and production gas storage plan and an annual gas transmission plan of a pipe section of the gas storage;
on the basis of acquiring the monthly gas storage capacity of the gas storage and the monthly gas transmission capacity of the pipeline, the annual schedule of the gas storage and the pipeline section can be determined according to the following formula; the annual gas storage annual plan comprises annual total gas injection, annual total gas production and annual gas storage change in a preset time period, and the pipe section annual plan comprises forward annual gas transmission quantity and reverse annual gas transmission quantity:
annual gas injection schedule = Σmonthly gas injection;
annual gas production schedule of gas storage = Σmonthly gas production;
annual gas storage plan for gas storage = annual last month gas storage capacity-annual first month gas storage capacity;
forward gas delivery amount of pipe section annual forward gas delivery schedule = Σmonth-divided;
pipe section annual reverse delivery schedule = Σmonthreverse delivery volume.
Specifically, the injection, production and storage parameters of the gas storage can be determined by the peak regulation requirement of a user by considering the peak regulation and staggering factors of the pipe network. Because the gas storage injection and production amount is determined by the combination of the pipeline, the gas source and the user in the method of the embodiment of the disclosure, the method not only can adapt to the traditional winter monotonous peak condition, but also can adapt to the winter Xia Shuangdiao peak scene, and the peak regulation capacity of the gas storage can be fully exerted through the peak shifting of the pipe network, so that a quantitative basis is provided for reasonably formulating the operation parameters of the gas storage for a natural gas peak regulation enterprise, grasping the gas storage injection and production gas storage amount dispatching range and controlling the safety operation risk of the gas storage.
Fig. 4 and fig. 5 respectively show graphs of comparison between calculated gas injection and production volume calculated values of a relevant gas storage and historical planned values and actual values of the gas storage when the gas storage injection and production plan making method disclosed by the invention is applied to the injection and production plan making of two different gas storages. Wherein fig. 4 includes 3 curves: calculating a value curve, a planned value curve and an actual value curve, wherein the planned value and the actual value are drawn according to 2017 historical data of a gas storage in the Bohai sea area, the horizontal axis in the figure represents 12 months in 2017, the vertical axis represents the gas quantity value, and the actual value is 10 4 m 3 And/d. The calculated value curve in the graph represents the monthly injection and production amount calculated by the method for planning injection and production of the gas storage by using the embodiment of the disclosure, the planned value represents a historical planned value of the gas storage obtained by the prior art through manual or simulation software in 2017, and the actual value represents an actual value of an actual injection and production working condition of the gas storage in 2017.
Fig. 5 includes 3 curves: calculated value curve, planned value curve and actual value curve, wherein the planned value and the actual value are drawn according to 2017 historical data of gas storage in northwest region, the horizontal axis in the figure represents 2017 12 months, the vertical axis represents gas quantity value, and the number of the gas is 10 4 m 3 And/d. The calculated curves in the figures represent application of embodiments of the present disclosureThe monthly injection and production amount calculated by adopting the injection and production plan making method of the gas storage is calculated, the plan value represents a historical plan value of the gas storage obtained by manual or simulation software in the prior art in 2017, and the actual value represents an actual value of an actual injection and production working condition of the gas storage in 2017.
The comparison results of the three types of numerical curves in the graph show that the three types of curves have consistency in injection and production rules and change trends, and the calculated value of the gas injection and production amount calculated by adopting the technical scheme is basically between the planned value prepared by the original method before the improvement and the actual value of the actual gas injection and production amount, so that the gas injection and production amount calculated by adopting the technical scheme is closer to the actual value of the gas injection and production amount than the planned value prepared by adopting the original method before the improvement. Therefore, the reliability and the scientificity of the method for planning and planning the injection and production of the gas storage are further verified, and an effective basis can be provided for the management decision of the injection and production of the gas storage in practical application.
The invention also provides a gas storage injection, production and storage and/or pipe section gas transmission plan making device, which comprises a determining module for determining the month demand and month gas supply in a preset time period according to the month gas consumption and month gas supply in a historical time period; the first construction module is used for constructing flow balance conditions according to the topological structure of the natural gas pipe network system; the system comprises a second construction module for constructing an air distribution model by taking natural gas supply cost minimization in a preset time period as a target, taking flow balance conditions as constraints and combining the monthly demand and the monthly air supply in the preset time period, and a model solving module for solving the monthly gas injection and production capacity of the air storage and/or the monthly air supply capacity of the pipe section in the preset time period according to the air distribution model. Sometimes, the model solving module is also used for classifying and summarizing the monthly gas injection and production amount of the gas storage and the monthly gas transmission amount of the pipe section, and calculating to obtain an annual gas injection and production storage plan of the gas storage and an annual gas transmission plan of the pipe section.
Any of the above-described determination module, first build module, second build module, and model solution module may be combined and implemented in one module, or any of the modules may be split into a plurality of modules. Alternatively, at least some of the functionality of one or more of the modules may be combined with at least some of the functionality of other modules and implemented in one module. At least one of the determination module, the first build module, the second build module, and the model solving module may be implemented at least in part as a hardware circuit, such as a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), a system on a chip, a system on a substrate, a system on a package, an Application Specific Integrated Circuit (ASIC), or by hardware or firmware in any other reasonable manner of integrating or packaging the circuits, or in any one of or a suitable combination of three of software, hardware, and firmware. Alternatively, at least one of the determination module, the first build module, the second build module, and the model solving module may be at least partially implemented as a computer program module, which when executed, performs the corresponding functions. Moreover, the specific manner in which the various modules of the apparatus described above perform operations has been described in detail in connection with particular embodiments of the method, and will not be described in detail herein.
The invention also provides equipment suitable for the method and the device for planning the gas storage injection and production plan of the gas storage, which comprises at least one processor and at least one memory for storing executable instructions of the processor; wherein the processor is configured to perform the method steps in the above-described exemplary embodiments of the present disclosure via execution of the executable instructions. In some possible embodiments, fig. 6 schematically shows the system architecture of the device. Referring to fig. 6, the system architecture 100 may include: terminal devices 101, 102, 103, a network 104 and a server 105. The network 104 is used as a medium to provide communication links between the terminal devices 101, 102, 103 and the server 105. The network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others. An operator can interact with the server 105 via the network 104 using the terminal devices 101, 102, 103 to receive or send messages or the like. The transmitted message may be query information and the received message may be a query result. Various types of communication client applications, such as a web browser application, a search class application, an instant messaging tool, a mailbox client, social platform software, etc., may be installed on the terminal devices 101, 102, 103, as just examples. The terminal devices 101, 102, 103 may be various electronic devices that display screens and support web browsing, such as electronic devices including, but not limited to, smartphones, tablets, notebooks, desktop computers, smartwatches, and the like. The server 105 may be a server providing various services, such as a background management server (by way of example only) providing service support for data processing of web pages accessed by operators using the terminal devices 101, 102, 103. The background management server may analyze and process the received data such as the access request, and feed back the processing result (e.g., a web page, information, or data acquired or generated according to a request, an instruction, or the like input by an operator) to the terminal device.
It should be noted that, the method for making the injection-production-storage plan of the gas storage provided in the embodiments of the present disclosure may be generally executed by the server 105 or a terminal device having a certain computing capability. Accordingly, the gas storage injection-production-storage planning device provided in the embodiments of the present disclosure may be generally disposed in the server 105 or the terminal device with a certain computing capability. The gas storage injection and production storage planning method provided by the embodiments of the present disclosure may also be performed by a server or a server cluster that is different from the server 105 and is capable of communicating with the terminal devices 101, 102, 103 and/or the server 105. Accordingly, the gas storage injection-production-storage planning apparatus provided by the embodiments of the present disclosure may also be provided in a server or a server cluster that is different from the server 105 and is capable of communicating with the terminal devices 101, 102, 103 and/or the server 105.
It should be understood that the number of terminal devices, networks and servers in fig. 6 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation.
The present invention also provides a computer readable storage medium having stored thereon a program product capable of implementing the method described above in the present specification. In some possible embodiments, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device as described above to carry out the steps of the various exemplary embodiments described in the gas storage injection and production and/or pipe section gas transmission planning methods section herein, when the program product is run on the terminal device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
In summary, the method and the device for planning injection, production and storage of the gas storage and/or gas transmission of the pipe section provided by the invention not only consider the constraint of the injection, production and storage capacity of the gas storage, but also combine the transmission and distribution capacity and layout condition of the natural gas pipe network to comprehensively consider the distribution and the non-uniformity of the peripheral gas sources of the gas storage and users when the month-by-month gas injection, gas production and gas storage production plan of the gas storage is formulated. The peak regulation capability of the gas storage can be fully exerted through the peak shifting of the pipe network, and a quantitative basis is provided for reasonably formulating operation parameters of the gas storage for a natural gas peak regulation enterprise, grasping the injection and production gas storage quantity scheduling range of the gas storage and controlling the safety operation risk of the gas storage. The problems that the gas storage and peak regulation enterprises have long period of monthly gas injection, gas production and gas storage scheme making, weak capability of coping with gas supply of a gas source and gas regulation change of a user, and the like are solved, the operation rule of gas storage injection and production is accurately mastered, the change condition of the gas storage amount of the gas storage is rapidly mastered, and the gas storage and peak regulation safety is ensured.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (16)
1. A method of gas storage injection and production and/or pipe section gas delivery planning, the method comprising:
determining the month demand and the month air supply in a preset time period according to the month air consumption and the month air supply in the historical time period;
constructing flow balance conditions based on the topological structure of the natural gas pipe network system;
the natural gas supply cost is minimized in a preset time period as a target, the flow balance condition is taken as a constraint, and a gas distribution model is built by combining the month demand and month gas supply in the preset time period;
and according to the gas distribution model, the monthly gas injection and production capacity of the gas storage and/or the monthly gas transmission capacity of the pipe section in a preset time period are obtained, so that the establishment of a monthly gas injection and production plan of the gas storage and/or a monthly gas transmission plan of the pipe section is completed.
2. The gas storage injection, production and/or pipe section gas transmission planning method according to claim 1, wherein the determining the month demand and month gas supply in the preset time period according to the month gas consumption and month gas supply in the historical time period comprises:
determining a historical month gas use non-uniformity coefficient and a historical month gas supply non-uniformity coefficient in a historical time period according to month gas consumption and month gas supply in the historical time period;
According to the historical moon gas non-uniformity coefficient and the historical moon gas non-uniformity coefficient, respectively determining the moon gas non-uniformity coefficient and the moon gas non-uniformity coefficient in a preset time period;
and determining the month demand and the month air supply in the preset time period by combining the year demand and the year air supply in the preset time period according to the month air consumption non-uniformity coefficient and the month air supply non-uniformity coefficient in the preset time period.
3. The gas storage injection, production and/or pipe section gas transmission planning method according to claim 2, wherein the determining the historical month gas consumption unevenness coefficient and the historical month gas supply unevenness coefficient in the historical time period according to the month gas consumption and the month gas supply amount in the historical time period comprises:
according to the monthly gas consumption in the historical time period, calculating a historical monthly gas consumption non-uniformity coefficient according to the following formula:
wherein x is i,j A gas use non-uniformity coefficient representing the jth month of the ith year in the history period; q i,j Representing the gas consumption of the ith year, the jth month in the historical time period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
according to the month air supply quantity in the historical time period, calculating the historical month air supply non-uniformity coefficient by the following formula:
Wherein y is i,j A non-uniformity coefficient of air supply representing the jth month of the ith year in the history period; p is p i,j Representing the air supply amount of the ith year, the jth month in the history period; d, d i,j Represents the number of days of month j of the i-th year in the history period.
4. The gas storage injection, production and/or pipe section gas transmission planning method according to claim 2, wherein determining the month demand and month gas supply in the preset time period in combination with the year demand and year gas supply in the preset time period includes:
according to the moon gas non-uniformity coefficient in the preset time period and the annual demand in the preset time period, when determining the moon demand in the preset time period, the calculation formula is as follows:
in which Q i The gas consumption of the ith year in a preset time period is represented; w (w) i,j The air consumption of the ith year, the jth month in the preset time period is represented; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; z i,j The gas non-uniformity coefficient of the ith year, the jth month in the preset time period is represented;
when determining the month air supply quantity in the preset time period according to the month air supply non-uniformity coefficient in the preset time period and the year air supply quantity in the preset time period, the calculation formula is as follows:
Wherein G is i Indicating the air supply amount of the ith year in the preset time period; g i,j Indicating the air supply amount of the ith year, the jth month in the preset time period; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; r is (r) i,j And the non-uniformity coefficient of air supply of the ith year and the jth month in the preset time period is represented.
5. The method for planning gas storage, injection and production and/or pipeline section gas delivery of any one of claims 1-4, wherein the topology of the natural gas pipeline network system comprises nodes and pipeline sections between the nodes, wherein the nodes comprise gas storage nodes, station nodes, gas source nodes and user nodes.
6. The method for planning gas storage injection and production and/or gas transmission in pipe sections of claim 5, wherein said flow balance condition comprises: the moon flow balance condition of the pipe section, the gas storage node and the station node; wherein,
the moon flow balance condition of the pipe section is as follows:
in the method, in the process of the invention,representing the flow rate of the fluid flowing into the jth pipe section in the t month; />Representing the flow rate of the jth pipe section flowing out of the jth pipe section;the self-consumption of the jth pipe section in the t month is shown;
the monthly flow balance condition of the gas storage nodes is as follows:
in the method, in the process of the invention,the gas injection quantity of the nth gas storage in the t month is represented; / >Representing the gas production amount of the nth gas storage in the t month;the self-consumption of the nth gas storage in the t month is shown; />The gas storage variation of the nth gas storage in the t month is represented;
the moon flow balance condition of the station node is as follows:
in the method, in the process of the invention,representing the flow of the t month into the kth station node; />Indicating traffic flowing out of the kth station node in the t month.
7. The method for planning gas storage injection and production and/or gas transmission in pipe sections of claim 1, wherein said targeting natural gas supply costs for a predetermined period of time comprises:
the following objective function is constructed:
wherein C is min Representing that the sum of the total supply costs for the next M months is lowest;indicating the air supply amount of the ith air source of the t month;representing the air supply cost of the ith air source in the t month; />The gas transmission quantity of the jth pipe section in the t month is represented; />The gas transmission cost of the jth pipe section in the t month is represented; />Representing the gas injection and production amount of the nth gas storage in the t month; />The gas injection and production cost of the nth gas storage in the t month is represented; />Representing the gas storage amount of the nth gas storage in the t month; />And the gas storage cost of the nth gas storage in the t month is represented.
8. The method for planning gas storage injection and production and/or pipeline section gas transmission of a gas storage as claimed in claim 1, wherein the method further comprises:
According to the acquired monthly gas injection and production capacity of the gas storage and the monthly gas transmission capacity of the pipe section in the preset time period, calculating annual gas injection, gas production and gas storage plans of the gas storage and annual gas transmission plans of the pipe section according to the following formulas:
annual gas injection schedule = Σmonthgas injection amount of gas storage;
annual gas production plan of gas storage = Σmonthgas production;
annual gas storage plan for gas storage = annual last month gas storage amount-annual initial month gas storage amount;
pipe section annual gas delivery schedule = Σmonthgas delivery volume.
9. A gas storage injection and production and/or pipeline section gas delivery planning device, the device comprising:
the determining module is used for determining the month demand and the month air supply in a preset time period according to the month air consumption and the month air supply in the historical time period;
the first construction module is used for constructing flow balance conditions according to the topological structure of the natural gas pipe network system;
the second construction module is used for constructing an air quantity distribution model by taking the natural gas supply cost in a preset time period as a target and taking the flow balance condition as a constraint and combining the monthly demand and the monthly air supply in the preset time period;
and the model solving module is used for solving the monthly gas injection and production storage capacity of the gas storage and/or the monthly gas transmission capacity of the pipe section in a preset time period according to the gas distribution model.
10. The gas storage injection and production storage and/or pipeline section gas delivery planning apparatus as claimed in claim 9 wherein the determination module comprises:
a first determining unit configured to determine a historical month gas consumption unevenness coefficient and a historical month gas supply unevenness coefficient in a historical period according to a month gas consumption and a month gas supply amount in the historical period;
a second determining unit, configured to determine a moon gas non-uniformity coefficient and a moon gas non-uniformity coefficient in a preset time period according to the historical moon gas non-uniformity coefficient and the historical moon gas non-uniformity coefficient, respectively;
and the third determining unit is used for determining the month demand and the month air supply quantity in the preset time period according to the month air consumption non-uniformity coefficient and the month air supply non-uniformity coefficient in the preset time period and combining the year demand and the year air supply quantity in the preset time period.
11. The gas storage injection-production-storage and/or pipe section gas transmission planning apparatus according to claim 10, wherein the first determination unit calculates a historical month gas use unevenness coefficient from the month gas use amount in the historical period by the following formula:
wherein x is i,j A gas use non-uniformity coefficient representing the jth month of the ith year in the history period; q i,j Representing the gas consumption of the ith year, the jth month in the historical time period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
the first determination unit calculates a historical month air supply unevenness coefficient from the month air supply amount in the historical period by the following formula:
wherein y is i,j A non-uniformity coefficient of air supply representing the jth month of the ith year in the history period; p is p i,j Representing the air supply amount of the ith year, the jth month in the history period; d, d i,j Representing the number of days of the ith year, the jth month in the historical time period;
the third determining unit determines the month demand in the preset time period according to the month gas non-uniformity coefficient in the preset time period and the annual demand in the preset time period, and the calculation formula is as follows:
in which Q i The gas consumption of the ith year in a preset time period is represented; w (w) i,j The air consumption of the ith year, the jth month in the preset time period is represented; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; z i,j The gas non-uniformity coefficient of the ith year, the jth month in the preset time period is represented;
the third determining unit determines the month air supply amount in the preset time period according to the month air supply non-uniformity coefficient in the preset time period and the year air supply amount in the preset time period, and the calculation formula is as follows:
Wherein G is i Indicating the air supply amount of the ith year in the preset time period; g i,j Indicating the air supply amount of the ith year, the jth month in the preset time period; d (D) i,j Indicating the number of days of the ith year, the jth month in a preset time period; r is (r) i,j And the non-uniformity coefficient of air supply of the ith year and the jth month in the preset time period is represented.
12. The gas storage injection-production-storage and/or pipeline section gas transmission planning apparatus according to any one of claims 9 to 11, wherein the first construction module constructs flow balance conditions according to a topology structure of a natural gas pipeline network system, including:
the moon flow balance condition of the pipe section is as follows:
in the method, in the process of the invention,representing the flow rate of the fluid flowing into the jth pipe section in the t month; />Representing the flow rate of the jth pipe section flowing out of the jth pipe section;the self-consumption of the jth pipe section in the t month is shown;
the monthly flow balance condition of the gas storage nodes is as follows:
in the method, in the process of the invention,the gas injection quantity of the nth gas storage in the t month is represented; />Representing the gas production amount of the nth gas storage in the t month;the self-consumption of the nth gas storage in the t month is shown; />The gas storage variation of the nth gas storage in the t month is represented;
the moon flow balance condition of the station node is as follows:
in the method, in the process of the invention,representing the flow of the t month into the kth station node; />Indicating traffic flowing out of the kth station node in the t month.
13. The gas storage injection and production storage and/or pipeline section gas delivery planning apparatus as claimed in claim 9 wherein the second building module aims at minimizing the cost of natural gas supply for a predetermined period of time, and constructs an objective function as follows:
wherein C is min Representing that the sum of the total supply costs for the next M months is lowest;indicating the air supply amount of the ith air source of the t month;representing the air supply cost of the ith air source in the t month; />The gas transmission quantity of the jth pipe section in the t month is represented; />The gas transmission cost of the jth pipe section in the t month is represented; />Representing the gas injection and production amount of the nth gas storage in the t month; />Indicating the nth seat of the nth monthThe gas injection and production cost; />Representing the gas storage amount of the nth gas storage in the t month; />And the gas storage cost of the nth gas storage in the t month is represented.
14. The gas storage injection and production storage and/or pipeline section gas delivery planning apparatus according to claim 9, wherein,
the model solving module is further used for calculating annual gas injection, gas production and gas storage plans of the gas storage and annual gas transmission plans of the pipe sections according to the monthly gas injection and production amount of the gas storage and the monthly gas transmission amount of the pipe sections in a preset time period through the following formulas:
annual gas injection schedule = Σmonthgas injection amount of gas storage;
Annual gas production plan of gas storage = Σmonthgas production;
annual gas storage plan for gas storage = annual last month gas storage amount-annual initial month gas storage amount;
pipe section annual gas delivery schedule = Σmonthgas delivery volume.
15. An apparatus for planning gas storage injection and production and/or pipe section gas transmission, the apparatus comprising a processor and a memory; wherein,
the memory is used for storing machine executable instructions;
the processor is configured to read and execute the machine executable instructions stored in the memory, so as to implement the method for making gas storage injection and production and/or pipe section gas transmission plan according to any one of claims 1 to 8.
16. A computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method of gas storage injection and production and/or pipe section gas transmission planning of any one of claims 1 to 8.
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| CN202211180647.8A CN117852217A (en) | 2022-09-27 | 2022-09-27 | Method and device for planning injection, production and storage of gas storage and/or gas transmission of pipe section |
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| CN202211180647.8A CN117852217A (en) | 2022-09-27 | 2022-09-27 | Method and device for planning injection, production and storage of gas storage and/or gas transmission of pipe section |
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