CN110442883B - Method and device for determining influence degree of pipe network operation factors - Google Patents
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Abstract
The invention provides a method and a device for determining the influence degree of pipe network operation factors, wherein the method comprises the following steps: respectively obtaining a pipe network reference value corresponding to a plurality of preset factors, a change value of a plurality of sub-factors included by each preset factor and an operation value of each sub-factor under a plurality of working conditions; calculating to obtain the change sensitivity of each preset factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions; and determining the influence degrees of the preset factors according to the change sensitivity of the preset factors. The invention can quantitatively determine the influence degree of the pipe network operation factors.
Description
Technical Field
The invention relates to the technical field of oil and gas transmission, in particular to a method and a device for determining the influence degree of pipe network operation factors.
Background
The operation of the pipe network is influenced by various factors, and the determination of the influence degree of each factor has important guiding significance on the design and the operation of the pipe network. At present, certain research is carried out at home and abroad aiming at the influence of the operation factors of the pipe network.
When the influence of pipe network operation factors is researched, the overall change rule of the pipe network load is obtained by collecting and analyzing data in the related technology.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the related technology can only qualitatively evaluate the influence degree of the pipe network operation factors, and at present, no method for quantitatively researching the influence degree of the pipe network operation factors exists.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for determining an influence degree of a pipe network operation factor, which can quantitatively determine the influence degree of a plurality of operation factors of a pipe network.
Specifically, the method comprises the following technical scheme:
in a first aspect, the present invention provides a method for determining an influence degree of a pipe network operation factor, including:
respectively obtaining a pipe network reference value corresponding to a plurality of preset factors, a change value of a plurality of sub-factors included by each preset factor and an operation value of each sub-factor under a plurality of working conditions;
calculating to obtain the change sensitivity of each preset factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions;
and determining the influence degrees of the preset factors according to the change sensitivity of the preset factors.
Optionally, the calculating, according to the pipe network reference value corresponding to each preset factor, the variation value of the multiple sub-factors included in each preset factor, and the operation value of each sub-factor under multiple working conditions, the variation sensitivity of each preset factor includes:
calculating the change rate and the comprehensive load rate change rate of each sub-factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions;
calculating the weighted average change rate of each preset factor according to the change rate of a plurality of sub-factors included in each preset factor;
calculating the weighted average change rate of the comprehensive load rate of each preset factor according to the comprehensive load rate change rate of a plurality of sub-factors included in each preset factor;
and calculating the change sensitivity of each preset factor according to the weighted average change rate of each preset factor and the weighted average change rate of the comprehensive load rate.
Alternatively, the calculation formula of the change rate of each of the sub-factors included in the preset factors is as follows:
the calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
Optionally, the weighted average rate of change for each predetermined factor is calculated by:
the calculation formula of the weighted average change rate of the comprehensive load rate of each preset factor is as follows:
the calculation formula of the change sensitivity of each preset factor is as follows:
in the formula,
p-Preset factor MlThe number of sub-factors involved.
Optionally, the calculation process of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
respectively acquiring actual values and design values of a plurality of evaluation factors of a plurality of stations or pipelines of a pipe network under a plurality of preset working conditions corresponding to the sub-factors included in each preset factor;
calculating the operation load rate of each evaluation factor of each station and pipeline of each sub-factor under each preset working condition according to the actual value and the design value of each evaluation factor of each station or pipeline of each sub-factor under each preset working condition;
calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of the plurality of stations or pipelines under each preset working condition of each sub-factor;
calculating the comprehensive load rate of each sub-factor under each preset working condition according to the load rate of each sub-factor under each preset working condition of the same evaluation factor of a plurality of stations;
and calculating the comprehensive load rate change rate of each sub-factor according to the comprehensive load rate of each sub-factor under a plurality of preset working conditions.
Optionally, the determining the influence degrees of the plurality of preset factors according to the change sensitivities of the plurality of preset factors includes:
carrying out normalization processing on the change sensitivities of the preset factors to obtain the normalized change sensitivities of the preset factors;
and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors.
A second aspect of the present invention provides an apparatus for determining an influence degree of a pipe network operation factor, including:
the acquisition module is used for respectively acquiring a pipe network reference value corresponding to a plurality of preset factors, a change value of a plurality of sub-factors included by each preset factor and an operation value of each sub-factor under a plurality of working conditions;
the calculation module is used for calculating the change sensitivity of each preset factor according to a pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the operation value of each sub-factor under a plurality of working conditions;
and the determining module is used for determining the influence degrees of the preset factors according to the change sensitivity of the preset factors.
Optionally, the calculation module comprises:
the first calculating unit is used for calculating the change rate and the comprehensive load rate change rate of each sub-factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions;
the second calculation unit is used for calculating the weighted average change rate of each preset factor according to the change rate of a plurality of sub-factors included in each preset factor;
the third calculating unit is used for calculating the weighted average change rate of the comprehensive load rate of each preset factor according to the comprehensive load rate change rate of a plurality of sub-factors included in each preset factor;
and the fourth calculating unit is used for calculating the change sensitivity of each preset factor according to the weighted average change rate of each preset factor and the weighted average change rate of the comprehensive load rate.
Alternatively, the calculation formula of the change rate of each of the sub-factors included in the preset factors is as follows:
the calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
Optionally, the calculation formula of the second calculation unit is:
the third calculation unit adopts a calculation formula as follows:
the fourth calculating unit adopts a calculation formula as follows:
in the formula,
p-Preset factor MlThe number of sub-factors involved.
Optionally, the process of calculating the comprehensive load rate change rate of the sub-factors included in each preset factor by the first calculating unit is as follows:
respectively acquiring actual values and design values of a plurality of evaluation factors of a plurality of stations or pipelines of a pipe network under a plurality of preset working conditions corresponding to the sub-factors included in each preset factor;
calculating the operation load rate of each evaluation factor of each station and pipeline of each sub-factor under each preset working condition according to the actual value and the design value of each evaluation factor of each station or pipeline of each sub-factor under each preset working condition;
calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of the plurality of stations or pipelines under each preset working condition of each sub-factor;
calculating the comprehensive load rate of each sub-factor under each preset working condition according to the load rate of each sub-factor under each preset working condition of the same evaluation factor of a plurality of stations;
and calculating the comprehensive load rate change rate of each sub-factor according to the comprehensive load rate of each sub-factor under a plurality of preset working conditions.
Optionally, the determining module is specifically configured to:
carrying out normalization processing on the change sensitivities of the preset factors to obtain the normalized change sensitivities of the preset factors;
and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
according to the method and the device for determining the influence degree of the operation factors, provided by the embodiment of the invention, the change sensitivity of each preset factor can be calculated according to the pipe network reference value corresponding to the preset factors, the change value of the sub-factors included by each preset factor and the operation value of each sub-factor under a plurality of working conditions, so that the influence degree of each preset factor on the pipe network operation can be determined according to the change sensitivity of each preset factor. Therefore, the method for determining the influence degree of the operation factors, provided by the embodiment of the invention, can quantitatively evaluate the influence degree of each preset factor on the pipe network, has higher accuracy compared with the qualitative evaluation in the prior art, and can perform daily operation management and planning operation scheduling scheme of the pipe network according to the influence degrees of the plurality of preset factors on the pipe network.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for determining an influence degree of a pipe network operation factor according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating the calculation of the sensitivity to change for each predetermined factor according to an embodiment of the present invention;
fig. 3 is a block diagram of an apparatus for determining an influence degree of a pipe network operation factor according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe embodiments of the present invention in further detail with reference to the accompanying drawings.
The embodiment of the invention provides a method for determining the influence degree of pipe network operation factors, which comprises the steps 101 to 104 as shown in fig. 1. The steps will be specifically described below.
In step 101, pipe network reference values corresponding to a plurality of preset factors, variation values of a plurality of sub-factors included in each preset factor, and operation values of each sub-factor under a plurality of working conditions are obtained respectively.
In this step, the plurality of preset factors may include an air supply amount, an air supply pressure, a reduced air consumption when a large industrial user stops using air, a reduced air consumption when a region stops using air, an increased air consumption when a market develops, and an air consumption variation amount caused by city gas peak shaving. For five preset factors of air source quantity, reduced air consumption when large industrial users stop using the air supply, reduced air consumption when regional air stops, increased air consumption when market development is carried out and air consumption variation caused by city gas peak shaving, the operation value of a pipe network refers to the operation air quantity of the pipe network, and for air source pressure, the operation value of the pipe network refers to the operation pressure value of the pipe network. The variation value of each sub-factor included in each preset factor refers to the maximum difference value of the operation values of the corresponding sub-factors under a plurality of working conditions.
The gas source quantity may comprise a plurality of sub-factors which may be different gas sources, for example, six different gas sources a-F may be included. Taking the air source A as an example, the operating values of the air source A under different working conditions are 300 ten thousand square/day, 350 ten thousand square/day, 400 ten thousand square/day, 450 ten thousand square/day, 500 ten thousand square/day, 550 ten thousand square/day, 600 ten thousand square/day and 650 ten thousand square/day respectively. The variation value refers to the difference value between the maximum operation value and the minimum operation value of the air source A under different working conditions, and is 350 ten thousand square per day.
The source gas pressure may comprise a plurality of sub-factors which may be the source gas pressures of the different stations and may comprise, for example, the source gas pressures of 1-5 different stations. Taking the gas source pressure of 2 stations as an example, the variation value can be 1MPa, and the gas source pressures of 2 stations under different working conditions are 5.0MPa, 5.2MPa, 5.4MPa, 5.6MPa, 5.8MPa and 6.0MPa respectively.
The plurality of sub-factors that a large industrial user deactivates a reduced gas usage may be a plurality of deactivated large industrial users, for example, A, B, C, D and E five users that may have a larger gas usage may be included.
The plurality of sub-factors comprising the reduced gas usage for gas outage of a region may be a plurality of areas of outage, for example may include five cities a, b, c, d and e.
The gas usage for market development increases may include a number of sub-factors that may be a number of cities for which gas usage increases as a result of market development.
The amount of change in gas usage caused by city gas peak shaving includes a number of sub-factors which may be a number of gas companies with fluctuating daily gas usage.
In step 102, the variation sensitivity of each preset factor is calculated according to the pipe network reference value corresponding to each preset factor, the variation value of the plurality of sub-factors included in each preset factor, and the operation value of each sub-factor under a plurality of working conditions.
This step can be obtained through sub-steps 201-204, as shown in fig. 2, each of which is described in detail below.
In the sub-step 201, the change rate and the comprehensive load rate change rate of each sub-factor are calculated according to the pipe network reference value corresponding to each preset factor, the change value of the plurality of sub-factors included in each preset factor, and the operation value of each sub-factor under a plurality of working conditions.
In this sub-step, the calculation formula of the rate of change of each sub-factor is as follows:
in the formula,
The calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
Wherein, the calculation process of the comprehensive load rate of each sub-factor is as follows:
firstly, actual values and design values of a plurality of evaluation factors of each station or pipeline included in a pipe network under a plurality of preset working conditions corresponding to sub-factors included in each preset factor are obtained.
Wherein, the plurality of evaluation factors included by each sub-factor can be station pressure, station handling capacity, pipeline gas transmission capacity and pipeline gas storage capacity. The actual value of each evaluation factor is a measured value, and the design value is a value calculated in accordance with the scale of the pipe network, an index expected to be achieved, and the like at the time of designing the pipeline.
And secondly, calculating the operation load rate of each evaluation factor of each station yard under each preset working condition according to the actual value and the design value of the evaluation factors of each station yard or pipeline under each preset working condition.
The operation load rate of each evaluation factor of each station or pipeline under each preset working condition can be calculated by the following formula:
in the formula,
αi,X,j-evaluation factor X of ith station or pipeline under jth preset working conditionkThe operating load factor of (c);
Xk actual i, j-evaluation factor X of ith station or pipeline under jth preset working conditionkThe actual value of (c);
Xk design i, j-evaluation factor X of ith station or pipeline under jth preset working conditionkDesign value of (c).
Calculating to obtain a pressure load rate according to the actual pressure and the design pressure of the station; calculating to obtain a processing load rate according to the actual processing capacity and the design processing capacity of the station yard; calculating to obtain a gas transmission load rate according to the actual gas transmission capacity and the designed gas transmission capacity of the pipeline; and calculating to obtain the gas storage load rate according to the actual gas storage amount and the designed gas storage amount of the pipeline.
And thirdly, calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of a plurality of stations or pipelines under each preset working condition.
The load rate of each evaluation factor of each sub-factor under each preset working condition can be calculated by adopting the following calculation formula:
in the formula,
n-the number of stations or pipes in the pipe network.
And then, calculating the comprehensive load rate of the pipe network of each sub-factor under each preset working condition according to the load rate of each evaluation factor of each sub-factor under each preset working condition.
The following calculation formula can be adopted for calculation:
in the formula,
Kj-the integrated load factor of the sub-factors under the jth preset condition;
n is the number of the evaluation factors of the sub-factors;
wXevaluation factor X of sub-factorskThe operating load factor of (2).
For the preset factor MlSub-factor M oflnAnd the comprehensive load rate of the load under different working conditions can be calculated through the calculation process
In sub-step 202, a weighted average rate of change of each predetermined factor is calculated based on the rate of change of the plurality of sub-factors included in each predetermined factor.
Wherein, the calculation formula of the weighted average change rate of each sub-factor is as follows:
in the formula,
p-Preset factor MlThe number of sub-factors involved.
In sub-step 203, a weighted average change rate of the integrated load rate of each predetermined factor is calculated according to the integrated load rate change rate of the plurality of sub-factors included in each predetermined factor.
The calculation formula of the comprehensive load rate weighted average change rate of each preset factor is as follows:
in the formula,
p-Preset factor MlThe number of sub-factors involved.
In sub-step 204, the variation sensitivity of each predetermined factor is calculated according to the weighted average variation rate of each predetermined factor and the weighted average variation rate of the integrated load factor.
Wherein, the calculation formula of the change sensitivity of each preset factor is as follows:
in the formula,
In step 103, the influence degrees of the plurality of preset factors are determined according to the variation sensitivities of the plurality of preset factors.
In this step, the variation sensitivities of a plurality of preset factors may be normalized to obtain the normalized variation sensitivities of the plurality of preset factors; and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors. Specifically, the greater the normalized change sensitivity of the preset factor is, the greater the influence degree of the preset factor on the operation of the pipe network is.
According to the method for determining the influence degree of the operation factors, provided by the embodiment of the invention, the change sensitivity of each preset factor can be calculated according to the pipe network reference value corresponding to the preset factors, the change value of the sub-factors included by each preset factor and the operation value of each sub-factor under a plurality of working conditions, so that the influence degree of each preset factor on the pipe network operation can be determined according to the change sensitivity of each preset factor. Therefore, the method for determining the influence degree of the operation factors, provided by the embodiment of the invention, can quantitatively evaluate the influence degree of each preset factor on the pipe network, and has higher accuracy compared with the qualitative evaluation in the prior art.
The invention also provides a specific application embodiment of the method for determining the influence degree of the pipe network operation factors. In implementation, six preset factors are selected, namely the gas source quantity, the gas source pressure, the gas consumption reduced when a large industrial user stops using gas, the gas consumption reduced when a region stops using gas, the gas consumption increased in market development and the gas consumption variable quantity caused by urban gas peak regulation. Five working conditions are set for each preset factor respectively. Each sub-factor comprises four evaluation factors, namely station pressure, station treatment capacity, pipeline gas transmission capacity and pipeline gas storage capacity. And when calculating the comprehensive load rate of the sub-factors included in the preset factors, respectively taking 25% of the station pressure load rate, the station processing capacity load rate, the pipeline gas transmission capacity load rate and the pipeline gas storage capacity load rate.
When the weighted average change rate of the air source quantity is carried out, the change rates of the air source elements of the six sub-factors A-F included in the air source quantity are respectively calculated to be 0.07, 0.06, 0.16, 0.05, 0.04 and 0.04, so that the weighted average change rate of the air source quantity can be calculated to be 0.0927; and secondly, calculating the comprehensive load rate change rates of the six sub-factors A-F gas source elements included in the gas source quantity to be 0.051, 0.016, 0.064, 0.044, 0.021 and 0.022 respectively, so that the comprehensive load rate weighted average change rate of the gas source quantity can be calculated to be 0.045. And finally, calculating to obtain the change sensitivity of the air source quantity to be 2.1 according to the comprehensive load rate change rate of the air source quantity and the weighted average change rate of the comprehensive load rate.
Thereafter, the sensitivity of the change of the other five preset factors was calculated to be 6.5, 0.8, 2.9, 2.5 and 3.8, respectively.
And normalizing the change sensitivities of the six preset factors to obtain the normalized change sensitivities of the six preset factors which are respectively 0.11 air source amount, 0.36 air source pressure, 0.04 air consumption reduced when the large industrial user stops using the air, 0.16 air consumption reduced when the area stops using the air, 0.21 air consumption increased when the market develops and 0.12 air consumption variable quantity caused by urban gas peak regulation. Therefore, it can be determined that the maximum influence degree of the air source pressure on the operation of the pipe network is 36%, the influence degrees of the air consumption increased by market development and the air consumption increased by market development are 21% and 16%, respectively, the influence degrees of the air consumption variation amount and the air source amount caused by urban gas peak shaving are relatively close to each other and are 12% and 11%, respectively, and the influence degree of the air consumption reduced by the stop of the large industrial users is 4% as the minimum.
An embodiment of the present invention further provides a device for determining an influence degree of a pipe network operation factor, as shown in fig. 3, the device includes:
an obtaining module 301, configured to obtain a pipe network reference value corresponding to a plurality of preset factors, a variation value of a plurality of sub-factors included in each preset factor, and an operation value of each sub-factor under a plurality of working conditions, respectively;
a calculating module 302, configured to calculate a change sensitivity of each preset factor according to a pipe network reference value corresponding to each preset factor, a change value of a plurality of sub-factors included in each preset factor, and an operation value of each sub-factor under multiple working conditions;
the determining module 303 is configured to determine the influence degrees of the multiple preset factors according to the change sensitivities of the multiple preset factors.
Optionally, the calculation module 301 comprises:
the first calculating unit is used for calculating the change rate and the comprehensive load rate change rate of each sub-factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions;
the second calculation unit is used for calculating the weighted average change rate of each preset factor according to the change rate of a plurality of sub-factors included in each preset factor;
the third calculating unit is used for calculating the weighted average change rate of the comprehensive load rate of each preset factor according to the comprehensive load rate change rate of a plurality of sub-factors included in each preset factor;
and the fourth calculating unit is used for calculating the change sensitivity of each preset factor according to the weighted average change rate of each preset factor and the weighted average change rate of the comprehensive load rate.
Alternatively, the calculation formula of the change rate of each of the sub-factors included in the preset factors is as follows:
the calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
Optionally, the calculation formula of the second calculation unit is:
the third calculation unit adopts a calculation formula as follows:
the fourth calculating unit adopts a calculation formula as follows:
in the formula,
p-Preset factor MlThe number of sub-factors involved.
Optionally, the process of calculating the comprehensive load rate change rate of the sub-factors included in each preset factor by the first calculating unit is as follows:
respectively acquiring actual values and design values of a plurality of evaluation factors of a plurality of stations or pipelines of a pipe network under a plurality of preset working conditions corresponding to the sub-factors included in each preset factor;
calculating the operation load rate of each evaluation factor of each station and pipeline of each sub-factor under each preset working condition according to the actual value and the design value of each evaluation factor of each station or pipeline of each sub-factor under each preset working condition;
calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of the plurality of stations or pipelines under each preset working condition of each sub-factor;
calculating the comprehensive load rate of each sub-factor under each preset working condition according to the load rate of each sub-factor under each preset working condition of the same evaluation factor of a plurality of stations;
and calculating the comprehensive load rate change rate of each sub-factor according to the comprehensive load rate of each sub-factor under a plurality of preset working conditions.
Optionally, the determining module 303 is specifically configured to:
carrying out normalization processing on the change sensitivities of the preset factors to obtain the normalized change sensitivities of the preset factors;
and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors.
Since the device embodiment and the method embodiment correspond to each other, the beneficial effects that can be brought are the same, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the method and apparatus provided are merely illustrative, for example, the division of the steps and modules is only one logical function division, and other division manners may be available in actual implementation. The method and the device can be realized by running corresponding software and hardware through a computer device. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for determining the influence degree of pipe network operation factors is characterized by comprising the following steps:
respectively obtaining a pipe network reference value corresponding to a plurality of preset factors, a change value of a plurality of sub-factors included by each preset factor and an operation value of each sub-factor under a plurality of working conditions;
calculating to obtain the change sensitivity of each preset factor according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the operation value of each sub-factor under a plurality of working conditions, wherein the change value of the sub-factor included by each preset factor refers to the maximum difference value of the operation values of the corresponding sub-factors under the plurality of working conditions;
determining the influence degrees of the preset factors according to the change sensitivity of the preset factors;
wherein, the calculating, according to the pipe network reference value corresponding to each preset factor, the variation value of the plurality of sub-factors included by each preset factor, and the operation value of each sub-factor under a plurality of working conditions, to obtain the variation sensitivity of each preset factor includes:
calculating the change rate of each sub-factor and the change rate of the comprehensive load rate according to the pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions, wherein the calculation formula of the change rate of the sub-factors included by each preset factor is as follows:
the calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
calculating the weighted average change rate of each preset factor according to the change rate of a plurality of sub-factors included in each preset factor, wherein the calculation formula of the weighted average change rate of each preset factor is as follows:
calculating the weighted average change rate of the comprehensive load rate of each preset factor according to the change rate of the comprehensive load rate of a plurality of sub-factors included in each preset factor, wherein the calculation formula of the weighted average change rate of the comprehensive load rate of each preset factor is as follows:
calculating the change sensitivity of each preset factor according to the weighted average change rate of each preset factor and the weighted average change rate of the comprehensive load rate, wherein the calculation formula of the change sensitivity of each preset factor is as follows:
wherein,
p-Preset factor MlThe number of sub-factors involved.
2. The method for determining the influence degree of the pipe network operation factors according to claim 1, wherein the calculation process of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
respectively acquiring actual values and design values of a plurality of evaluation factors of a plurality of stations or pipelines of a pipe network under a plurality of preset working conditions corresponding to the sub-factors included in each preset factor;
calculating the operation load rate of each evaluation factor of each station and pipeline of each sub-factor under each preset working condition according to the actual value and the design value of each evaluation factor of each station or pipeline of each sub-factor under each preset working condition;
calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of the plurality of stations or pipelines under each preset working condition of each sub-factor;
calculating the comprehensive load rate of each sub-factor under each preset working condition according to the load rate of each sub-factor under each preset working condition of the same evaluation factor of a plurality of stations;
and calculating the comprehensive load rate change rate of each sub-factor according to the comprehensive load rate of each sub-factor under a plurality of preset working conditions.
3. The method for determining the influence degree of the pipe network operation factor according to claim 1, wherein the determining the influence degree of the plurality of preset factors according to the variation sensitivity of the plurality of preset factors comprises:
carrying out normalization processing on the change sensitivities of the preset factors to obtain the normalized change sensitivities of the preset factors;
and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors.
4. An apparatus for determining a degree of influence of a pipe network operation factor, comprising:
the acquisition module is used for respectively acquiring a pipe network reference value corresponding to a plurality of preset factors, a change value of a plurality of sub-factors included by each preset factor and an operation value of each sub-factor under a plurality of working conditions;
the calculation module is used for calculating and obtaining the change sensitivity of each preset factor according to a pipe network reference value corresponding to each preset factor, the change value of a plurality of sub-factors included by each preset factor and the operation value of each sub-factor under a plurality of working conditions, wherein the change value of the sub-factor included by each preset factor refers to the maximum difference value of the operation values of the corresponding sub-factors under the plurality of working conditions;
the determining module is used for determining the influence degrees of the preset factors according to the change sensitivity of the preset factors;
wherein the calculation module comprises:
the first calculating unit is used for calculating the change rate of each sub-factor and the comprehensive load rate change rate according to the pipe network reference value corresponding to each preset factor, the change value of the plurality of sub-factors included by each preset factor and the running value of each sub-factor under a plurality of working conditions, wherein the calculation formula of the change rate of the sub-factors included by each preset factor is as follows:
the calculation formula of the comprehensive load rate change rate of the sub-factors included in each preset factor is as follows:
in the formula,
the second calculating unit is used for calculating the weighted average change rate of each preset factor according to the change rate of a plurality of sub-factors included in each preset factor, wherein the calculation formula of the weighted average change rate of each preset factor is as follows:
the third calculating unit is configured to calculate a weighted average change rate of the comprehensive load rate of each preset factor according to the change rate of the comprehensive load rate of the plurality of sub-factors included in each preset factor, where a calculation formula of the weighted average change rate of the comprehensive load rate of each preset factor is:
a fourth calculating unit, configured to calculate a change sensitivity of each preset factor according to the weighted average change rate of each preset factor and the weighted average change rate of the comprehensive load factor, where a calculation formula of the change sensitivity of each preset factor is:
wherein,
p-Preset factor MlThe number of sub-factors involved.
5. The device for determining the influence degree of the pipe network operation factors according to claim 4, wherein the process of calculating the comprehensive load rate change rate of the sub-factors included in each preset factor by the first calculating unit is as follows:
respectively acquiring actual values and design values of a plurality of evaluation factors of a plurality of stations or pipelines of a pipe network under a plurality of preset working conditions corresponding to the sub-factors included in each preset factor;
calculating the operation load rate of each evaluation factor of each station and pipeline of each sub-factor under each preset working condition according to the actual value and the design value of each evaluation factor of each station or pipeline of each sub-factor under each preset working condition;
calculating the load rate of each evaluation factor of each sub-factor under each preset working condition according to the operation load rate of the same evaluation factor of the plurality of stations or pipelines under each preset working condition of each sub-factor;
calculating the comprehensive load rate of each sub-factor under each preset working condition according to the load rate of each sub-factor under each preset working condition of the same evaluation factor of a plurality of stations;
and calculating the comprehensive load rate change rate of each sub-factor according to the comprehensive load rate of each sub-factor under a plurality of preset working conditions.
6. The pipe network operation factor influence degree determination device according to claim 4, wherein the determination module is specifically configured to:
carrying out normalization processing on the change sensitivities of the preset factors to obtain the normalized change sensitivities of the preset factors;
and determining the influence degrees of the preset factors according to the normalized change sensitivity of the preset factors.
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