CN103824132A - Product price calculation system of LNG (Liquefied Natural Gas) receiving station - Google Patents
Product price calculation system of LNG (Liquefied Natural Gas) receiving station Download PDFInfo
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- CN103824132A CN103824132A CN201410078512.XA CN201410078512A CN103824132A CN 103824132 A CN103824132 A CN 103824132A CN 201410078512 A CN201410078512 A CN 201410078512A CN 103824132 A CN103824132 A CN 103824132A
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Abstract
The invention discloses a product price calculation system of an LNG (Liquefied Natural Gas) receiving station. The product price calculation system comprises a data input module, a calculation module and a data output module which are connected in sequence, wherein the data input module is used for inputting project basic data and each tax rate needed by project evaluation; the calculation module comprises an economic indicator calculation module, a project economic model, a price calculation module, a mode converter module and a process controller module; the project economic model is connected with the economic indicator calculation module and the price calculation module; the mode converter module is connected with the project economic model; the process controller module is connected with the price calculation module; the data output module is used for outputting a calculation result; all the modules are arranged in the system. The system disclosed by the invention can be used for calculating a product price according to an indication value of economic evaluation. A price calculation process adopts an iteration method with the very strong commonality and is not sensitive to a function relation between a price and an indicator; a calculation rule does not need to be changed aiming at different pre-set indicators.
Description
Technical field
The present invention relates to a kind of product price measuring method, specifically, relate to a kind of LNG receiving station product price calculating system.
Background technology
Along with the fast development of Gas Industry in recent years, international rock gas volume of trade constantly increases.The rock gas trade of sea route adopts special LNG(Liquid Nature Gas) cargo ship transports rock gas.Correspondingly, landly also need to have special receiving station LNG is received and gasify.Because the LNG receiving station project of China is started late, the product price measuring method that present stage adopts lacks certain standardization, and therefore, this LNG receiving station Price Estimate system has suitable necessity and perspective.
The pricing model of rock gas belongs to and fixed a price by the control of government regulation, and under control pricing model, product price is made up of the cost price of enterprise operation and certain rate of profit, and this just requires us will be take the economic target of project as the price according to determining product.On this basis, enterprise can consider that different management modes is to increase the benefit, and decision maker considers and just becomes necessary the factor such as economic target, product price of project under different mode.
The core of product price measuring and calculating configures computing formula and computation model exactly.At present domestic technical scheme adopts the measuring and calculating mode of human configuration conventionally, and measuring and calculating process lacks science and standardization, and poor stability, the subjective degree of measuring and calculating conclusion are high, narrow application range.Because the variable that affects LNG receiving station product price is very many and funtcional relationship is complicated, adopt inverse function method to product price calculate very complicated and versatility a little less than.And adopt the method for iteration measuring and calculating to calculate product price, can well overcome the difficulty that inverse function method runs into and have versatility concurrently.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of LNG receiving station product price calculating system is provided.
For achieving the above object, the present invention realizes by the following technical solutions:
One LNG receiving station product price calculating system, comprises the data input module, computing module and the data outputting module that connect successively;
Described data input module is for every expenses of taxation rate of cuit basic data and project evaluation needs;
Described computing module comprises economic target computing module, project economic model, Price Estimate module, mode converter module and process controller module; Project economic model connects respectively economic target computing module and Price Estimate module, mode converter module interlocking item economic model, and process controller module connects Price Estimate module;
Described project economic model is provided with every data according to item types, has also comprised the forward funtcional relationship between each parameter and index;
Described economic target computing module, for according to the relation of the each parameter of project economic model and index, calculates relevant project economic target result;
Described Price Estimate module, user presets desired value, take the funtcional relationship between parameter and index in project economic model as basis, constantly changes the value of product price, makes the desired value that tentative calculation obtains constantly approach default desired value;
Described mode converter module is by realizing the conversion of management mode to the relation adjustment between relevant subitem in project economic model;
Described process controller module makes product price measuring and calculating module jump out iterative process by degree of closeness or the tentative calculation number of times of judging tentative calculation desired value and default desired value, and result of calculation is not restrained and diagnosed;
Described data outputting module is used for exporting result of calculation;
Above-mentioned module is all arranged in system.
At above-mentioned LNG receiving station product price calculating system, result of calculation is exported as EXCEL file by described data outputting module.
At above-mentioned LNG receiving station product price calculating system, in described Price Estimate module, product price and other parameter are independent variable, and economic evaluation index is dependent variable.
At above-mentioned LNG receiving station product price calculating system, described Price Estimate module is the desired value that first sets economic evaluation index, choose the price of product, if the economic evaluation index under this price and desired value difference are larger, change again the price of product, obtain next economic evaluation index value; Be less than a certain particular value if the economic evaluation index obtaining and desired value differ, stop; In tentative calculation process, the price of product determined by Price Estimate function, and described Price Estimate function is iteration function.
At above-mentioned LNG receiving station product price calculating system; the precision of the results of measuring of described Price Estimate module and process end condition are by process controller module controls; process controller module does not also restrain and eliminates what occur in iterative process simultaneously, protected data validity and integrality.
Compared with prior art, the present invention has following beneficial effect: LNG of the present invention receiving station product price calculating system can calculate product price according to the desired value of economic evaluation.Price Estimate process adopts the process of iteration that a kind of versatility is very strong, insensitive to the funtcional relationship between price and index, without changing its computation rule for different default indexs.Due to versatility and the independence of Price Estimate module, we only need to be by mode converter between the partial service to project economic model and index relation modify and computing module only need slightly be changed the sensing of variable, can realize the economic target of project and product price measuring and calculating in the switching of always buying between the pattern of always selling and gasification cooked mode.The Price Estimate technology that the present invention adopts is insensitive to the funtcional relationship between item argument and economic evaluation index, have very strong versatility, user can not need according to item types change parameter and index product price measuring and calculating module to do too much change.
Accompanying drawing explanation
Fig. 1 is the structural representation of LNG receiving station product price calculating system.
Embodiment
In order to make of the present inventionly to realize technological means, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, a kind of LNG receiving station product price calculating system, comprises the data input module 1, computing module 2 and the data outputting module 3 that connect successively; Described data input module 1 is for every expenses of taxation rate of cuit basic data and project evaluation needs; Described computing module 2 comprises economic target computing module 21, project economic model 22, Price Estimate module 23, mode converter module 24 and process controller module 25; Project economic model 22 connects respectively economic target computing module 21 and Price Estimate module 23, mode converter module 24 interlocking item economic models 22, and process controller module 25 connects Price Estimate module 23; Described project economic model 22 is provided with every data according to item types, has also comprised the forward funtcional relationship between each parameter and index; Described economic target computing module 21, for according to the relation of the each parameter of project economic model and index, calculates relevant project economic target result; Described Price Estimate module 23, user presets desired value, take the funtcional relationship between parameter and index in project economic model as basis, constantly changes the value of product price, makes the desired value that tentative calculation obtains constantly approach default desired value; Described mode converter module 24 is by realizing the conversion of management mode to the relation adjustment between relevant subitem in project economic model; Described process controller module 25 makes product price measuring and calculating module jump out iterative process by degree of closeness or the tentative calculation number of times of judging tentative calculation desired value and default desired value, and result of calculation is not restrained and diagnosed; Described data outputting module 3 is for exporting result of calculation; Above-mentioned module is all arranged in system.
When work, every data storing of project is in project economic model 22, and project economic model 22 has also comprised the forward funtcional relationship between each parameter and index simultaneously.According to item types, to build in advance and calculate the project economic model of using, it comprises the relation between each parameter and evaluation index.The formula of computation model can be modified to correlation formula according to business change.
By data input module 1, every basic data of user's cuit.
By economic target computing module 21, system can calculate according to the funtcional relationship between each parameter in project economic model 22 value of economic target.
By mode converter module 24, system is by realizing the conversion of the different management modes of enterprise to the adjustment of related service and sub-inter-item relationship in project economic model 22.
Calculate module 23 by product price, user presets desired value, and system, take the funtcional relationship between parameter and index in project economic model 22 as basis, constantly changes the value of product price, makes the desired value that tentative calculation obtains constantly approach default desired value.
LNG of the present invention receiving station product price calculating system, selects different project economic models for different item typess.Can directly calculate the value of every economic evaluation index by the funtcional relationship in project economic model, in addition, also can, by the default target value that refers to, use process of iteration to calculate the price of Project Product.
Claims (6)
1. a LNG receiving station product price calculating system, is characterized in that: comprise the data input module, computing module and the data outputting module that connect successively;
Described data input module is for every expenses of taxation rate of cuit basic data and project evaluation needs;
Described computing module comprises economic target computing module, project economic model, Price Estimate module, mode converter module and process controller module; Project economic model connects respectively economic target computing module and Price Estimate module, mode converter module interlocking item economic model, and process controller module connects Price Estimate module;
Described project economic model is provided with every data according to item types, has also comprised the forward funtcional relationship between each parameter and index;
Described economic target computing module, for according to the relation of the each parameter of project economic model and index, calculates relevant project economic target result;
Described Price Estimate module, user presets desired value, take the funtcional relationship between parameter and index in project economic model as basis, constantly changes the value of product price, makes the desired value that tentative calculation obtains constantly approach default desired value;
Described mode converter module is by realizing the conversion of management mode to the relation adjustment between relevant subitem in project economic model;
Described process controller module makes product price measuring and calculating module jump out iterative process by degree of closeness or the tentative calculation number of times of judging tentative calculation desired value and default desired value, and result of calculation is not restrained and diagnosed;
Described data outputting module is used for exporting result of calculation;
Above-mentioned module is all arranged in system.
2. LNG as claimed in claim 1 receiving station product price calculating system, is characterized in that, result of calculation is exported as EXCEL file by described data outputting module.
3. LNG as claimed in claim 1 receiving station product price calculating system, is characterized in that, in described Price Estimate module, product price and other parameter are independent variable, and economic evaluation index is dependent variable.
4. LNG as claimed in claim 1 receiving station product price calculating system, it is characterized in that, described Price Estimate module is the desired value that first sets economic evaluation index, choose the price of product, if the economic evaluation index under this price and desired value difference are larger, change again the price of product, obtain next economic evaluation index value; Be less than a certain particular value if the economic evaluation index obtaining and desired value differ, stop; In tentative calculation process, the price of product is determined by Price Estimate function.
5. LNG as claimed in claim 4 receiving station product price calculating system, is characterized in that, described Price Estimate function is iteration function.
6. LNG as claimed in claim 1 receiving station product price calculating system; it is characterized in that; the precision of the results of measuring of described Price Estimate module and process end condition are by process controller module controls; process controller module does not also restrain and eliminates what occur in iterative process simultaneously, protected data validity and integrality.
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Cited By (1)
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CN111222925A (en) * | 2020-04-17 | 2020-06-02 | 上海中旖能源科技有限公司 | Method and device for calculating energy source to shore price |
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WO2013071414A1 (en) * | 2011-11-14 | 2013-05-23 | Energent Incorporated | System, method and computer program for forecasting energy price |
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CN111222925A (en) * | 2020-04-17 | 2020-06-02 | 上海中旖能源科技有限公司 | Method and device for calculating energy source to shore price |
CN111222925B (en) * | 2020-04-17 | 2020-10-30 | 上海中旖能源科技有限公司 | Method and device for calculating energy source to shore price |
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