A fitting method and system for power generation fuel cost of a thermal power generating unit
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A thermal power unit and power generation fuel technology, applied in the direction of system integration technology, information technology support system, data processing application, etc., can solve the problems of inability to guarantee the minimum fitting error, large error, cost error and economical operation results, etc.
Active Publication Date: 2019-06-04
CHINA ELECTRIC POWER RES INST +1
View PDF3 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This segmentation method is relatively simple, but the disadvantage is that the overall fitting error cannot be guaranteed to be the smallest, especially when the generating power of the thermal power unit is ...
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0077] like figure 1 Shown:
[0078] Step 1: Obtain the thermal power generation power and fuel cost;
[0079] Step 2: Bring the thermal power generation power, fuel cost and the set number of line segment intervals into the pre-built secondary objective optimization model;
[0080] Step 3: Calculate and solve the quadratic objective optimization model to obtain the fuel costs at the end points of the thermal power generation power range and at the subsections.
[0081] The above-mentioned steps are further explained below in conjunction with specific embodiments:
[0082] The explanation for step 1 is as follows:
[0083] The present invention proposes a piecewise linear fitting method for the cost of generating fuel for thermal power units, and establishes a secondary objective optimization model with the minimum sum of squared linear fitting errors as the optimization goal. By solving the secondary programming model, it can be obtained The discontinuity points of the pi...
Embodiment 2
[0134] The present invention also relates to a fitting system for the fuel cost of thermal power generating units, including:
[0135] Acquisition module: used to obtain thermal power generation power and fuel costs;
[0136] Bringing in module: used to bring the thermal power generation power, fuel cost and the set line segment interval quantity into the pre-built secondary objective optimization model, and abstract it;
[0137] Calculation module: It is used to calculate and solve the abstracted secondary objective optimization model, and obtain the fuel cost at the end point and segment of the power generation range of the thermal power unit.
[0138] Also includes quadratic objective optimization model building blocks;
[0139] The secondary objective optimization model building block is used to: set the piecewise linear function with the square sum of the fitting error as the objective function and the constraint condition;
[0140] The constraints include: optimal piec...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a fitting method and system for power generation fuel cost of a thermal power generating unit. The method comprises the following steps: acquiring data of the thermal power generating unit and the number of subsection intervals for fitting the fuel cost; Abstracting a pre-established piecewise linear optimal fitting optimization model into a mathematical form based on theacquired data and the number of piecewise intervals fitted by the fuel cost; And optimizing the abstracted mathematical form by adopting a reliability domain algorithm to obtain the endpoint of the power generation power subsection interval of the thermal power generating unit and the fuel cost at the endpoint. The invention discloses a fitting method and system for power generation fuel cost of athermal power generating unit. The method comprises the following steps: acquiring data of the thermal power generating unit and the number of subsection intervals fitted with the fuel cost; And optimizing the abstracted mathematical form by adopting a reliability domain algorithm to obtain a thermal power generating unit generating power subsection interval end point and the fuel cost at the endpoint, thereby greatly reducing the error of subsection linear fitting, and reducing the number of subsections required by a fuel cost function, thereby reducing the complexity and solving difficultyof a time sequence simulation optimization model.
Description
technical field [0001] The invention relates to a fitting method and system for fuel cost of thermal power generating units, which are used for accurately calculating the generating and operating costs of thermal generating units. Background technique [0002] Simulating the operation of conventional power sources and new energy sources in the power market environment through long-term time-series simulation is of great significance for quantitatively evaluating the operating economy and income of different types of power sources in the power market environment. Carrying out the economical operation simulation of the power system in the market environment needs to accurately calculate the power generation operation cost of conventional power sources such as thermal power units. [0003] The operating cost of power generation of thermal power units is mainly fuel costs, that is, the cost of coal and other fuels consumed by thermal power units. When a thermal power unit gener...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more