Online coal consumption curve real-time generation method and system
A technology for generating systems and curves, applied in the direction of system integration technology, information technology support systems, instruments, etc., can solve the problems of rising coal consumption of power grids and generating units, not considering the coal consumption of thermal power generating units, and declining economy.
Active Publication Date: 2021-03-16
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
[0004] The technical problem solved by the present invention is: to provide a method and system for generating an online coal consumption curve in real time, to solve the problem that the existing technology does not consider the actual coal consumption of thermal power units, but simply uses fixed a, b, and c coefficient values, resulting in After the unit receives the AGC (Automatic Generation Control) adjustment command from the dispatching agency, it adjusts the output of the unit to adjust the deviation, which leads to technical problems such as increased coal consumption and economical decline in the power grid and unit operation.
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[0064] The main steps of the inventive method are:
[0065] 1. Collect historical unit information and real-time unit information of all m thermal power units in the entire network, and construct historical information θ={tθ,Pθ,Bθ} and real-time information
[0066] (1) Among them, in the historical unit information θ={tθ,Pθ,Bθ} of the thermal power unit, the historical unit information of the i-th unit at the j-th moment is θ ij ={tθ ij , Pθ ij ,Bθ ij}, where i∈m, j∈n.
[0067] tθ is: the historical time data of the unit, which is used to mark the time value corresponding to the historical active power data and historical coal consumption data of the unit. The time scale format of the time is year: month: day: hour: minute: second.
[0068] Pθ is: the historical active power data of the unit.
[0069] Bθ is: the historical coal consumption data of the unit.
[0070] (2) Among them, the real-time unit information of thermal power units Among them, the real-time unit ...
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The invention discloses an online coal consumption curve real-time generation method and system. The method comprises the following steps: collecting the historical unit information and real-time unitinformation of all the m thermal power units in a whole network, constructing a historical information set theta which is equal to {t(theta), P(theta) and B(theta)} and a real-time information set sigma which is equal to {t(sigma) and P(sigma)}, and calculating the coal consumption curve function of the i unit through a least square support vector machine to obtain a first coal consumption curve; calculating a coal consumption curve function of the i unit through a polynomial method to obtain a second coal consumption curve; weighting the first coal consumption curve and the second coal consumption curve to generate a comprehensive coal consumption curve; and correcting the comprehensive coal consumption curve in real time by utilizing the real-time unit information of the thermalpower generating unit. The method overcomes the technical problems of coal consumption increase, economic performance deterioration and the like of power grid and unit operation caused by unit outputadjustment deviation after a thermal power unit receives an AGC adjustment instruction of a dispatching mechanism due to fixed coefficient values of a, b and c.
Description
technical field [0001] The invention belongs to the technical field of grid power generation dispatching control, and in particular relates to a method and system for generating an online coal consumption curve in real time. Background technique [0002] As a high-energy-consuming industry, electric power is the focus of energy conservation and emission reduction. It has great potential and broad prospects for energy conservation and consumption reduction. It is also a key link to promote the development of the electric power industry, deepen the reform of the electric power system, and improve the level of electric power management. Establish a competitive environment for power generation based on energy consumption and emission levels, improve the power dispatching operation mode, promote the structural adjustment, technological progress and industrial upgrading of the power industry, accelerate the elimination of backward production capacity, improve the efficiency of ener...
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IPC IPC(8): H02J3/00H02J3/38H02J3/48H02J13/00G06F16/9038G06K9/62
CPCH02J3/00H02J3/381H02J3/48H02J13/00006H02J13/00016H02J13/00028G06F16/9038H02J2203/20G06F18/214Y04S10/12Y02E40/70Y04S40/124Y04S40/12Y02E60/00
Inventor 文贤馗范强陈园园邓彤天钟晶亮张世海古庭赟李博文祝健杨
Owner GUIZHOU POWER GRID CO LTD