Primary frequency modulation capability calculation monitoring method and system
A capability and calculation model technology, applied in the field of primary frequency regulation capability calculation and monitoring, can solve problems such as weak primary frequency regulation capability, troubles in power management and dispatching departments, neglect of primary frequency regulation capability, etc., and achieve high calculation accuracy
Active Publication Date: 2021-07-23
JIANGSU FRONTIER ELECTRIC TECH +1
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Problems solved by technology
[0003] In addition, for thermal power units, especially ultra-supercritical units, the throttling loss is the smallest when the control door is fully open, and the economy is the best, but the primary frequency regulation capability is the weakest. The problem that enterprises pursue the economic benefits of units and ignore the primary frequency regulation capability has long plagued power management. and scheduling department
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[0037] In order to make it possible to understand the invention, the advantages of the present invention can be more obvious and easy to understand, and the technical solutions in the embodiments of the present invention will be described, it is understood that the embodiments described below are merely the embodiments of the present invention. Not all embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.
[0038] A modular frequency calculation method,
[0039] Get the main vapor valve opening degree of the heating unit, real-time main steam temperature and main steam pressure;
[0040] Enter the pre-training calculation model, output real-time real power prediction values and standard coal consumption predictive values;
[0041] Get real-time values of the current real power, the real-time calculation value of the real-time value of the real-time value of ...
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The invention discloses a primary frequency modulation capacity calculation monitoring method and system. The method comprises the steps of obtaining the opening degree of a main steam valve, the real-time main steam temperature and the main steam pressure of a heat supply unit; inputting into a pre-trained calculation model, and outputting a real-time actual power prediction value and a standard coal consumption prediction value; performing difference operation on the actual power prediction value and the real-time value of the current actual power to obtain a real-time calculation value of the primary frequency modulation capability; performing difference operation on the standard coal consumption predicted value and the standard coal consumption under the corresponding load under the theoretical sliding pressure condition of the unit to obtain the standard coal consumption loss under the current primary frequency modulation capability condition; and performing curve display by taking the real-time calculation value of the primary frequency modulation capability as an abscissa and taking the standard coal consumption loss as an ordinate. The invention has the advantages that the calculation precision is higher, meanwhile, the self-learning correction capacity is achieved, and a basis is provided for better knowing the primary frequency modulation margin of the unit and the economical efficiency lost by the thermal power generating unit.
Description
Technical field [0001] The present invention relates to a one-time frequency modulation capability calculation monitoring method and system, belonging to the field of thermal power engineering and thermal control technology in power plant. Background technique [0002] At this stage, the power grid dispatching mechanism can only be used to determine a frequency modulation effect after monitoring the system actions by one frequency modulation online, and the continuous monitoring unit cannot be determined in real time. Therefore, in the different conditions of the grid, it is necessary to evaluate an online assessment of the power network of the power grid, so that the grid can have sufficient magnifier capability under the changing load requirements, thereby enabling the operating state of the grid with higher controllable Sex, improve the ability of large grids to pay load mutations. [0003] In addition, for the smallest loss of the thermal power unit, in particular the super-c...
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IPC IPC(8): G06F30/27G06N3/08G06F113/04
CPCG06F30/27G06N3/08G06F2113/04
Inventor 殳建军崔晓波于国强高爱民张天海杨小龙胡尊民张卫庆史毅越
Owner JIANGSU FRONTIER ELECTRIC TECH