Electric energy balance monitoring method for coal-fired power plant
A coal-fired power plant, electric energy technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems affecting the production coal consumption of power plants, power supply coal consumption, comprehensive power supply coal consumption accounting, large deviations, etc., to promote mutual cooperation and save electricity The effect of work
Pending Publication Date: 2021-08-13
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Problems solved by technology
Since there are many electric energy meters involved in the statistics of the whole plant, there is often a large deviation between the total electric energy and the electric energy meters of each branch, which directly affects the accounting of the power plant's production coal consumption, power supply coal consumption and comprehensive power supply coal consumption
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[0060]Taking a 4 sets of 350MW + 2 sets of 660MW units as an example: 4 sets of 350MW subcritical units and two branches, two branches, one factory, two branches are separate 220kV boosting station systems Each two units are configured to have a start-up change, the factory power system is 6KV system, and the public 6KV system is received by the food hall, the electricity district electricity (non-production part) and the pier shore. Based on the power plant DCS system and SIS system, the full plant power flow map is drawn, and the important power meter is reviewed. The data is collected every minute. The statistics of the 2019 energy data is as follows, the No. 1 ~ No. 6 unit power flow direction map is like Figure 1-6 The power unit in the figure is: MWH.
[0061] from Figure 1-6 It can be seen that the unbalanced power of 1 to 6 units is 3061MW.H, -1487 mW.h, 22506MW.H, 17659MW.H, 8537 mw.h, 18072 mw.h, 1 to 6 unit factory The imbalance rate is 7.0%, 5.7%, 18.1%, 15.9%, 6.1%, 9...
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The invention relates to an electric energy balance monitoring method for a coal-fired power plant. The method comprises the steps of building an electric quantity flow direction decomposition diagram of the whole plant, collecting the accumulated electric quantity data of each node, carrying out accounting, consistency detection and re-check verification on the data, calculating the unbalanced electric quantity, sorting the collected accumulated electric quantity data according to the flow of each device, removing the abnormal data, drawing a performance curve of each set of equipment according to the collected equipment operation parameters by taking the design performance curve of each set of equipment as a background image, and obtaining the operation mode of the power consumption equipment and the parameters needing to be adjusted by combining the electric quantity data of each set of equipment and the curve area position of the operation condition point. According to the invention, through balance monitoring of electric energy of the coal-fired power plant, operation modes and parameter adjustment suggestions of the power consumption equipment can be obtained, a power saving direction is given, and mutual cooperation of the power consumption equipment for power saving work is promoted.
Description
Technical field [0001] The present invention relates to the field of coal-fired thermofer, and more particularly to a coal-fired power plant power equilibrium monitoring method. Background technique [0002] The power supply rate refers to the percentage of the unit time in the factory and power generation. The power supply rate includes the electricity rate of the integrated plant (including non-production and electricity) and the electricity rate of the production plant, and reducing the power supply rate. It means that the power plant is able to sell more Internet power outwards in the same power generation. Under the premise of safe operation of the unit, efforts to reduce the power supply rate is a major topic for energy saving and consumption consumption per electric plant. [0003] For coal-fired power plants, generator outlet power flows mainly include upper-screen power, high change, loss line loss, etc., factory high variables generally include dust removal, low change,...
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IPC IPC(8): G01R31/00G01D21/02
CPCG01R31/003G01D21/02
Inventor 王祝成梁昊陈敏王小华梅振峰姚胜薛晓垒彭小敏俞胜捷刘瑞鹏赵鹏李越丁奕文朱晋勇王晖
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD