Real-time power generation schedule correcting method of power plant

Abstract

The invention discloses a real-time power generation schedule correcting method of a power plant. The real-time power generation scheduling correcting method comprises the steps of: obtaining a real-time prediction result of the whole network load; forming an internetwork power generation schedule and a power plant power generation schedule; calculating a power generation load increment of a system within a period of time in future; comprehensively considering the coal consumption characteristic difference and the real-time control margin of each thermal power plant, on the premise of meeting the constraint conditions of the unit regulating rate and the regulating upper-lower limit, optimally allocating the power generation load increment among all thermal power plants; correcting the power generation schedule of each thermal power plant; carrying out tide checking, stable section checking and static safety analysis checking on the corrected real-time power generation schedules to ensure that the corrected power generation schedules do not go against the power grid safety constraint; and sending the corrected real-time power generation schedules to an AGC (Automatic Generation Control) or issuing the corrected real-time power generation schedules to all thermal power plants to be executed. According to the method, the economical efficiency and safety of power grid operation are comprehensively considered, the day-ahead power generation schedules are optimized and regulated, and real-time power generation schedules meeting the power grid operation demands are provided to the AGC or issued to all thermal power plants to be executed.

Description

technical field [0001] The invention belongs to the technical field of power system power generation control, and specifically relates to a method for correcting real-time power generation plans of thermal power plants by using ultra-short-term load forecast results and comprehensive coal consumption of power plants. Background technique [0002] In the power system, except for some frequency-regulated power plants (usually served by hydropower plants), most power plants need to generate power according to the power generation plan. The plan used for real-time power generation of power plants is called real-time power generation plan, which is usually based on the day-ahead power generation plan, according to the results of ultra-short-term load forecasting, and under the premise of satisfying relevant constraints, the power generation plan is obtained through real-time adjustment. [0003] Judging from the actual operation of the current power dispatching center, most dispa...

AI Technical Summary

Problems solved by technology

The problems of this control mode are as follows: (1) The power generation plan lacks optimization, cannot reflect the economy, and the fairness is not easy to assess, so it is difficult to truly meet the "three public" dispatching or "energy saving" dispatching requirements; (2) The power generation plan lacks safety calibration (3) The manual adjustment workload of the dispatcher is heavy, especially when there is a large gap between the current power generation plan and the actual load, the manual adjustment will be very difficult, and the adjustment effect is not good

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