Minor-cycle real-time generation schedule

A technology of real-time power generation planning and power generation planning, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problem of not particularly high precision, achieve the effect of reducing workload, improving effectiveness and economy, and improving work efficiency

Active Publication Date: 2013-04-17
CHINA ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

Common real-time power generation planning usually uses multiple planning values ​​for the next few hours at a time. On the one hand, the automatic power generation...

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  • Minor-cycle real-time generation schedule
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Embodiment Construction

[0033] The present invention provides a short-period real-time power generation plan. The real-time power generation plan is based on the coordinated dispatch of two-level dispatch centers. The two-level dispatch centers conduct unified dispatch and hierarchical management for the areas under their jurisdiction. The real-time power generation plan of the unit, however, these two parts of the unit are not isolated, so the coordination of the upper and lower dispatch centers to formulate the real-time power generation plan can handle the problem of power balance.

[0034]The short-period real-time power generation plan provided by the present invention makes good use of the change law of ultra-short-term load forecasting accuracy, and combines the characteristics of the upper and lower dispatching of the dispatching center to complete the small-period real-time power generation plan under the condition of ensuring power balance as much as possible Customization, the flow chart of...

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Abstract

The invention provides a minor-cycle real-time generation schedule, which comprises the following steps of: S1, determining units participating in real-time generation schedule computing by two stages of dispatching centers; S2, judging whether the difference between a load predicted value Ps used by an intraday generation schedule in the next schedule time and an ultra-short-term load predicted value Ps' used by the intraday generation schedule in the next schedule time is equal to 0 or not, if the difference is equal to 0, executing the step S7, and if the difference is not equal to 0, executing the step S3; S3, respectively working out load deviation values deltaPs,A and deltaPs,B which need to be respectively borne by the units which respectively correspond to the two stages of dispatching centers in the next time; S4, performing statistics adjustable capacity sums deltaPC,A and deltaPC,B of the units which respectively correspond to the two stages of dispatching centers; S5, working out load deviation values deltaPLF,A and deltaPLF,B respectively and finally distributed by the two stages of dispatching centers; S6, working out the adjustment power of every unit of the two stages of dispatching centers; and S7, executing the step S1 after the real-time generation schedule of each unit is obtained. Only the predicted values in the next schedule time are used every time, so that the output of each unit more approaches to the requirement of an actual load.

Description

technical field [0001] The invention relates to the technical field of electric power system scheduling automation, in particular to a short-period real-time power generation plan. Background technique [0002] The power generation plan formulated by the power dispatching center is to make rational use of power generation resources, and on the basis of meeting the electricity demand of power users, ensure the balance of power generation and consumption as much as possible, maintain the stability of the grid frequency, reduce losses, and ensure the safe operation of the grid and reliable power supply. [0003] The accuracy of predicting the operating state of the power system is usually affected by the time period. The closer the prediction time point is to the current state, the better the actual state can be fully utilized, making the prediction more accurate. The medium and long-term power generation plan mainly focuses on the control of electricity. [0004] Short-term p...

Claims

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Application Information

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IPC IPC(8): H02J3/46
Inventor 燕京华周京阳潘毅崔晖戴赛
Owner CHINA ELECTRIC POWER RES INST
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