Two-stage full-cycle rolling scheduling method

A scheduling method and a full-cycle technology, applied in load forecasting in AC networks, load balancing in AC networks, power generation forecasting in AC networks, etc., can solve problems such as ignoring benefits, improve scheduling efficiency, reduce operating costs, Anti-peak shaving characteristic smoothing effect

Pending Publication Date: 2022-05-10
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the current research, the length of the intraday scheduling period is fixed (usually the next 2 hours), resulting in the scheduling plan only considering the current intraday scheduling period and ignoring the benefits of the remaining time in the whole day

Method used

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  • Two-stage full-cycle rolling scheduling method
  • Two-stage full-cycle rolling scheduling method
  • Two-stage full-cycle rolling scheduling method

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Embodiment

[0087] This embodiment provides a two-stage full-cycle rolling scheduling method, which can efficiently realize low-cost energy storage resource scheduling while ensuring a good effect of peak shaving and valley filling, and provides guidance for rolling scheduling of power systems. Such as figure 1 As shown, first establish the day-ahead and intra-day rolling scheduling framework, execute the day-ahead scheduling calculation, execute the calculation of each segment parameter of the intraday scheduling model, and execute the four parts of the intraday scheduling calculation.

[0088] The first part, establishing the day-ahead and intraday rolling scheduling framework:

[0089] The day-ahead scheduling calculation is performed every 24 hours, and the day-ahead scheduling calculation is performed every time 24 hours are reached, such as figure 2 As shown, after executing the day-ahead scheduling calculation, judge whether it has reached 15 minutes, and if so, execute the calcu...

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Abstract

The invention discloses a two-stage full-cycle rolling scheduling method, and belongs to the field of power system automation. Comprising the following steps: step 1, establishing a day-ahead scheduling model, and executing day-ahead scheduling calculation; step 2, calculating each segment parameter of the intra-day scheduling model; and step 3, establishing an intra-day scheduling model, and performing intra-day scheduling calculation according to calculation results of the step 1 and the step 2. According to the method, a rolling scheduling method is adopted, a day-ahead scheduling result and an intra-day scheduling result are updated according to recent prediction results of loads and renewable energy sources, the scheduling accuracy and the calculation efficiency are improved by setting the length of a scheduling range, optimal configuration solution is carried out on different types of resources in all stages, and social welfare optimization is achieved.

Description

technical field [0001] The invention belongs to the field of power system automation, and more specifically relates to a two-stage full-cycle rolling scheduling method. Background technique [0002] The development of renewable energy has made outstanding contributions to reducing the burning of fossil fuels and promoting sustainable social development. Integrating renewable resources into electricity networks, especially in large grids, poses several technical and operational challenges. Traditionally, power systems have relied on conventional generators to smooth out the fluctuations and uncertainties in renewable energy generation. With high penetration of renewable resources, the role of traditional generators will change from primary energy supply to reserve and backup generation for intermittent renewable resources. In recent years, the rapid development of adjustable loads and electric vehicles has provided abundant load-side dispatching resources, and provided a wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46H02J3/32
CPCH02J3/004H02J3/003H02J3/466H02J3/32H02J2203/10H02J2203/20
Inventor 包宇庆乔惟卓
Owner NANJING NORMAL UNIVERSITY
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