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A new energy generation scheduling method and system

A scheduling method and new energy technology, applied in wind power generation, photovoltaic power generation, electrical components, etc., to avoid the limitation of new energy output and maximize the consumption of new energy power generation.

Active Publication Date: 2021-04-30
CHINA ELECTRIC POWER RES INST +2
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  • Claims
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Problems solved by technology

[0004] The present invention proposes a new energy generation scheduling method and system to solve how to coordinate the safe operation of the system and the new energy consumption capacity

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  • A new energy generation scheduling method and system
  • A new energy generation scheduling method and system
  • A new energy generation scheduling method and system

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Embodiment Construction

[0056] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0057] The method designed in the present invention takes into account the probability distribution of new energy forecasting errors, and the proposed uncertain scheduling method can provide the planning curves of conventional units and new energy power plants in the planned time period, as well as system operation risks and probabilities.

[0058] Consider the forecast error within a certain range of confidence, and arrange unit combination and scheduling plan based on this, to meet the safe and stable operation of the system under the high probability of new energy power generation output, and connect the new energy power generation output outside the confidence range to the grid. Risk assessment, giving the risk level and probability, and guiding the actual scheduling operation.

[0059] Combine below figure 1 The sp...

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Abstract

A method and system for dispatching new energy power generation according to the present invention, comprising: collecting historical data of new energy power generation, determining the probability distribution of prediction errors; establishing a confidence interval based on the probability distribution of prediction errors; based on the constraint parameters of the predicted output band within the confidence interval, Determine the planned output curve; determine the risk value of power generation operation based on the planned output curve and the predicted output band outside the confidence interval. The invention formulates a dispatch plan for conventional units and new energy generation according to the predicted output within the confidence interval, and performs risk assessment on the predicted output outside the confidence interval based on the dispatch plan, so as to achieve the purpose of maximizing the consumption of new energy generation at an acceptable risk level.

Description

technical field [0001] The invention relates to the field of power system dispatching operation, in particular to a new energy generation dispatching method and system. Background technique [0002] New energy power generation is an important way to solve energy shortage and environmental pollution. Affected by the weather, the output of new energy power generation has strong uncertainties. Large-scale new energy power generation connected to the power system will bring operational risks such as flow limit and voltage limit, which will bring certain risks to the grid dispatching operation. challenge. [0003] The existing optimal scheduling operation technology including large-scale new energy power generation is based on new energy power prediction, and considers new energy power prediction errors and various security constraints of power grid operation, including system peak regulation constraints, grid constraints and unit start-stop time Constraints, etc., with the goa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/382H02J3/383H02J3/386H02J3/46H02J2203/20Y02E10/56Y02E10/76
Inventor 许晓艳黄越辉王伟胜刘纯王跃峰戚永志杨硕马烁李湃礼晓飞张楠许彦平李驰潘霄峰王晶
Owner CHINA ELECTRIC POWER RES INST
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