Power system integrated scheduling method considering high-proportion renewable energy access

A technology for renewable energy and power systems, applied in the direction of AC networks with the same frequency from different sources, AC networks with energy trade/energy transmission rights, electrical components, etc., can solve coarse time resolution, not well Capture the uncertainties of renewable energy and weak adjustment capabilities

Active Publication Date: 2021-09-14
SHANDONG UNIV
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  • Application Information

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Problems solved by technology

[0006] However, adding additional standby and quick-response units to the system will significantly increase the investment cost; while more accurate renewable energy forecasting technology is still being explored, the current wind power forecasting error is generally 15% to 25% under the current technical level; and The rolling UC model using hour-level time granularity cannot c

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  • Power system integrated scheduling method considering high-proportion renewable energy access
  • Power system integrated scheduling method considering high-proportion renewable energy access
  • Power system integrated scheduling method considering high-proportion renewable energy access

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0037] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0038] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0039] Su...

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Abstract

The invention provides a power system integrated scheduling method considering high-proportion renewable energy access, and the method comprises the steps: building a multi-time granularity model, integrating the three parts of PFs in UC, ED and AGC, and building a power system integrated scheduling model considering high-proportion renewable energy access with the minimum total operation cost of a power system as an optimization target; constructing constraint conditions of the power system integrated scheduling model to obtain a power system integrated scheduling optimization model meeting each constraint condition; and carrying out robust optimization on uncertainty parameters in constraints of the power system integrated scheduling optimization model, solving the power system integrated scheduling optimization model after robust optimization, and obtaining a final scheduling scheme. According to the method, more renewable energy sources can be consumed for power generation, the load shedding amount and the wind curtailment amount are reduced, and the safety and economical efficiency of a power system are improved.

Description

technical field [0001] The invention belongs to the technical field of power system resource scheduling, and in particular relates to a power system integrated scheduling method considering the access of a high proportion of renewable energy. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The traditional short-term dispatching of power system is realized based on hierarchical mechanism, which optimizes different dispatching modules sequentially. For specific modules, different system operators in different countries choose different modules in their hierarchical mechanisms, such as day-ahead unit combination (UC), intraday unit combination (UC), economic dispatch (ED), automatic generation control (AGC ), Participation Factors (PFs) optimization, AGC, etc. In the hierarchical mechanism of sequential optimization, the output of the previ...

Claims

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Application Information

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IPC IPC(8): H02J3/06H02J3/00H02J3/38
CPCH02J3/06H02J3/008H02J3/38H02J2300/22H02J2300/28H02J2203/20Y02A30/60
Inventor 王明强李建营杨明王孟夏王成福董晓明苏亚王勇
Owner SHANDONG UNIV
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