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Two-level Robust Unit Combination Method Based on Standby Tuning

A unit combination and robust technology, applied in data processing applications, instruments, wind power generation, etc., can solve problems such as difficulty in ensuring reliability and no scheduling solution

Active Publication Date: 2020-08-28
TSINGHUA UNIV
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Problems solved by technology

As the uncertainty of the equivalent load increases, it will be difficult to guarantee the reliability of the unit combination formulated according to the predicted scenario and the deterministic optimization method, that is, there may be a certain wind power output mode that makes it impossible for a given unit combination to be feasible. Scheduling solution

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  • Two-level Robust Unit Combination Method Based on Standby Tuning
  • Two-level Robust Unit Combination Method Based on Standby Tuning
  • Two-level Robust Unit Combination Method Based on Standby Tuning

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Embodiment Construction

[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] Based on the in-depth study of the impact mechanism of reserve capacity on the robustness of unit combination, this paper combines the traditional spinning reserve method with the principle of robust scheduling, and develops a two-layer robust unit combination method based on reserve setting.

[0050] Considering the two-stage decision-making characteristics of the robust unit combination, a natural idea is to decompose the unit state and unit output into two separate issues, and rely on a certain association mechanism to achieve the coordinated solution of the two. The spinning reserve ratio is just the right correlation mechanism for this kind of coordination. Th...

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Abstract

The invention provides a double-layer robust unit combination method based on reserve setting. The method comprises the steps that an optimal unit combination model and a robustness detection model are established; an optimal unit combination is acquired according to initial rotation percentage reserve and the optimal unit combination model; robustness detection is performed on the optimal unit combination through the robustness detection model, and robust indexes of the optimal unit combination are acquired; and corresponding operation is executed according to the size of the robust indexes,and finally a robust unit combination is acquired. A robust scheduling method is applied to unit combination, and robust unit combination of large-scale wind power connection is realized; when wind power fluctuates arbitrarily within a certain range, a system can run securely just by adjusting unit output, and an effective solution is provided for solving uncertainty of wind power output in a former power generation plan; and the method has the advantages that an executable scheduling scheme is provided for power generation system running personnel, and engine economy is improved.

Description

technical field [0001] The invention relates to the technical field of multi-energy power generation systems, and more specifically, to a two-layer robust unit combination method based on standby setting. Background technique [0002] The primary task of power system dispatching is to ensure the safe, stable and economical operation of the power grid, and to reliably provide high-quality power to various users. Source-load power balance plays a vital role in power supply quality and grid security. Since the system load changes with time and seasons, the working status and output of the unit also need to change accordingly. Therefore, making a reasonable power generation plan is an urgent problem to be solved for the safe and economical operation of the power system. [0003] The unit combination is an important part of the day-ahead power generation plan and the premise of economic dispatch and optimal power flow. According to the load forecast, the traditional unit combi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCG06Q50/06H02J3/386H02J3/48H02J2203/20Y02E10/76
Inventor 梅生伟方宇娟魏韡陈来军黄少伟
Owner TSINGHUA UNIV
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