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Renewable energy cluster output distributed coordination control method considering uncertainty

A renewable energy, distributed coordination technology, applied in the direction of AC network circuits, electrical components, single-network parallel feeding arrangements, etc., can solve the problem of distributed control system not yet effective application of renewable energy cluster output control. , to achieve the effect of cluster friendly grid connection and adaptive coordination, good robustness and flexibility, maintaining independence and autonomy and operating information privacy

Active Publication Date: 2021-06-29
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

However, the distributed control system has not been effectively applied in the output control problem of renewable energy clusters

Method used

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  • Renewable energy cluster output distributed coordination control method considering uncertainty
  • Renewable energy cluster output distributed coordination control method considering uncertainty
  • Renewable energy cluster output distributed coordination control method considering uncertainty

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Embodiment Construction

[0066] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0067] In order to deal with the adverse effect of the inherent uncertainty of wind and solar energy on the control accuracy, and aiming at the problem that the traditional cluster output optimization model fails to fully consider the uncertainty, the present invention is based on the TSL distribution (T location-scale distribution, which contains scale parameters and the T distribution of posit...

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Abstract

The invention discloses a renewable energy cluster output distributed coordination control method considering uncertainty, and belongs to the field of power system optimization control. In order to cope with the adverse effect of wind and light energy uncertainty on regulation and control precision, aiming at the problem that the uncertainty of a traditional cluster output optimization model cannot be fully considered, an optimization model and strategy considering output uncertainty are constructed based on TSL distribution; meanwhile, in the aspects of information architecture and implementation mode on which coordination control depends, aiming at the defects of high calculation complexity, long data acquisition period, high communication pressure and the like existing in a traditional centralized mode, the invention provides a method for better adapting to the characteristics of frequent data interaction, high communication timeliness requirement and the like of a proposed optimization model considering uncertainty, distributed calculation solution is realized based on a multi-agent system theory, so that the calculation scale and the communication pressure are reduced, and fault separation and risk dispersion are realized. On the whole, the renewable energy cluster control precision, robustness and flexibility can be improved.

Description

technical field [0001] The invention belongs to the field of power system optimization control, and more specifically relates to a distributed coordinated control method for cluster output of renewable energy sources considering uncertainty. Background technique [0002] In response to energy and climate issues, the installed capacity of renewable energy such as wind and light has grown rapidly. Faced with the emerging difficulties of large-scale bases in terms of consumption and delivery, the renewable energy development model has gradually changed from a large-scale, long-distance, and centralized traditional model to a new model that combines bases and decentralization, and adapts measures to local conditions. The current control method often does not limit the wind and solar power when the grid reserve is sufficient, but cuts off a large number of wind and solar power when the grid reserve is insufficient, and the management is relatively extensive, resulting in signific...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCH02J3/466H02J2203/20
Inventor 罗毅韩越钱敏慧
Owner HUAZHONG UNIV OF SCI & TECH
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