Evaluation method of intermittent energy generating capacity confidence considering network constraint

A technology of energy generation and network constraints, which is applied in the direction of AC network circuits, circuit devices, electrical components, etc., and can solve problems such as unaccounted for network constraints

Active Publication Date: 2016-03-23
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

Some existing technologies consider the correlation between wind power, but do not

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  • Evaluation method of intermittent energy generating capacity confidence considering network constraint
  • Evaluation method of intermittent energy generating capacity confidence considering network constraint
  • Evaluation method of intermittent energy generating capacity confidence considering network constraint

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Embodiment Construction

[0050] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. The scope of embodiments of the present invention includes the full scope of the claims, and all available equivalents of the claims. These embodiments of the present invention may be referred to herein, individually or collectively, by the term "invention", which is for convenience only and is not...

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Abstract

The invention relates to an evaluation method of an intermittent energy generating capacity confidence considering network constraint. The method includes: obtaining a planning year power grid plan typical operation mode; sampling time series data G (t) of annual conventional units, loads, and line commissioning by employing the sequential Monte Carlo simulation technology; performing wind-power annual output time series sampling by employing the sequential Monte Carlo simulation technology; calculating the power flow of a generating system; performing static security analysis and auxiliary decision; calculating the reliability of the generating system; calculating the capacity confidence of newly-increased energy; and calculating the capacity confidence of all the intermittent energies. According to the technical scheme, a planning scheme including generation, load, and a grid structure is obtained via power grid planning data, statistical rules are analyzed with the combination of historical wind speed and historical output information of a wind farm, annual random production and simulation of a sequential Monte Carlo model are performed, network constraint conditions are considered, and the generating capacity confidence of new energy is evaluated.

Description

technical field [0001] The invention relates to an evaluation method in the field of power system planning, in particular to a method for evaluating the confidence degree of intermittent energy generation capacity considering network constraints. Background technique [0002] With the establishment of the UHV AC-DC hybrid power grid and the long-distance transmission of large-scale new energy and high voltage, the reliability requirements of the power generation and transmission system are getting higher and higher. Reliability assessment of power generation and transmission system refers to the quantitative assessment of the ability of power supply to meet load demand under the actual operating constraints of the system. Some existing technologies consider the correlation between wind power, but do not take into account the network constraints in the operation process, and need to be improved. Contents of the invention [0003] In order to solve the above-mentioned defic...

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 孙树明曾平良黄毅臣吕颖严剑峰于之虹李顺昕李亚楼赵炜炜鲁广明谢昶韩家辉史东宇陈丹邱健
Owner CHINA ELECTRIC POWER RES INST
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