Fast Reliability Evaluation Algorithm Based on Ring-Spoke Network Decoupling

An evaluation algorithm and reliability technology, applied in the field of power system, can solve the problem of increasing calculation time, and achieve the effect of reducing the amount of calculation, simplifying the network, and improving the speed of reliability evaluation.

Active Publication Date: 2017-11-21
TSINGHUA UNIV +1
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Problems solved by technology

Under a certain accuracy requirement, the sampling frequency of the simulation method has nothing to do with the scale and complexity of the system, so it is especially suitable for the rapid evaluation and calculation of large-scale power systems. increase, especially for systems with higher reliability

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  • Fast Reliability Evaluation Algorithm Based on Ring-Spoke Network Decoupling
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  • Fast Reliability Evaluation Algorithm Based on Ring-Spoke Network Decoupling

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified...

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Abstract

The invention discloses a quick reliability estimation algorithm based on ring-radiation network decoupling. The quick reliability estimation algorithm comprises the following steps: constructing an initial power grid topological structure, and eliminating small branch paths so as to obtain a simplified power grid topological structure; decomposing a power grid into a ring network and a radiation network according to the power grid topological structure; performing reliability state sampling on the whole grid by a Monte Carlo simulation method; performing result estimation on a system state obtained by sampling after the reliability state sampling so as to estimate reliability results of a power system; counting the reliability results of the power system to obtain a reliability index of the system. According to the estimation algorithm disclosed by the embodiment of the invention, reliability estimation is carried out on different power grid structures, so that the reliability estimation speed can be effectively increased, and necessary auxiliary decision suggestion can be provided for a power grid planning and operating worker; moreover, the quick reliability estimation algorithm can be applied to estimation on the reliability and the economical property of the power system.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a fast reliability evaluation algorithm based on ring-spoke network decoupling. Background technique [0002] Power system reliability is the application of reliability theory in power systems, and it is a measure of the power system's ability to continuously supply power and energy to power users in accordance with acceptable quality standards and required quantities. According to the content of power system reliability assessment, the theoretical research on power system reliability is divided into three levels: the first level is the reliability assessment of the power generation system, the second level is the reliability assessment of the combined power generation and transmission system, and the third level is the power generation system. , Power system reliability assessment including power transmission system and power distribution system. On the basis of the first...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 程林刘满君王旭吴强高松黄河高滨田浩
Owner TSINGHUA UNIV
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