Reliability assessment method for distribution network including photovoltaic power supply

A photovoltaic power supply, reliable technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., to achieve the effect of complete indicators

Active Publication Date: 2011-10-05
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above two methods rarely evaluate the reliability of the network after the photovolta

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  • Reliability assessment method for distribution network including photovoltaic power supply
  • Reliability assessment method for distribution network including photovoltaic power supply
  • Reliability assessment method for distribution network including photovoltaic power supply

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Embodiment Construction

[0021] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention provides a reliability assessment method for a distribution network including a photovoltaic power supply, comprising the following steps: establishing a multimode reliability model of the photovoltaic power supply and determining the power and the probability of each mode of the multimode reliability model; adopting an FMEA (failure mode and effect analysis) method to analyze all failures of the distribution network so as to obtain reliability indexes of all loads of the distribution network and the first class of reliability indexes of the photovoltaic power supply influenced by the distribution network; and determining the second class of reliability indexes of the photovoltaic power supply in accordance with the multimode reliability model and determining the reliabilityindexes of the distribution network in accordance with the reliability indexes of the all loads. The reliability assessment method is used to assess the distributed photovoltaic power supply reasonably and provides reliable judgment basis for the capacity that the distributed photovoltaic power supply accesses to the distribution network and position selection.

Description

technical field [0001] The invention relates to the technical field of distribution network reliability evaluation, in particular to a method for evaluating the reliability of a distribution network containing photovoltaic power sources. Background technique [0002] At present, the research on the reliability evaluation method of the distribution network containing distributed photovoltaic power at home and abroad is mainly aimed at establishing a reasonable photovoltaic power reliability model, and then incorporating the model into the evaluation system to analyze the impact of photovoltaic power on reliability. Literature Jeongje Park, Wu Liang, Jaeseok Choi, et al.A probabilistic reliability evaluation of a powersystem including Solar / Photovoltaic cell generator / / Power & Energy Society General Meeting, July 26-30, 2009, Calgary, AB, Canada: 1- In 6, a reliability analysis method for power systems containing photovoltaics is proposed. Considering the multi-state model of ...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 鲁宗相段晓波王震李晓明戎士洋
Owner TSINGHUA UNIV
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