Urban power grid reliability evaluation method taking power generation, power transmission and power distribution systems into integrated consideration
A technology of power distribution system and urban power grid, applied in the field of electric power, can solve the problems of not considering the mutual influence of subsystems, unable to truly describe the reliability of the power grid, unable to truly reflect the actual status of the power system, etc., to achieve good computability and The effect of broad applicability
Inactive Publication Date: 2016-07-27
STATE GRID JIBEI ELECTRIC POWER COMPANY +1
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Therefore, when evaluating the reliability of any one of the subsystems, it is assumed that the other subsystems are completely reliable, and the interaction between subsystems is not considered
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[0048] 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 denote 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.
[0049]Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understood...
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The embodiment of the invention provides an urban power grid reliability evaluation method taking power generation, power transmission and power distribution systems into integrated consideration. The method mainly comprises the following steps: first of all, an urban power grid is divided into a power transmission network layer, a high-voltage distribution network layer and an intermediate-voltage distribution network layer; according to data of a power transmission network, calculating a reliability index of the power transmission network layer by use of a set algorithm, and converting the reliability index at a bus of the power transmission network layer into a power supply of the high-voltage distribution network layer through an equivalent power supply mode; converting a reliability index of a terminal bus at the high-voltage distribution network layer into a power supply of the intermediate -voltage distribution network layer through an equivalent power supply mode; and according to data of the intermediate-voltage distribution network layer, calculating a reliability index of the intermediate-voltage distribution network layer by use of the set algorithm. The urban power grid integrated reliability evaluation method provided by the embodiment of the invention effectively avoids the defect of only individual reliability evaluation of a power transmission network or a power distribution network, takes influences exerted by the power transmission network on the power distribution network into integrated consideration, and can truly reflect the power reliability of a power system.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a method for evaluating the reliability of an urban power grid which comprehensively considers power generation, power transmission and power distribution systems. Background technique [0002] Reliability represents the ability of the system to ensure the function of meeting user needs. Power system reliability is a measure of the power system's ability to supply power and energy to power users uninterruptedly in accordance with acceptable quality standards and required quantities. Power system reliability includes two aspects of adequacy and safety. [0003] Sufficiency refers to the ability of the power system to maintain the continuous supply of the total power demand and the total power energy of users, taking into account the planned outage of system components and the reasonable expectation of unplanned outage. Sufficiency is also called static reliability, that i...
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Login to view more IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 雷为民苗友忠罗玮王信孙瑜寇凌岳张沛姜瑞敏邓晓洋张大海王小君王澍
Owner STATE GRID JIBEI ELECTRIC POWER COMPANY
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