Regional energy internet reliability evaluation method considering multivariate energy storage

A technology of energy internet and multiple energy storage, applied in the field of regional energy internet reliability assessment, which can solve the problems of enhancement, impact, and complex reliability assessment.

Pending Publication Date: 2020-09-15
STATE GRID HEBEI ELECTRIC POWER CO LTD +2
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  • Application Information

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Problems solved by technology

The enhancement of coupling characteristics between multi-energy systems makes reliability assessment more complicated: on the one hand, due to the complementary characteristics of multi-energy sources, the shortage of one energy source

Method used

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  • Regional energy internet reliability evaluation method considering multivariate energy storage
  • Regional energy internet reliability evaluation method considering multivariate energy storage
  • Regional energy internet reliability evaluation method considering multivariate energy storage

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Embodiment Construction

[0014] The method for evaluating the reliability of the regional energy internet considering multi-element energy storage of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0015] The regional energy internet reliability evaluation method considering multiple energy storage of the present invention includes the following steps:

[0016] 1) respectively build as figure 1 The mathematical model of each equipment in the shown regional energy Internet, the equipment in the energy Internet includes combined heat and power (CHP) unit, power-to-gas equipment and storage battery; Wherein,

[0017] (1.1) The combined heat and power unit is a unit that generates electric energy and heat energy by burning gas, and can realize the conversion of gas to electricity and heat. The mathematical model of the cogeneration unit refers to the relationship between the gas consumed by the unit and the electricity and therm...

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Abstract

A regional energy internet reliability evaluation method considering multivariate energy storage comprises the steps: establishing mathematical models of all devices in a regional energy internet respectively, wherein the devices in the energy internet comprise a combined heat and power generation unit, a power-to-gas conversion device and a power storage battery; establihsing mathematical modelsof a natural gas subsystem and a thermal subsystem in the energy internet; selecting regional energy internet reliability evaluation indexes; analyzing regional energy internet faults; and carrying out regional energy internet reliability evaluation considering multivariate energy storage. According to the invention, a research object of reliability evaluation can be expanded from a park-level comprehensive energy station to a regional-level energy internet, and the influence of multivariate energy storage resources on reliability evaluation is comprehensively considered, so that the planningand operation of the regional-level energy internet are reasonably guided; in addition, the fault chain reaction between different energy subsystems is considered, and the mutual influence after the faults of the energy subsystems can be effectively recognized and avoided.

Description

technical field [0001] The invention relates to a method for assessing reliability of regional energy internet. In particular, it relates to a reliability evaluation method for regional energy internet that is suitable for multi-energy storage resources such as traditional physical energy storage and pipeline network virtual energy storage, and the failure chain reaction mechanism between multi-energy subsystems. . Background technique [0002] Regional Integrated Energy System (RIES) is a system that integrates different energy sectors such as electricity, natural gas, and heat network, and has received more and more attention due to its wide applicability and construction flexibility. The enhancement of coupling characteristics between multi-energy systems makes reliability assessment more complicated: on the one hand, due to the complementary characteristics of multi-energy sources, the shortage of one energy source can be satisfied by another energy source through energ...

Claims

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Application Information

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IPC IPC(8): G06F30/20H02J3/00H02J3/32H02J3/38
CPCG06F30/20H02J3/00H02J3/32H02J3/381H02J3/388G06F2119/02H02J2203/20H02J2203/10H02J2300/28
Inventor 胡平齐晓光刘洪王涛赵辉赵越邵华安佳坤李吉峰韩璟琳王颖张倩茅习朋邢志坤吴斌
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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