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Energy system reliability evaluation method considering thermal inertia and energy network constraints

A network constraint, energy system technology, applied in the field of energy system reliability assessment, can solve problems such as incomplete assessment, not considering network constraints, etc., to achieve the effect of comprehensive consideration

Pending Publication Date: 2019-12-06
SHANGHAI JIAO TONG UNIV +2
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Problems solved by technology

[0005] The above studies show that the reliability assessment of IES has received extensive attention from scholars at home and abroad, but there are still the following problems: (1) Most current studies analyze system reliability from a steady-state perspective, and the assessment on multiple time scales is still not perfect; (2) Existing user-level IES reliability assessment methods do not consider network constraints

Method used

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  • Energy system reliability evaluation method considering thermal inertia and energy network constraints
  • Energy system reliability evaluation method considering thermal inertia and energy network constraints
  • Energy system reliability evaluation method considering thermal inertia and energy network constraints

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Embodiment 1

[0063] Such as figure 1 As shown, this embodiment is a user-level comprehensive energy system reliability assessment method considering thermal inertia and energy network constraints, including the following steps:

[0064] S1: Based on the energy hub model, the multi-energy mutual aid characteristics of the user-level integrated energy system are analyzed, and the support capacity of each subsystem in different time sections is calculated, and the energy flow mutual aid reliability gain index is derived based on this;

[0065] The specific process of step S1 is as follows:

[0066] Such as figure 2 As shown, the energy hub model can be divided into three parts of "distribution-transfer-use", α, β, ω represent different energy types, ij represents the energy flow conversion path, i,j∈{α,β,ω}. The coupling matrix C can be used to represent the energy flow conversion process to describe the relationship between the three, and the expression of the relationship between the thr...

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Abstract

The invention relates to an energy system reliability evaluation method considering thermal inertia and energy network constraints. The energy system reliability evaluation method comprises the following steps: determining a reliability index of a user-level comprehensive energy system; acquiring power, thermal and natural gas supply networks and coupling association data thereof, and establishinga user-level comprehensive energy system model; and evaluating the reliability of the user-level comprehensive energy system model based on the reliability index, wherein the user-level comprehensiveenergy system model considers thermal inertia, and the reliability of the user-level comprehensive energy system is calculated based on constraints of different energy networks, and the constraints of the different energy networks comprise power network power flow equation constraints, natural gas network energy flow equation constraints and heat network energy flow equation constraints. Comparedwith the prior art, the user-level comprehensive energy system model disclosed by the invention considers the thermal inertia, and the evaluation of the reliability of the model considers the constraints of different energy networks, and the consideration is more comprehensive, and the accuracy of reliability evaluation is improved.

Description

technical field [0001] The invention relates to an energy system reliability assessment method, in particular to an energy system reliability assessment method considering thermal inertia and energy network constraints. Background technique [0002] Under the dual pressure of limited traditional fossil energy reserves and increasingly serious environmental pollution problems, the institutional and institutional contradictions between extensive energy utilization patterns and environmental protection have become increasingly prominent. In this context, thanks to the continuous development of energy conversion technology, the integrated energy system (IES) came into being. IES refers to the integrated system of energy production, supply and consumption formed after the organic coordination and optimization of the production, distribution, conversion, consumption, storage and other links of various energy sources in the process of planning, design, construction and operation. ...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06F17/50G06F17/16G06F17/11
CPCG06Q10/06393G06Q50/06G06F17/11G06F17/16Y02P90/82
Inventor 张沈习吕佳炜杜炜程浩忠尚学军李国栋杨志宏柳璐
Owner SHANGHAI JIAO TONG UNIV
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