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Probability energy flow analysis method for integrated energy system (IES)

A technology of integrated energy system and analysis method, applied in the field of probabilistic energy flow analysis of integrated energy system

Active Publication Date: 2015-06-24
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the probability power flow has been widely studied in EPS, but there are few relevant research reports at home and abroad on the probability power flow (energy flow) analysis of IES

Method used

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  • Probability energy flow analysis method for integrated energy system (IES)
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  • Probability energy flow analysis method for integrated energy system (IES)

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Embodiment Construction

[0074] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0075] 1EPS power flow equation

[0076] The state variables of the EPS power flow equation include the node voltage amplitude V and the phase angle θ. When V and θ are known, the power flow distribution in the EPS can be determined.

[0077] For the transmission branch ij in the EPS (the default i and j of the present invention are power nodes), the active power P of the branch ij ij , reactive power Q ij They are:

[0078] P ij =(g si +g ij )V i 2 -g ij V i V...

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Abstract

The invention discloses a probability energy flow analysis method for an integrated energy system (IES). According to the method, the concept of probability energy flow widely applied to an electric power system (EPS) is generalized to probability energy flow analysis of the IES, the influence on the state quantity probability distribution of the IES from the uncertainty of electricity, gas and heat loads of the IES and output of a wind power plant is quantitatively evaluated, and therefore a foundation is laid for subsequent network planning, steady-state analysis, optimized dispatching, real-time control, safety analysis and the like of the IES.

Description

technical field [0001] The invention relates to a probabilistic energy flow analysis method for an integrated energy system, which belongs to the technical field of integrated energy system monitoring and uncertainty analysis. Background technique [0002] Compared with other primary energy sources, natural gas is economical, environmentally friendly, and has abundant reserves. The proportion of combined cycle gas turbine power generation has gradually increased in recent years. Therefore, it is necessary to study the interaction between the electric power system (EPS) and the natural gas system (NGS). In addition, the energy hub (energy hub, EB) that integrates various forms of energy such as electricity and natural gas is expected to further deepen the coupling between EPS and NGS. The construction of integrated energy systems (IES) composed of EPS, NGS (or other energy systems) is the only way for human beings to transform to a more economical, environmentally friendly an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 陈胜卫志农孙国强孙永辉臧海祥陈妤楚云飞
Owner HOHAI UNIV
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