Equivalent-source model construction method for multi-energy power generation system

A power generation system and construction method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as complex model structure, long simulation time, unsuitable for simulation calculations, etc.

Inactive Publication Date: 2018-12-21
CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This type of model has a complex structure and long simulation time, and is not suitable for si

Method used

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  • Equivalent-source model construction method for multi-energy power generation system
  • Equivalent-source model construction method for multi-energy power generation system
  • Equivalent-source model construction method for multi-energy power generation system

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] like figure 1 Shown is the equivalent value of a kind of multi-energy power generation system described in the present invention Schematic diagram of the source model construction method, including the following steps:

[0048] Step A: According to The concept and meaning of , defined from the perspective of energy flow flow, flow, Potential difference and The concept of resistance;

[0049] Among them, the It refers to: based on the given environment, when the system reversibly changes from any state to a state in equilibrium with the given environment, the part of energy that can be converted into useful work to the maximum extent is represented by Ex. It is a kind of energy, which has the dimension and property of energy. the size of Value, unit is J; It represents the unified part of "quantity" and "quality" in energy, and pro...

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Abstract

The invention belongs to the field of power system modeling and simulation, A method for construct an equivalent exergy source model of a multi-energy power generation system According to the conceptand significance of exergy, Define flow from the perspective of energy flow exergy Flow Potential and exergy resistance and so on. The exergy resistance is used to characterize the loss in the energyconversion process, reflecting the irreversibility of exergy transfer, and describes the flow potential difference of each power generation system exergy and exergy streams. According to Thevenin's theorem, keep the wind, light, Water, gas and other energy power generation systems are equivalent to a multi-energy power generation system equivalent exergy source model, the characteristic constraints and topological constraints of the equivalent exergy source model of multi-energy power generation system are analyzed. The multi-energy power generation system equivalent exergy source model constructed by the invention realizes the homogenization analysis of each power generation system and the power system, therefore, it lays a foundation for homogeneous modeling of various heterogeneous energy power generation systems.

Description

technical field [0001] The invention belongs to the field of power system modeling and simulation, and relates to a multi-energy generation system equivalent A method for constructing a source model, in particular to a method for constructing a unified model of a power generation system including wind, light, water, gas and other heterogeneous energy sources such as energy storage. Background technique [0002] Utilizing the output characteristics of wind power, photovoltaic power, hydropower, natural gas power generation and other energy power generation systems, a power generation system with multiple heterogeneous energy coupled to the grid can be formed, which can effectively stabilize random and intermittent wind power and photovoltaic power generation At the same time, it also has certain significance for improving the energy utilization rate of the entire power system and the stability of the power grid. The establishment of a reliable simulation model of wind, ligh...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 叶林么艳香路朋屈晓旭李宏张亚丽
Owner CHINA AGRI UNIV
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