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Modeling method of internal combustion engine-lithium bromide combined cooling heating and power system

A technology of combined cooling, heating and power supply and modeling method, applied in computational models, biological models, electrical digital data processing, etc. Better performance, easier modeling, improved effects of inertia weights and acceleration factors

Active Publication Date: 2019-12-06
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]Currently, most of the combined cooling, heating and power systems do not have data support, so mathematical models and mechanism modeling are often used to establish models. As a highly nonlinear system, the current thermodynamic mechanism modeling cannot accurately describe its operating characteristics, and its practical value is also lacking.

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  • Modeling method of internal combustion engine-lithium bromide combined cooling heating and power system
  • Modeling method of internal combustion engine-lithium bromide combined cooling heating and power system
  • Modeling method of internal combustion engine-lithium bromide combined cooling heating and power system

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Embodiment Construction

[0052] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0053] This embodiment is aimed at figure 1 In the distributed energy system shown, the combined cooling, heating and power supply system of the "gas internal combustion engine-flue gas hot water lithium bromide single-effect and double-effect composite cold and hot water unit" is modeled based on the combination of mechanism and data drive. Through the analysis of the system structure, process flow, mechanism characteristics, etc., it is established that the system can be transformed into a multi-variable coupling model with three inputs and three outputs, and the particle swarm opti...

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Abstract

The invention relates to a modeling method of an internal combustion engine-lithium bromide combined cooling heating and power system. The modeling method comprises: determining model input and outputvariables, determining a system model structure, determining a model parameter identification variable,; and substituting the system operation data into the improved particle swarm intelligence algorithm by adopting a method of combining a mechanism and data-driven modeling to identify unknown parameters of the system model so as to obtain a final model. Compared with the prior art, the technicalproblems that the internal combustion engine-lithium bromide combined cooling heating and power system is difficult to model, optimize and control are effectively solved, and a premise is provided for operation optimization and control strategy research of the combined cooling heating and power system.

Description

technical field [0001] The invention relates to the field of combined cooling, heating and power systems, in particular to a modeling method for an internal combustion engine-lithium bromide combined cooling, heating and power system. Background technique [0002] In recent years, in order to better save energy and protect the environment, my country's distributed energy system has developed rapidly, and its most important realization form is the combined cooling, heating and power supply system. There are "steam turbine + steam lithium bromide absorption chiller", "gas turbine + flue gas lithium bromide absorption chiller" and "gas internal combustion engine + flue gas hot water lithium bromide absorption chiller", etc. [0003] At present, most of the combined cooling, heating and power systems are not supported by data, so mathematical models and mechanism modeling are mostly used to establish models. However, the combined cooling, heating and power system is a highly nonl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/00
CPCG06N3/006
Inventor 于会群沈昱彭道刚邱亚鸣
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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