A thermal load control method for micro gas turbine cogeneration system based on robust fuzzy predictive control

A micro gas turbine, fuzzy prediction technology, applied in general control system, control/regulation system, adaptive control, etc., can solve problems such as failure to meet performance requirements, achieve fast tracking speed, enhanced degree of freedom, and small overshoot Effect
CN110488610BActive Publication Date: 2022-05-10SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2022-05-10

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Abstract

The invention discloses a heat load control method of a micro gas turbine combined heat and power system based on robust fuzzy predictive control, comprising the following steps: collecting input fuel quantity and hot water temperature data of the micro gas turbine combined heat and power system, and establishing a heat load control process The T‑S fuzzy affine model of the heat load control process is established; the global amplification state T‑S fuzzy model is established; the offline fuzzy observer is established based on the global amplification state T‑S fuzzy model; the global amplification state T‑S fuzzy model is established Model and Offline Fuzzy Observer to Build a Robust Fuzzy Predictive Controller. The method of the present invention utilizes the T-S fuzzy model to weaken the influence of the nonlinearity of the system on the controller, adopts the observer to overcome the problem of unmeasurable state, uses the state amplification to overcome the steady-state error, and strengthens the degree of freedom of the controller. A high-quality stable model predictive control method for practical complex industrial processes.
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Description

technical field

[0001] The invention relates to an automatic control method, in particular to a method for controlling heat load of a micro gas turbine combined heat and power system based on robust fuzzy predictive control. Background technique

[0002] The massive consumption of fossil fuels, global warming and environmental degradation have attracted many researchers to find more efficient ways to save energy and reduce greenhouse gas emissions as well as pollutants. Micro gas turbine combined heat and power system is a thriving new technology for efficient and clean energy production. Its overall energy efficiency can exceed 90% due to the cascading utilization of energy, while the thermal efficiency of centralized power plants is between 18% and 47%. Therefore, in recent years, the micro gas turbine combined heat and power system has received extensive attention and has become one of the main directions of energy development. However, due to the dynamics of micro gas ...

Claims

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