Compressor Discharge Temperature Control With Disturbance Observation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing compressor systems face challenges in controlling discharge temperature, which is affected by environmental conditions and can lead to condensed water generation and high discharge temperatures, impacting efficiency and performance.
Innovation Solution
A compressor system with a discharge temperature control module comprising a temperature sensor, controller, and disturbance observer that generates control signals to adjust the discharge temperature based on target and actual temperatures, while accounting for environmental disturbances, thereby preventing condensed water formation and optimizing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional discharge temperature control methods are used, then the system structure is simple, but the discharge temperature is easily affected by environmental conditions leading to condensed water generation and high discharge temperature
Solution Approach 1:
The patent implements a feedback control mechanism where the discharge temperature sensor continuously monitors the actual discharge temperature and feeds this information back to the controller. The controller compares the actual temperature with the target temperature and adjusts the inlet valve opening accordingly to eliminate the temperature deviation, thereby improving discharge temperature control stability while maintaining reasonable system complexity
Solution Approach 2:
The patent replaces traditional mechanical temperature control methods with an electronic control system that uses sensors, controllers, and actuators. This substitution enables more precise and responsive temperature control by using electronic signals and algorithms instead of purely mechanical adjustments, resolving the contradiction between control reliability and system complexity
2Measurement precision
If no disturbance observer is used, then the control system is simpler, but the control accuracy is reduced due to environmental disturbances
Solution Approach 1:
The disturbance observer acts as an intermediary component that estimates environmental disturbances affecting the discharge temperature and provides compensation signals to the controller. This intermediary mechanism isolates the main control loop from the influence of environmental variations, improving measurement and control accuracy without significantly increasing overall system complexity
Solution Approach 2:
The disturbance observer uses the available temperature measurements and system model to self-estimate the environmental disturbances and generate compensation signals autonomously. This self-service capability allows the system to maintain high measurement precision without requiring additional external sensors or complex external compensation systems
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
The present disclosure provides a compressor system, including: a compressed gas unit, including a compressor body; a temperature sensor, disposed at a discharge end of the compressor body, and configured to measure a discharge temperature of a compressed gas discharged from the discharge end of the compressor body; a discharge temperature control module, electrically connected to the compressed gas unit and the temperature sensor, respectively, and including: a controller, configured to generate a first control signal according to a target temperature of the compressed gas unit and the discharge temperature; a disturbance observer, configured to generate a final disturbance measurement signal of the compressed gas unit according to the discharge temperature.