Compressor Discharge Temperature Control With Disturbance Observation
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Solution Overview
Problem
Existing compressor systems face challenges in efficiently controlling discharge temperature, leading to inefficiencies and the risk of condensed water formation due to inaccurate temperature regulation and environmental interference.
Innovation Solution
A compressor system with a discharge temperature control module incorporating a controller and disturbance observer to generate control signals based on target and measured discharge temperatures, adjusting compressor operation to maintain optimal temperature and prevent condensed water formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional temperature control methods are used in compressor systems, then the system structure remains simple, but the discharge temperature control accuracy deteriorates and condensed water formation risk increases
Solution Approach 1:
The patent implements a feedback control mechanism where the discharge temperature is continuously measured by a temperature sensor and fed back to a disturbance observer. The disturbance observer processes this feedback signal along with the control signal to generate a compensated control output, forming a closed-loop control system that improves discharge temperature control accuracy while managing system complexity through structured feedback processing
Solution Approach 2:
The disturbance observer acts as an intermediary component between the traditional controller and the compressor system. It receives the control signal and temperature feedback, processes disturbance information, and generates a compensated control signal, thereby mediating the control process to improve accuracy without requiring complete redesign of the entire control system
2Productivity
If discharge temperature is reduced to improve efficiency, then energy efficiency increases, but the risk of condensed water formation increases
Solution Approach 1:
The feedback control system continuously monitors discharge temperature and adjusts the control signal to maintain temperature within the optimal range. This prevents temperature from dropping too low (which would cause condensation) while still allowing efficient operation, thus resolving the contradiction between efficiency and condensation risk through dynamic feedback adjustment
Solution Approach 2:
The disturbance observer provides prior cushioning by predicting and compensating for disturbances that could cause temperature to drop into the condensation zone. By proactively adjusting the control signal based on disturbance estimation, the system prevents condensed water formation before it occurs, allowing efficient operation without crossing into harmful temperature ranges
3Stability of the object's composition
If control parameters are adjusted to account for environmental interference, then control stability improves, but the complexity of control algorithm increases
Solution Approach 1:
The control algorithm is segmented into distinct functional modules: a traditional controller that generates base control signals, a disturbance observer that processes temperature feedback and estimates disturbances, and a compensation mechanism that adjusts the control signal. This segmentation improves control stability by addressing different aspects separately while keeping individual module complexities manageable
Solution Approach 2:
The disturbance observer serves as an intermediary that handles the complex task of disturbance estimation and compensation. By isolating this complex processing in a dedicated module rather than embedding it throughout the entire control system, the patent achieves improved control stability while managing algorithmic complexity through modular architecture
Data Source
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.