Method and device for adaptively regulating static pressure of ducted air conditioner and ducted air conditioner
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Solution Overview
Problem
Current methods for ducted air conditioners with large static pressure ranges require manual division of static pressure into sections and setting of rotating speeds, making it difficult to achieve specific static pressures and optimize section operation.
Innovation Solution
A method and device that divide static pressure into preset sections based on a rule, detecting actual working currents to determine the appropriate section and adjust rotating speeds, using a ratio of current differences to automatically select the optimal section for adaptive regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual division of static pressure into sections and setting of rotating speeds is used, then the ducted air conditioner can operate in predefined sections, but it is difficult to achieve specific static pressures and determine the optimum section
Solution Approach 1:
The system automatically detects the actual static pressure and selects the appropriate section and fan rotating speed without requiring manual intervention. The control unit performs adaptive regulation by comparing detected pressure values with preset section ranges and automatically adjusting operating parameters to achieve optimal performance.
Solution Approach 2:
The system implements a feedback mechanism where the actual static pressure is continuously detected and compared with the preset section ranges. Based on this feedback, the control unit automatically adjusts the fan rotating speed to maintain the static pressure within the desired section, enabling adaptive regulation.
2Device complexity
If the static pressure is divided into multiple sections with preset rotating speeds, then the control structure is simplified, but the precision of achieving specific static pressure values is reduced
Solution Approach 1:
The system combines static preset sections with dynamic adjustment capabilities. Within each section, the fan rotating speed can be dynamically adjusted based on the actual static pressure detection, allowing the system to achieve specific pressure values while maintaining a simplified sectional control structure.
3Extent of automation
If dial manner or drive-by-wire manner is used to control the ducted air conditioner, then each rotating speed corresponding to each gear can be acquired, but manual intervention is required and automation is reduced
Solution Approach 1:
The control unit automatically performs the entire regulation process including section selection and rotating speed adjustment based on detected static pressure, eliminating the need for manual dial or drive-by-wire control while maintaining full automation.
4Adaptability or versatility
If constant air blast capacity is used for each gear, then the control implementation is simplified, but the ability to adapt to varying static pressure requirements is reduced
Solution Approach 1:
The system transitions from static constant air blast capacity per gear to dynamic adjustment within each section. The fan rotating speed is continuously adjusted based on actual static pressure detection, enabling adaptation to varying pressure requirements while maintaining simplified sectional control implementation.
Data Source
AI summary
The present disclosure provides a method and a device for adaptively regulating a static pressure of a ducted air conditioner, and a ducted air conditioner. The method includes: dividing the static pressure in an air duct into a preset number of sections; selecting the sections i and i+1, and detecting respectively the gears corresponding to the sections i and i+1, the rotating speeds Ri and Ri+1, and an actual working currents Ii and Ii+1; and judging whether Ii and Ii+1 are within the normal current ranges respectively; and selecting the final section according to the judging result. With the method, the air duct conditioner may automatically select and determine a section according to actual installation environments, and may automatically determine an optimum section in which the ducted air conditioner works.