Fan Array with Modular Control and Local Motor Controllers
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Solution Overview
Problem
Conventional fan arrays lack individual control of fan units based on their performance, leading to inefficient operation and frequent adjustments, and are difficult to assemble and maintain due to complex wiring and cumbersome design.
Innovation Solution
A fan array system with a modular design featuring local motor controllers for each fan unit, connected via a signal path with a master controller that communicates target operating parameters, allowing for individual control and simplified assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fan units are operated based on the performance of the fan array as a whole, then the fan array can achieve desired performance level, but frequent adjustments to each fan unit are required which creates wear and reduces efficiency
Solution Approach 1:
The control system is segmented into a master controller and individual slave controllers for each fan unit. The master controller receives airflow demand signals and determines optimal operating parameters, while each slave controller independently controls its associated fan unit based on received commands. This segmentation allows individual fan units to be controlled precisely without requiring frequent manual adjustments to achieve desired performance levels.
2Ease of operation
If conventional fan arrays are designed with remote power and communication systems, then each fan unit can be powered and controlled, but the wires clutter the fan array and make assembly and maintenance difficult
Solution Approach 1:
The power system and communication system are merged into an integrated control architecture. The master controller communicates with slave controllers through a unified control network that combines power distribution and data communication functions. This merging eliminates the need for separate remote power supplies and communication wires for each fan unit, significantly reducing wiring complexity while maintaining full control capability.
Solution Approach 2:
Slave controllers act as intermediaries between the master controller and individual fan units. Each slave controller receives control commands and power from the master controller through the integrated system, then locally controls its associated fan unit. This intermediary approach allows centralized control while minimizing physical wiring requirements at each fan unit location.
3Stability of the object's composition
If fan units are positioned in individual chambers with conventional mounting, then the fan array structure is stable, but inserting and removing fan units requires substantial time for assembly and maintenance
Solution Approach 1:
Fan units are pre-assembled with integrated motors, controllers, and mounting features as complete modules before installation in the fan array. The slave controllers are pre-configured and wired to the fan units during manufacturing, so that when the fan units are installed in their respective chambers, they are ready for immediate operation. This preliminary preparation significantly reduces assembly time while maintaining structural stability through proper chamber design.
Data Source
AI summary
A fan array is provided having a frame including a plurality of frame members. The frame members are joined to define a plurality of chambers. Each of a plurality of fan units is configured to be positioned in one of the plurality of chambers. Each fan unit has a motor. A plurality of local motor controllers are joined to corresponding motors. The local motor controllers are configured to control an operation of the corresponding fan unit. A master controller is configured to communicate with the local motor controllers. The master controller is configured to provide the local motor controllers with target operating parameters for the corresponding fan units.