Multi-Power Factor Controller for Uniform Load Control
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Solution Overview
Problem
Conventional power factor control systems require multiple condensers and separate controllers for each load, leading to high installation costs and complex designs, as they cannot perform uniform power factor control for multiple loads effectively.
Innovation Solution
A multi-power factor controller with measuring units, condensers, contactors, relay units, and a control unit that calculates power factors, adjusts the power factor of each load by selecting the optimal condenser, and controls the electromagnetic contactors to achieve uniform power factor control across multiple loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple condensers are used to individually control power factors of various loads, then power factor control for each load is achieved, but installation cost increases and device complexity increases
Solution Approach 1:
The patent merges multiple separate power factor controllers into a single multi-power factor controller that can control multiple loads simultaneously. Instead of having individual controllers for each load, one integrated controller manages all loads by selectively connecting appropriate condensers to each load through electromagnetic contactors, thereby reducing the total number of controllers while maintaining individual load control capability
Solution Approach 2:
The multi-power factor controller is designed with universal functionality to handle multiple different types of loads (transformers, motors, home appliances, lighting products) using a single device. The controller can dynamically select and connect appropriate condensers to different loads based on their specific power factor requirements, making the controller adaptable to various load types without requiring load-specific controllers
2Reliability
If separate power factor controllers are installed for each load, then individual power factor control is achieved, but the number of components increases and design becomes complicated
Solution Approach 1:
Multiple separate controllers are merged into one multi-power factor controller that maintains the ability to individually control each load. The single controller uses electromagnetic contactors to selectively connect condensers to specific loads, achieving individual load control without requiring separate physical controllers for each load
3Adaptability or versatility
If a great number of condensers are used for individual power factor control, then power factor adjustment capability is improved, but installation cost increases
Solution Approach 1:
The system dynamically selects and connects appropriate condensers to specific loads based on real-time power factor measurements and control algorithms. Instead of having fixed condensers for each load, the system can dynamically reconfigure which condenser connects to which load, optimizing the use of a smaller total number of condensers while maintaining full adjustment capability across all loads
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution allows for uniform power factor control of multiple loads using a reduced number of condensers, reducing costs and simplifying the design, while also detecting faulty condensers and determining the minimum number of additional condensers needed for installation.
Implementation Method 1
n contactors, each of the n contactors including k electromagnetic contactors, which are respectively connected to the k loads and are connected to any one of the condensers
Data Source
AI summary
A multi-power factor controller including k measuring units, to which k loads and a power supply path are connected, each of the k measuring units being connected with each of the k loads and measuring a power factor calculation parameter of a connected load; n condensers; n contactors, each of the n contactors including k electromagnetic contactors, connected to the k loads and one of the condensers; n relay units, each of the n relay units having k relays, respectively connected to the k electromagnetic contactors, for deciding whether to turn on or off the electromagnetic contactors; and a multi-power factor control unit for controlling a corresponding relay to turn on the electromagnetic contactor to which the first condenser and the target load are connected.