Output inductance value controlling method, apparatus, and computer device of multi-tap reactor
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Solution Overview
Problem
Existing air conditioners with multiple internal units face high production costs and low applicability due to the need for multiple fixed inductance reactors, which fail to effectively reduce harmonic components and improve power factor.
Innovation Solution
A multi-tap reactor system that dynamically adjusts its output inductance value based on real-time motor speeds and phase currents of internal units, using a relay-connected multi-tap reactor to input the optimal inductance value into the power supply, thereby reducing harmonic components and eliminating the need for multiple reactors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single reactor with fixed inductance value is provided for each internal unit, then the production cost is reduced, but the applicability and effectiveness in reducing harmonic components deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the inductance value adjustable rather than fixed. The reactor's inductance can be dynamically changed through tap switching based on the total power of operating internal units, allowing the system to adapt to different operating conditions while using a single physical reactor component.
Solution Approach 2:
The patent implements parameter changes by varying the inductance value of the reactor according to the total power demand of internal units. Different tap positions provide different inductance values (L1, L2, L3, L4) that correspond to different power ranges, optimizing harmonic reduction effectiveness for each operating scenario.
2Adaptability or versatility
If multiple reactors are provided for multiple internal units, then the applicability is improved, but the production cost increases extremely
Solution Approach 1:
The patent merges the function of multiple reactors into a single multi-tap reactor. Instead of installing separate reactors for each internal unit, one reactor with multiple adjustable tap positions is used to serve all internal units collectively, achieving the same adaptability at lower cost.
Solution Approach 2:
The single reactor is designed with multi-functionality to serve multiple internal units with different power requirements. By providing multiple tap positions with different inductance values, the reactor can adapt to various total power configurations of internal units, replacing the need for multiple dedicated reactors.
3Device complexity
If a fixed inductance value reactor is used, then the device complexity is reduced, but the ability to reduce harmonic components and improve power factor deteriorates
Solution Approach 1:
The reactor transitions from a static fixed inductance design to a dynamic adjustable design. The inductance value can be changed in real-time based on operating conditions through relay-controlled tap switching, improving harmonic reduction effectiveness without significantly increasing overall system complexity.
Solution Approach 2:
The system implements feedback control by monitoring the power consumption of internal units and automatically adjusting the reactor's inductance value accordingly. The controller receives power information from internal units and selects appropriate tap positions to optimize harmonic reduction and power factor improvement for the current operating condition.
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 effectively reduces harmonic components and improves power factor while lowering production costs by dynamically adjusting the inductance value of the multi-tap reactor, enhancing the applicability and efficiency of the air conditioning system.
Implementation Method 1
a multi-tap reactor having a plurality of output ports, wherein a single output port of the multi-tap reactor is correspondingly connected to a single relay, and each relay is connected to a general power supply
Data Source
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AI summary
An output inductance value controlling method, apparatus, and computer device for a multi-tap reactor are provided. A single output port of the multi-tap reactor is correspondingly connected to a single relay, and each relay is connected to a general power supply of all air conditioner internal units. When in use, an air conditioning system acquires a motor speed and a phase current of each air conditioner internal unit separately, and then calculates a sum of motor powers of all the air conditioner internal units according to the motor speeds and the phase currents. The system matches a basic inductance value required by the air conditioner internal units according to the sum of motor powers, sets a current output inductance value of the multi-tap reactor according to the basic inductance value, and inputs the output inductance value into the corresponding air conditioner internal units, thereby reducing harmonic components generated during operation of the corresponding air conditioner internal units. The air conditioning system dynamically adjusts the inductance value output by the multi-tap reactor according to real-time powers of all the air conditioner internal units, which can effectively reduce harmonic components generated by the air conditioner during operation, and has high applicability.