Dynamic High-Energy Switch Circuit for Power Imbalance Correction

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Solution Overview

Problem

Conventional switching circuits are unable to effectively switch high-energy loads, leading to damage and inefficiencies due to power imbalance and harmonic distortion issues, with no practical method to match voltage across capacitors or rapidly discharge and charge them safely.

Innovation Solution

A novel switching circuit comprising a resistor and a high-energy triac switch, combined with an opto coupler, thermistor, and relay, which senses and controls current flow to manage capacitance and balance, using a processor for feedback and load correction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If conventional electronic switches are used to switch high-energy loads, then the switching operation can be performed, but the switch, capacitor, and connected devices are damaged due to inability to handle high energy

Engineering Contradiction:
Improveswitching capacityVSAvoidcomponent durability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent introduces a specialized high-energy switch circuit that acts as an intermediary between the capacitor and the load. This switch circuit is specifically designed to handle the high energy transfer without damage, mediating the energy transfer process safely. The switch includes protective components and control mechanisms that enable it to withstand and manage the high power levels that would damage conventional switches.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If capacitor voltage is not matched to line voltage at switching moment, then switching can occur, but power imbalance and harmonic distortion occur causing inefficiency

Engineering Contradiction:
Improveswitching speedVSAvoidpower imbalance loss
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent implements preliminary voltage matching action before the actual switching occurs. The control circuit monitors and adjusts the capacitor voltage to match the line voltage before closing the switch contacts. This preliminary synchronization prevents power imbalance and harmonic distortion by ensuring voltages are equal at the moment of switching, eliminating the harmful effects of voltage mismatch.

Inventive Principle:
Principle #10Preliminary action

3Speed

If capacitor cannot be discharged rapidly, then switching operations are simplified, but the capacitor cannot be quickly recharged or switched on and off rapidly

Engineering Contradiction:
Improveswitching speedVSAvoiddischarge control complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent segments the discharge function from the main switch circuit by introducing a separate discharge circuit with its own control mechanism. This discharge circuit includes a discharge switch and associated components that can rapidly discharge the capacitor independently of the main switching operation. This segmentation enables rapid discharge capability while keeping the main switching circuit relatively simple.

Inventive Principle:
Principle #1Segmentation

4Device complexity

If no voltage matching system is implemented, then the switching circuit is simpler, but there is no practical way to match voltage across capacitor to line voltage

Engineering Contradiction:
Improvecircuit complexityVSAvoidvoltage matching capability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements a feedback control system that continuously monitors both the capacitor voltage and line voltage, comparing them and adjusting the capacitor charging/discharging operations to achieve voltage matching before switching. The control circuit uses this feedback information to determine the optimal moment for switching and to regulate the capacitor voltage, ensuring reliable voltage matching without excessive complexity.

Inventive Principle:
Principle #23Feedback

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

Enables safe energy transfer and correction of power imbalances and harmonic distortions, reducing energy consumption and extending the lifespan of switching components.

Implementation Method 1

a high-energy triac switch, which in combination together, achieve the desired means of releasing capacitance when required

Methodology Applied
Scientific EffectTriac switching:

Implementation Method 2

The invention comprises a resister along with a high-energy triac switch

Methodology Applied
Scientific EffectElectrical resistance: Electrical Resistance

Implementation Method 3

A control circuit connected to leads 18 and 19 is isolated from other circuitry by the operation of opto coupler 1

Methodology Applied
Scientific EffectOptical coupling:

Implementation Method 4

Thermistor 28 is a device that senses temperature changes of triac 5

Methodology Applied
Scientific EffectThermal resistance change: Thermistor

Implementation Method 5

relay 17 operates and its contact 16 closes when the AC voltages on line 4 and capacitor 12 are near equal

Methodology Applied
Scientific EffectElectromagnetic actuation: Relay

Data Source

PatentUS8928173B2Dynamic high energy switch
Publication Date: 2015.01.06 POWERMETRICS INT
  • US8928173B2 patent drawing
  • US8928173B2 patent drawing

AI summary

A dynamic high-energy switch used for correcting load imbalance through connecting and disconnecting capacitance in a power feed circuit.