Solid Testing Platform for Intelligent Phase-Change Switches
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Solution Overview
Problem
Current function testing platforms for intelligent phase-change switches face issues such as inability to arbitrarily adjust active and reactive power for each phase, unbalance adjustment, and seamless transient switching, leading to power losses and inefficiencies.
Innovation Solution
A solid testing platform comprising a primary controller, first and second modules, a capacitor, an intelligent phase-change switch, and a transformer, where the primary controller controls the modules, and the second module adjusts current flow through the switch, with a capacitor for energy support and filtering, allowing for balanced power feedback to the grid without losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If active load is accessed in the existing testing platform, then the function testing can be performed, but active power losses occur and energy efficiency deteriorates
Solution Approach 1:
The patent creates a virtual load model that replicates the electrical characteristics of actual loads without requiring physical load connection. The virtual load simulator generates simulated load currents based on measured voltage and desired power factor, eliminating the need for real power consumption during testing. This copying approach maintains testing reliability while eliminating energy losses associated with physical active loads.
Solution Approach 2:
The patent replaces the mechanical/electrical power consumption system with an electronic simulation system. Instead of using physical loads that consume active power, the system uses a virtual load simulator with power factor correction circuits that electronically generate the required current waveforms. This substitution eliminates the mechanical power loss while maintaining the electrical testing functionality.
2Reliability
If physical loads are connected for testing, then function testing is enabled, but active and reactive power of each phase cannot be arbitrarily adjusted and unbalance cannot be adjusted
Solution Approach 1:
The patent implements dynamic control of the virtual load simulator where the magnitude and phase angle of the simulated load current can be independently adjusted for each phase in real-time. The system allows arbitrary setting of power factor values and unbalance degrees, enabling flexible simulation of various operating conditions without physical reconfiguration. This dynamic adjustment capability provides full adaptability for testing different power scenarios.
Solution Approach 2:
The patent enables independent control of multiple parameters including active power, reactive power, power factor, and unbalance degree for each phase of the virtual load. By changing these parameters electronically through the control system, the testing platform can simulate any desired load condition without physical modifications. This parameter flexibility allows comprehensive testing of the intelligent phase-change switch under diverse operating conditions.
3Reliability
If physical loads are used, then testing can be performed, but seamless and transient switching for multiple times cannot be achieved
Solution Approach 1:
The patent replaces physical load switching with electronic waveform generation switching. The virtual load simulator can instantaneously change the simulated load characteristics by modifying the control signals to the power factor correction circuits, achieving seamless transitions between different load conditions. This electronic switching eliminates the mechanical delays and transients associated with physical load connection and disconnection, enabling rapid repeated testing cycles.
4Reliability
If unbalanced operation conditions are simulated, then comprehensive testing is achieved, but power losses occur in existing platforms
Solution Approach 1:
The patent creates virtual copies of unbalanced load conditions without requiring actual unbalanced power consumption. The virtual load simulator generates the characteristic current waveforms that would result from unbalanced loads, allowing comprehensive testing of the phase-change switch under unbalanced conditions while eliminating the energy losses that would occur with physical unbalanced loads. The simulation captures all electrical characteristics without the associated power waste.
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 simulation of unbalanced operation conditions with zero power losses, reducing energy inefficiencies by maintaining equal total input and output power, thus effectively testing intelligent phase-change switches.
Implementation Method 1
the capacitor C is configured to perform energy support, filtering, and smoothing
Implementation Method 2
after performing inverter control by the first module to power absorbed by the second module, the power is further filtered out high-frequency harmonic wave through the LC filter and then transmitted back to the distribution network
Implementation Method 3
after performing harmonic wave filtering by the filter inductor LN to power absorbed by the second module
Data Source
AI summary
The present invention relates to a solid testing platform and method for function testing of an intelligent phase-change switch. The testing platform includes a primary controller, a first module, a second module, a capacitor C, an intelligent phase-change switch, and a transformer. The primary controller is respectively connected to the first module and the second module, and is configured to control the operation of the first module and the second module. The first module and the second module are connected in parallel to the capacitor C. the first module is configured to feed back excess energy of the capacitor C to a distribution network. The second module is configured to control magnitude and direction of a current that flows through the intelligent phase-change switch. The capacitor C is configured to perform energy support, filtering, and smoothing. According to the present invention, not only all unbalanced operation conditions can be simulated, but also simulated power is equitably fed back to a power grid by using the testing platform, to achieve a test in a state of no power loss, without affecting a main power grid.