Power Converter Control System Synchronization
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Solution Overview
Problem
Existing power converter systems, such as inverters, often face inefficiencies due to unsynchronized outputs when multiple units are used to convert direct current to alternating current, leading to reduced performance and efficiency caused by interference and noise.
Innovation Solution
A power converter control system that synchronizes the timing of events across multiple power converters using control modules and communication links to adjust the timing of each converter, ensuring that their outputs coincide, thereby minimizing temporal differences and enhancing overall efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple inverters are used to provide sufficient power, then the power capacity is improved, but the synchronization of output timing deteriorates causing interference and reduced efficiency
Solution Approach 1:
The patent combines multiple inverter systems into a coordinated network where each inverter is synchronized to a common timing reference. The master inverter establishes a reference timing signal that slave inverters follow, merging their outputs into a synchronized composite waveform that eliminates interference while maintaining increased power capacity.
Solution Approach 2:
The system implements feedback mechanisms where timing information from the master inverter is communicated to slave inverters, and the slave inverters adjust their operation based on this feedback. This closed-loop timing synchronization ensures that all inverters operate in phase, preventing output cancellation and interference.
2Device complexity
If multiple inverters operate independently, then the system complexity is reduced, but the output performance deteriorates due to unsynchronized wave cancellation
Solution Approach 1:
The control system is segmented into master and slave functional units. The master inverter handles timing reference generation and distribution, while slave inverters focus on following the reference signal. This segmentation allows for manageable complexity while achieving synchronized high-performance output.
3Ease of operation
If inverter outputs are unsynchronized, then the ease of operation is improved, but the efficiency deteriorates due to interference and noise
Solution Approach 1:
Slave inverters automatically synchronize their operation by receiving timing reference signals from the master inverter without requiring manual coordination. This self-service synchronization mechanism maintains operational simplicity while eliminating the energy losses associated with unsynchronized operation.
Data Source
AI summary
A power converter control system includes a first power converter, at least one additional power converter, a first control module, and an additional control module. The first power converter receives direct current and outputs alternating current as a first power output. The additional power converter receives direct current and outputs alternating current as an additional power output. The first control module controls timing of events of the first power converter. The additional control module is associated with the additional power converter and controls timing of events of the additional power converter. The first control module communicates first information regarding the timing of the first power converter to the additional control module. The additional control module is configured to adjust the timing of the additional power converter to correspond with the timing of the first power converter.