Series-Primary Transformer Supply for Balanced DC Power Distribution
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Solution Overview
Problem
Supplying electricity to high-power-consuming systems like data centers and IoT devices poses challenges due to the need for complex conversion systems and long power transmission cables, especially when transitioning from AC to DC power, which complicates the architecture and increases resource consumption.
Innovation Solution
An electrical supply system with a simplified architecture using multi-phase transformers connected in series and parallel configurations, featuring primary and secondary induction circuits with specific winding connections to balance voltages and currents, allowing for efficient DC distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex conversion systems with multiple transformers and converters are used to supply AC to DC power to data centers, then the power supply reliability is improved, but the system complexity and resource consumption increase
Solution Approach 1:
The patent divides the power supply system into multiple independent single-phase transformers connected in series on the primary side, each with its own secondary windings. This segmentation allows each transformer to handle a portion of the total load independently, improving reliability while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The patent makes the transformers multi-functional by connecting their primary windings in series to handle high voltage while their secondary windings can be connected in parallel to distribute power to multiple loads. This universal design allows the same transformer units to serve both voltage transformation and power distribution functions, reducing the need for separate conversion systems.
2Reliability
If multiple stages of transformers and converters are used for AC to DC conversion, then the power supply security is improved, but the architecture complexity increases
Solution Approach 1:
The patent merges the functions of multiple transformers by connecting their primary windings in series and secondary windings in parallel. This combination allows the system to achieve the security benefits of multiple transformation stages while presenting a simplified unified architecture that reduces the number of discrete components and connection points.
3Area of stationary object
If long power transmission cables are used to supply electricity over large areas, then the coverage area is improved, but the energy loss and system complexity increase
Solution Approach 1:
The patent segments the power distribution into multiple transformer units with secondary windings connected in parallel, each capable of serving local loads. This segmentation reduces the distance electricity must travel through transmission cables, thereby reducing energy loss while expanding the effective coverage area through distributed power points.
4Power
If a large number of power trains are used to supply high power loads, then the power capacity is improved, but the device complexity and resource consumption increase
Solution Approach 1:
The patent combines multiple transformer units by connecting their primary windings in series to achieve high voltage handling capability and their secondary windings in parallel to distribute high power loads. This merging approach achieves the required power capacity while reducing the number of separate power trains needed, thereby simplifying the overall device complexity and reducing resource consumption.
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
The system achieves balanced voltage and current distribution across multiple loads, simplifying the architecture and reducing resource consumption while ensuring reliable and secure power supply.
Implementation Method 1
each electrical transformer comprising one primary induction circuit comprising a group of primary windings, and one secondary induction circuit comprising at least one group of secondary windings
Data Source
AI summary
An electrical supply system, suitable for supplying a plurality of separate loads from one AC source, including at least two single-phase or multi-phase electrical transformers, each including one primary induction circuit and one secondary induction circuit. The primary induction circuits are connected in series forming a succession of transformers. For each of the transformers, the secondary induction circuit includes at least two groups of secondary windings, each group of secondary windings having at least one group of output terminals. One of the groups of output terminals is connected to at least one of the loads to be supplied, and another of the groups of output terminals is connected to one of the groups of output terminals of another transformer in the succession of transformers, so as to achieve a parallel connection of the secondary induction circuits.