Configurable Power Conversion Interfaces for Multi-Source Electrical Systems
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Solution Overview
Problem
Existing power conversion apparatuses lack universality due to complex and non-configurable designs, making them unsuitable for various power systems such as photovoltaic, wind, and AC power grids.
Innovation Solution
A power conversion apparatus with a configurable input interface, power conversion circuit, and output interface that adapts to different electrical connections and parameters of the input power supply and load, utilizing single-pole double-throw switches and triode control to perform various power conversion functions like DC/DC, AC/DC, and step-up/step-down conversions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power conversion apparatuses are designed with fixed electrical connections for specific power systems, then they can achieve reliable power conversion for that specific system, but they lose universality and require multiple different apparatuses for different systems
Solution Approach 1:
The patent implements configurable input and output interfaces that can be set to different electrical connection modes (e.g., AC/DC, single-phase/three-phase, star/delta connections) through switch networks. This allows a single power conversion apparatus to serve multiple power system types and load requirements, eliminating the need for multiple specialized apparatuses and thereby improving universality while managing complexity through standardized configuration mechanisms.
2Reliability
If multiple specialized power conversion apparatuses are used for different power systems, then each apparatus can be optimized for its specific application, but the overall system complexity increases and maintainability deteriorates
Solution Approach 1:
By designing a universal power conversion apparatus with configurable interfaces and a standardized control system, the patent reduces the total number of different apparatus types needed in the field. This consolidation improves maintainability because technicians need to master only one apparatus type with standardized components and procedures, rather than multiple specialized types. Reliability is maintained through the ability to configure the apparatus appropriately for each specific application.
Solution Approach 2:
The patent divides the power conversion apparatus into modular functional blocks (input interface, power conversion circuit, output interface, control unit) that can be independently configured and maintained. This segmentation allows for easier repair and replacement of specific modules without affecting the entire system, thereby improving ease of repair while maintaining overall reliability.
3Adaptability or versatility
If a power conversion apparatus is designed to handle multiple power conversion functions, then it improves versatility, but the device volume increases
Solution Approach 1:
The patent combines multiple power conversion functions (AC/DC conversion, DC/AC conversion, voltage step-up/step-down, single-phase/three-phase conversion) into a single integrated power conversion circuit with configurable input and output interfaces. By merging these functions into one apparatus with shared components and a unified control system, the patent achieves versatility without proportionally increasing volume, as the same hardware can be configured for different functions rather than requiring separate dedicated circuits for each function.
Data Source
AI summary
The present invention provides a power conversion method, apparatus, and device, and a medium. The power conversion apparatus comprises: a configurable input interface, a power conversion circuit, and a configurable output interface. The configurable input interface is provided to configure a first electrical connection mode between an input power supply and the power conversion circuit, and to electrically connect the input power supply to the power conversion circuit. The configurable output interface is provided to configure a second electrical connection mode between a load and the power conversion circuit, and to electrically connect the load to the power conversion circuit. The power conversion circuit is provided to perform corresponding power conversion according to a parameter of the input power supply and a parameter of the load. Embodiments of the present invention resolve the problem in the related art of poor general applicability of a power conversion apparatus, thereby improving the general applicability of the power conversion apparatus.