Integrated Inverter-EV Charger Architecture for Shared Power Control
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Solution Overview
Problem
Existing power systems for renewable energy and electric vehicles often require separate enclosures and control systems for inverters and EV chargers, leading to increased complexity, cost, and inefficiency.
Innovation Solution
The integration of inverter-EV charger (IIEVC) circuits into a single unit, sharing components, communication devices, and control systems, to provide both inverter functionality and EV charging capabilities within a unified power system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate enclosures and control systems are used for inverter and EV charger, then each device can be optimized independently, but device complexity and installation complexity increase
Solution Approach 1:
The patent combines the inverter and EV charger into a single integrated device with shared enclosures, control systems, and communication interfaces. This merging reduces the number of separate components while maintaining the functional optimization of both devices through modular design and shared resources.
Solution Approach 2:
The integrated device performs multiple functions - both inverter operations (DC to AC conversion) and EV charging operations (AC to DC conversion) - within a single system. The control system and communication devices are designed to handle both functions universally, reducing redundancy while maintaining device-specific optimization.
2Adaptability or versatility
If separate enclosures and control systems are used for inverter and EV charger, then each device can operate independently, but manufacturing cost and installation cost increase
Solution Approach 1:
By merging the inverter and EV charger into one integrated unit, the patent reduces manufacturing costs through shared components such as enclosures, control systems, and communication devices. The independent operational capability is maintained through modular architecture that allows each function to operate autonomously when needed.
Solution Approach 2:
The universal control system and shared components reduce per-unit manufacturing costs while maintaining the ability to perform both inverter and EV charger functions independently. The integrated design achieves economies of scale without sacrificing functional independence.
3Ease of operation
If separate control systems are used for inverter and EV charger, then each device can be controlled independently, but control complexity and monitoring complexity increase
Solution Approach 1:
The patent merges the control systems of the inverter and EV charger into a single integrated control unit that can independently manage both functions. This unified control approach reduces the number of separate control systems while maintaining independent operational control through software modularization and independent control algorithms for each function.
4Ease of manufacture
If integrated inverter-EV charger is used, then installation is simplified and costs are reduced, but device complexity increases
Solution Approach 1:
The integration of inverter and EV charger into a single device simplifies installation by reducing the number of separate units to be mounted and connected. The internal complexity is managed through modular design and standardized interfaces that hide the complexity from the installation process while maintaining functional independence.
Data Source
AI summary
An power system for a power system. The power system includes multiple electrical power sources and an enclosure operatively connected to the power sources at multiple input terminals. Multiple loads operatively connect to the enclosure at multiple output terminals by multiple cables. The enclosure includes the input terminals and the output terminals and a controller unit. Multiple selection units operatively connect to the controller unit, multiple power converters are connected to multiple connection paths. The selection units connect to at least one of multiple switches connected in the connection paths. Multiple sensor units are operatively attached to the controller unit which is configured to sence multiple parameters in the connection paths. Responsive to the parameters sensed by the sensor units, the selection units select the connection paths between the electrical power sources and the loads.