Modular Power Panel Cooling for Scalable Building Electrification
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Solution Overview
Problem
Traditional electrical panels are inflexible and cannot be easily upgraded to accommodate increasing power demands from sources like solar panels, home storage batteries, and electric vehicle chargers, necessitating the need for modular and scalable power conversion systems.
Innovation Solution
A cooled, modular electrical panel with multiple power rails and interchangeable power interface modules, a system controller for dynamic configuration, and a heat-exchanging zone for thermal management, allowing for flexible power distribution and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional electrical panels are used, then installation is simple and structure is stable, but the panel cannot be upgraded to accommodate increasing power demands from solar panels, batteries, and EV chargers
Solution Approach 1:
The electrical panel is divided into modular components: power interface modules (PIMs) that can be independently added or removed, and a standardized backplane with multiple slots. This segmentation allows the system to be upgraded by simply adding or replacing modules without affecting the overall panel structure, directly resolving the contradiction between upgradability and structural stability.
Solution Approach 2:
The backplane is designed with universal connectors and standardized interfaces that can accommodate different types of power interface modules (rectifiers, inverters, battery management, EV charging). This universality allows a single panel structure to support multiple functions and future upgrades, enabling adaptability without increasing structural complexity.
2Power
If multiple power interface modules are added to increase power capacity, then power management capability improves, but heat generation increases requiring effective thermal management
Solution Approach 1:
Multiple cooling channels are merged into a single integrated thermal management system that serves all power interface modules. The coolant flows through a network of channels that collect heat from different modules and transport it to external heat exchangers, enabling efficient heat dissipation for high power capacity without requiring separate cooling systems for each module.
Solution Approach 2:
A coolant acts as an intermediary heat transfer medium between the power interface modules and the external environment. The coolant absorbs heat from the modules through thermal conduction and transports it away, enabling effective thermal management of high-power components without direct thermal contact between modules and external cooling infrastructure.
3Ease of operation
If power interface modules are made interchangeable and modular, then system flexibility and ease of reconfiguration improve, but connection reliability and thermal contact stability may worsen
Solution Approach 1:
The thermal management function is extracted from the electrical connection interface and implemented through a separate mechanical attachment system. The clips not only provide electrical connectivity but also press the modules against the cooling channels, ensuring stable thermal contact. This separation of thermal and electrical functions allows modular interchangeability without compromising connection reliability.
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 scalable power management and efficient heat removal, supporting various power sources and loads while allowing for easy upgrades and reconfiguration without requiring extensive rewiring.
Implementation Method 1
the coolant flows from the inlet, through the heat-exchanging zone and to the outlet and draws heat from the power interface module
Data Source
AI summary
Changing electrical power needs for buildings often requires the upgrade of the electrical panel, the addition of extra panels, or both. Herein, a single electrical panel hosts power interface modules that connect to multiple power rails within the panel. The modules, which plug into the panel, convert power between the rails, or make and break connections between the rails, under the command of a system controller. The rails are connected to switchgear to which a variety of external power sources and loads can be connected. The modules are cooled by a heat exchanger and the waste heat may be directed outside or used to heat inside the building or heat domestic water.