Smart Load Center Panel Dynamic Power Source Switching
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Solution Overview
Problem
Existing electrical systems struggle to dynamically and efficiently switch power between grid and solar sources on a per-circuit basis, limiting the integration of solar power with grid power and failing to optimize energy usage based on utility pricing models and weather conditions.
Innovation Solution
A smart load center panel with a processor-controlled relay system that dynamically switches power between grid and solar sources for each circuit, utilizing a dielectric chassis, bus bar assembly, and individual circuit boards to enhance electrical isolation and user interaction, allowing for programmable power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional grid-powered breaker panel is used, then the system is simple and reliable, but it cannot dynamically switch between multiple power sources on a per-circuit basis
Solution Approach 1:
The patent divides the breaker panel into modular units, with each breaker independently controllable and switchable between power sources. The bus bar system is segmented to allow individual circuit switching, transforming a monolithic panel into a distributed control architecture where each circuit can be independently managed.
Solution Approach 2:
The patent introduces dynamic switching capability through electronically controlled switches (such as solid-state relays or contactors) that allow breakers to transition between grid power and solar power sources in real-time. This dynamic control enables the system to adapt to changing power availability and pricing conditions.
2Use of energy by moving object
If solar power is integrated with grid power, then renewable energy usage increases, but the integration complexity and cost increase
Solution Approach 1:
The patent designs the breaker panel to serve multiple functions: it can operate as a traditional grid-powered panel, a solar-powered panel, or a hybrid system. The same hardware infrastructure supports grid-tied operation, solar-only operation, and dynamic switching between sources, eliminating the need for separate systems.
Solution Approach 2:
The patent introduces a control system that acts as an intermediary between the power sources and the loads. This controller manages the switching logic, monitors power source availability, and coordinates the operation of multiple breakers, simplifying the integration complexity by centralizing control functions.
3Loss of energy
If power pricing models are utilized to switch circuits, then energy cost optimization improves, but the control system complexity increases
Solution Approach 1:
The patent implements feedback control by continuously monitoring power source availability, pricing signals, and load requirements. The control system uses this feedback to automatically adjust breaker switching decisions, optimizing energy costs based on real-time conditions such as utility pricing models and solar generation availability.
Solution Approach 2:
The patent enables the system to automatically manage its own power distribution without requiring constant user intervention. The programmable control logic autonomously evaluates pricing models, switches circuits between power sources, and optimizes energy usage based on pre-configured parameters.
Data Source
AI summary
A smart load center panel (10) accepts two hot legs from each of two power sources, and selectively connects each of a plurality of breakers to one of the two power sources under processor control. A dielectric chassis (12) provides structural support and electrical isolation for a plurality of individual circuit boards (28), each including a pair of breaker stabs (26) and a relay (24) operative to selectively connect each breaker stab (26) to a different power source. A bus bar assembly (20) comprises two bus bars for the hot legs of each of two power sources, and insulates the bus bars from each other and from inadvertent contact. A master printed circuit board (40) comprises slits (43, 45) defining the individual circuit board (28) except at the edges. After mounting and soldering, the edges are cut away, yielding a plurality of individual circuit boards (28). Neutral and ground bus bars (46, 52) are mounted to the side of the panel housing (12), behind a flange of a front opening.