Meter Socket Adapter With Whole-Building Disconnect for DER Islanding
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Solution Overview
Problem
Existing electrical power storage and deployment systems, particularly in electric vehicles, lack efficient mechanisms for disconnecting from the utility grid and managing distributed energy resources, leading to potential overcurrent conditions and inefficient energy management.
Innovation Solution
A meter socket adapter (MSA) system with an integrated whole-building disconnect switch, sensors for measuring grid voltage and current, and a communication circuit to transmit measurements and receive disconnect signals from distributed energy resource (DER) controllers, enabling efficient control of DERs and prevention of overcurrent conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bidirectional distributed energy resources are connected to the utility grid, then energy management capability and grid stability are improved, but risk of overcurrent conditions and system complexity increase
Solution Approach 1:
The meter socket adapter serves as an intermediary device between the utility grid and multiple bidirectional DERs. It includes an integrated whole-building disconnect switch and control circuitry that mediates power flow, monitors system conditions, and coordinates disconnection events. This intermediary structure simplifies the overall system architecture by providing a centralized control point rather than requiring complex coordination between multiple DER controllers.
Solution Approach 2:
The meter socket adapter performs multiple functions: it acts as a disconnect switch for the entire building, monitors grid voltage and DER output, controls islanding operations, and prevents overcurrent conditions. By consolidating these diverse functions into a single universal device, the system complexity is reduced while maintaining comprehensive energy management capability.
2Device complexity
If distributed energy resources operate independently without centralized coordination, then system simplicity is maintained, but overcurrent conditions and inefficient energy management occur
Solution Approach 1:
The meter socket adapter incorporates a control circuit that continuously monitors grid voltage, current, and DER output characteristics. This feedback mechanism enables the system to detect overcurrent conditions in real-time and automatically actuate the disconnect switch when threshold violations are detected, ensuring reliable overcurrent prevention while maintaining relatively simple system architecture.
Solution Approach 2:
The control circuit within the meter socket adapter autonomously monitors system conditions and triggers disconnection events without requiring external intervention or complex inter-DER communication. The system essentially polices itself by detecting overcurrent conditions and automatically protecting the grid, maintaining simplicity while ensuring reliability.
3Speed
If whole-building disconnect switch is integrated into the meter socket adapter, then disconnection speed and grid stability are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the whole-building disconnect switch, voltage sensors, communication circuits, and control logic into a single integrated meter socket adapter device. This merging of previously separate components into one unified device enables fast disconnection response while managing manufacturing complexity through integrated design. The adapter becomes a plug-and-play solution that replaces traditional meter sockets.
Solution Approach 2:
The meter socket adapter is pre-configured with the disconnect switch and control circuitry before installation. When deployed, it immediately begins monitoring grid conditions and can actuate disconnection without requiring additional setup or coordination, achieving rapid response speed while the integration complexity is handled during manufacturing rather than installation.
4Measurement precision
If sensors and communication circuits are added to monitor grid voltage and receive disconnect signals, then control precision and energy efficiency are improved, but device complexity and cost increase
Solution Approach 1:
The meter socket adapter integrates voltage sensors, current monitoring, communication circuits, and disconnect control into a single multi-functional device. These components work together as a unified system to provide precise grid monitoring and controlled disconnection, achieving measurement precision and energy efficiency while managing complexity through integration rather than separate distributed components.
Data Source
AI summary
A meter socket adapter may include an integrated whole-building disconnect switch configured to disconnect a building associated with the meter socket adapter from a utility grid, a distributed energy resource (DER) interface to connect a distributed energy resource (DER), and an energy management system (EMS) configured to monitor electrical current passing through the meter socket adapter and, based on the monitored current, actuate the whole-building disconnect switch.