Local Energy Management Set-Point Control for Mixed Power Sites
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Solution Overview
Problem
Current local energy management systems lack the capability to effectively manage and control a mixture of power generating systems at local sites, limiting their ability to expand power and revenue generation while providing grid services.
Innovation Solution
A local energy management system (LEMS) that communicates with external entities and local power generating assets, receives energy objectives, processes raw data, generates set points, and adjusts operational settings to perform grid services and transfer power between local assets and the grid, incorporating a combination of electric vehicle station equipment, fixed energy storage systems, and local generation resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed energy storage systems are deployed as single power sources for specific services, then the system can provide dedicated backup power capability, but the system cannot expand power and revenue generation capabilities through multiple services
Solution Approach 1:
The patent applies multi-functionality by enabling fixed energy storage systems to perform multiple grid services including frequency regulation, voltage support, and backup power through a unified local energy management system that coordinates different power generating assets, allowing the same infrastructure to serve multiple purposes simultaneously
2Productivity
If local sites use only external power generating systems, then the system can maintain simple infrastructure configuration, but the system cannot expand power and revenue generation capabilities at the local site level
Solution Approach 1:
The patent combines external power generating systems with local distributed energy resources including fixed energy storage systems and other local power sources into an integrated local energy management system, merging multiple power generation capabilities to expand productivity while managing infrastructure complexity through unified control
3Adaptability or versatility
If the local energy management system manages multiple power generating assets, then the system can provide comprehensive grid services and expand revenue capabilities, but the system requires complex data processing and control mechanisms
Solution Approach 1:
The local energy management system applies self-service by automatically receiving raw data from multiple power generating assets, processing the data through protocol adapters, generating appropriate set points, and conveying control signals back to assets without requiring external manual intervention, thereby enabling comprehensive grid service management through automated data processing
Data Source
AI summary
Certain aspects of the present disclosure relate to a local energy management system (LEMS) at local mixed power generating sites for providing grid services and grid service applications. The LEMS generally serves as a local power control agent for facilitating energy management at the local site level by controlling and leveraging a plurality of local assets deployed at the local site, and combining a plurality of generated power from each site which acts as its own virtual power plant for delivering grid services to the grid. In addition, the LEMS has the ability to effectively handle and fulfill energy and electrical objectives of the grid services, including regulation or demand response objectives from the grid, by conveying operational set points that control the power charge and discharge at each local asset in order to meet those objectives.