Power Management Controller Dividing Stored Electricity Into Long And Short Term Domains
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Solution Overview
Problem
Current power management systems lack effective methods to efficiently manage stored electricity in storage cells, particularly in consumer facilities, to respond to demand response requests and maintain power leveling within predetermined ranges, leading to potential penalties and inefficiencies.
Innovation Solution
A power management apparatus and method that divides the stored electricity into a first domain for long-term control and a second domain for short-term control, using a controller to allocate and manage these domains to optimize peak cut control, demand response compliance, and leveling control, prioritizing economic efficiency and capacity utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If stored electricity is managed as a single domain, then management is simple, but long-term and short-term control objectives conflict and cannot be optimized simultaneously
Solution Approach 1:
The patent divides the stored electricity management into two distinct domains: a first domain for long-term control objectives and a second domain for short-term control objectives. This segmentation allows each domain to be optimized independently according to its specific time horizon and control requirements, resolving the conflict between simple management and optimized control performance.
2Productivity
If stored electricity is divided into multiple domains for separate control, then long-term and short-term control can be optimized independently, but management complexity increases
Solution Approach 1:
The patent introduces a power management apparatus as an intermediary system that automatically manages the divided domains. The apparatus includes control logic that handles the complexity of coordinating long-term and short-term control strategies, freeing operators from manually managing the complexity while still achieving optimized control in both time horizons.
3Speed
If all stored electricity is allocated to short-term control, then immediate response to demand is improved, but long-term power leveling and economic efficiency deteriorate
Solution Approach 1:
By segmenting the stored electricity into separate domains for long-term and short-term control, the system ensures that each time horizon has dedicated capacity allocated to it. This prevents short-term control from consuming all available stored electricity, thereby maintaining sufficient reserves for long-term power leveling and economic optimization while still enabling rapid response when needed.
4Reliability
If all stored electricity is allocated to long-term control, then power leveling and economic efficiency are improved, but ability to respond to immediate demand deteriorates
Solution Approach 1:
The segmented domain structure ensures that the second domain is specifically reserved for short-term control objectives, guaranteeing that sufficient stored electricity capacity is always available for immediate demand response. This segmentation prevents long-term control from monopolizing all stored electricity, thereby maintaining rapid response capability while still achieving effective long-term power leveling.
Data Source
AI summary
Power management apparatuses, power management systems, and power management methods for controlling power of a storage cell so as to allow appropriate compliance with requests from both the power supply side and the consumer side. A power management apparatus is provided in a consumer facility and includes a controller that manages the amount of stored electricity. The controller divides the amount of stored electricity at least into a first domain and a second domain and manages the domains, where the first domain is a domain in which to perform long-term control and the second domain is a domain in which to perform short-term control during power management in the consumer facility.