Hybrid Generator Controller Transient Response Optimization
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Solution Overview
Problem
Hybrid energy systems face challenges in minimizing the output of energy storage devices while maintaining transient response requirements, as larger capacity storage devices increase manufacturing costs and existing solutions do not effectively address transient response improvements in hybrid systems.
Innovation Solution
A controller is used to manage the operational speeds of generator sets and energy storage devices, adjusting energy transfer rates based on load changes to optimize energy distribution and reduce the need for high-capacity storage, by increasing generator set output when the energy storage device is engaged and decreasing it when not needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the capacity of the energy storage device is increased to meet transient response needs, then the transient response capability is improved, but the manufacturing cost increases
Solution Approach 1:
The controller proactively increases the generator set output before the energy storage device is fully engaged, preparing the primary energy source to take over load sooner. This preliminary action reduces the duration and magnitude of energy storage discharge, allowing for smaller capacity devices while maintaining transient response requirements
Solution Approach 2:
The control system continuously monitors energy storage device engagement status and load conditions, dynamically adjusting generator set output in response. This feedback mechanism ensures the generator set responds appropriately when the energy storage device is engaged, optimizing the transition and reducing the energy storage capacity needed
2Ease of manufacture
If the energy storage device capacity is minimized to reduce manufacturing costs, then the manufacturing cost decreases, but the transient response capability deteriorates
Solution Approach 1:
By increasing generator set output in advance of peak load demand, the system compensates for smaller energy storage capacity, ensuring transient response requirements are met despite minimized storage device size
Solution Approach 2:
The controller dynamically changes the operational parameters of the generator set (output level, engagement timing) to optimize the interaction with the minimized energy storage device, ensuring transient response requirements are satisfied with reduced storage capacity
Data Source
AI summary
A hybrid energy system including a controller that is coupled to at least one generator set and to at least one energy storage device. The controller is configured to cause the at least one generator set to operate at a first operational speed and a second operational speed in response to a change in the load. The controller receives notice that the at least one energy storage device is providing energy to the load and, in response thereto, to changes the amount of energy that the at least one generator set is providing to the load by causing the at least one generator set to operate at a third operational speed.