Microgrid Mode Selection for Multi-Source Power Distribution
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Solution Overview
Problem
Existing microgrid systems lack efficient methods for selecting optimal operating modes based on various power sources and load conditions, leading to suboptimal power distribution and management.
Innovation Solution
A microgrid controller that receives a sequence of operations via a human-machine interface, determines an operating mode from multiple options, and controls power supply interfaces to manage power distribution effectively among different power sources and loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a microgrid controller manages multiple different types of power supply assets, then the adaptability and versatility of the power supply system is improved, but the device complexity and difficulty of control increases
Solution Approach 1:
The patent segments the heterogeneous power supply assets into distinct types (synchronous generators, asynchronous generators, inverters) and assigns specific control strategies to each type. This segmentation allows the controller to manage complexity by treating each asset type independently with tailored control parameters, while still achieving versatile power supply management across diverse assets.
Solution Approach 2:
The patent implements a universal controller architecture that can manage multiple types of power supply assets through a standardized interface. The controller determines operating modes based on the specific asset type and applies appropriate control strategies, enabling a single controller to universally manage diverse assets including synchronous generators, asynchronous generators, and inverter-based resources.
2Productivity
If the microgrid controller determines optimal operating modes from multiple options, then the power management efficiency is improved, but the computational requirements and processing time increase
Solution Approach 1:
The patent pre-establishes multiple operating modes with predefined control parameters and strategies for different power supply asset types. Instead of calculating optimal modes in real-time, the controller selects from pre-determined modes based on current system conditions, significantly reducing computational requirements and processing time while maintaining efficient power management.
Solution Approach 2:
The patent changes the control approach from continuous optimization to discrete mode selection. By defining specific operating modes with predetermined parameter sets (such as reactive power compensation strategies, voltage control levels, and frequency regulation parameters), the system achieves efficient power management through parameter selection rather than continuous calculation.
3Manufacturing precision
If the system provides detailed control over different types of power supply assets, then the manufacturing precision and control accuracy is improved, but the ease of operation decreases
Solution Approach 1:
The patent creates simplified representations or models of complex power supply assets, where each asset type is represented by standardized parameters and characteristics. This copying approach allows detailed control strategies to be applied through simplified interfaces, maintaining control accuracy while improving ease of operation by hiding complex underlying details behind standardized control mechanisms.
Data Source
AI summary
Systems and methods for operating a microgrid may include a plurality of microgrid power supply assets of a microgrid, where microgrid power supply assets include a first microgrid power supply asset of a first type and a second microgrid power supply asset different from the first type, and a microgrid controller communicably coupled to the plurality of microgrid power supply assets, and configured to control supply of power from one or more of the plurality of microgrid power supply assets to one or more loads of the microgrid. The microgrid controller may receive, via a human machine interface (HMI), a sequence of operations in which to control power supply to the microgrid; determine an operating mode in which to supply power to the load(s), according to the sequence of operations; and control one or more interfaces according to the operating mode, to control the supply of power to the load(s).