Distributed Power Route Control With Redundant Bus Sequencing
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Solution Overview
Problem
Existing power system control schemes lack flexibility and efficiency in sequencing and connecting/disconnecting sources to load busses for arbitrary power system topologies, often requiring custom programming and centralized control, which complicates installation and reduces robustness.
Innovation Solution
A distributed power system control scheme that identifies and controls power system objects as sources, buses, switches, and controllers using a one-line topology, allowing for flexible installation and robust control through decentralized communication and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized control is used to sequence and connect/disconnect sources to load busses, then control coordination is achieved, but device complexity and installation difficulty increase
Solution Approach 1:
The centralized control system is segmented into distributed controller units, each responsible for local decision-making and route management. Controllers are allocated to specific objects (sources, buses, switches) and make autonomous control decisions based on local conditions and global route tables, eliminating the need for a single complex centralized controller while maintaining coordinated control through standardized communication protocols.
Solution Approach 2:
A standardized communication interface and route table structure serve as intermediaries between distributed controllers. The route table acts as a mediator that coordinates control actions across multiple controllers without requiring direct point-to-point communication between them, simplifying the control architecture while ensuring proper sequencing and coordination of source-to-load connections.
2Manufacturing precision
If custom programming is required for each power system topology, then precise control is achieved, but ease of manufacture and installation deteriorate
Solution Approach 1:
The control system uses universal controller units that can be allocated to different object types (sources, buses, switches) and function across various power system topologies. The standardized route table and communication interface enable the same controller hardware and software to adapt to different configurations without custom programming, maintaining control precision through the route-based sequencing mechanism while greatly simplifying installation and commissioning.
Solution Approach 2:
The system adapts to different power system topologies by changing operational parameters (route definitions, controller allocations, object identifiers) rather than requiring structural modifications or custom programming. The route table dynamically configures control sequences based on the specific topology, allowing precise control adaptation without increasing installation complexity.
3Reliability
If redundant control paths are implemented, then system reliability improves, but device complexity increases
Solution Approach 1:
The control system dynamically selects and activates control routes based on real-time system conditions, source availability, and load requirements. Multiple control routes are defined in the route table but not all are active simultaneously - the system dynamically switches between them as conditions change, providing redundancy without requiring all redundant paths to be actively managed at once, thus maintaining reliability while controlling complexity.
Solution Approach 2:
The route table structure and controller allocation scheme are copied across different power system configurations and topologies. Once a control scheme is established for one topology, it can be replicated and adapted for similar systems by changing route definitions and object identifiers, providing redundant control capabilities through standardized templates rather than custom complex designs for each system.
4Ease of operation
If distributed control is used instead of centralized control, then ease of operation and installation improve, but measurement and detection difficulty increases
Solution Approach 1:
Distributed controllers continuously exchange status information and control decisions through standardized communication interfaces. Each controller monitors its local objects and reports to the global route table, which maintains an updated system state. This feedback mechanism enables easy local operation while centralizing the detection and measurement of overall system state through the route table and communication network, resolving the contradiction between distributed operation ease and centralized monitoring capability.
Data Source
AI summary
Systems and apparatuses include a first controller structured to control a first power system object located on a first route of a power system, and a second controller structured to control a second power system object located on a second route of the power system. The first controller and the second controller are both structured to perform a route level function including coordination of actions of the first power system object and the second power system object, and the first controller is a principal controller and the second controller is a participant controller.