Generator Modelling Element for Ship Power Network Load Distribution
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Solution Overview
Problem
Digital power transmission networks in ships face challenges in mimicking analog configurations, leading to complexity and inefficiency in load distribution, as they struggle to adapt to various network configurations and require sophisticated software and circuitry, whereas analog solutions are adaptable but lack accuracy and reliability.
Innovation Solution
The implementation of a modelling element in each generator that measures switch states and uses consecutive identifiers to model the power transmission network, allowing for adaptable and accurate load distribution through two separate connection routes and a CAN bus for data communication, enabling isosynchronic load sharing without a central unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital data communication buses are used to replace analog buses for load distribution, then accuracy and reliability are improved, but device complexity increases due to difficulty in mimicking analog network configurations
Solution Approach 1:
The patent uses a digital copy of the analog network topology obtained through switch state measurement. The modelling element creates a digital representation of the physical network configuration, allowing digital load distribution algorithms to operate as if they were in an analog environment, thus maintaining simplicity while achieving digital reliability
Solution Approach 2:
The patent replaces complex digital software-based configuration management with a measurement-based approach. Instead of using sophisticated software to track and manage network configurations, the system directly measures switch states to obtain the actual topology, substituting mechanical/electrical measurement for software complexity
2Measurement precision
If digital solutions are implemented for load distribution, then accuracy is improved, but adaptability to various network configurations decreases
Solution Approach 1:
The patent implements a dynamic modelling approach where the digital network model is continuously updated based on real-time switch state measurements. This allows the system to adapt to changing network configurations automatically, maintaining both accuracy and versatility as the network topology evolves
Solution Approach 2:
The system continuously measures switch states and uses this feedback to update the network model. This closed-loop approach ensures the digital representation remains synchronized with the physical configuration, enabling accurate load distribution across various network topologies without requiring pre-programmed adaptability
Data Source
AI summary
The modelling arrangement of the configuration situation of the electric power transmission network according to the invention comprises a modelling element (7) designed to be installed in each generator of the electric power transmission network. The modelling element (7) is arranged to measure the state of the said switches until an open switch is detected and to detect the corresponding generator on the basis of the closed switch and thus to model the power transmission network comprising the detected generators and the area of the power transmission network belonging to the same electric network via closed switches.