Priority-Based Wind Turbine SCADA Data Transmission
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Solution Overview
Problem
Existing wind turbine monitoring and control systems face delays in transmitting critical power control data due to high volumes of monitoring and control data, leading to potential operational hazards in wind parks.
Innovation Solution
Implementing a data communication network with priority-based data packet transmission, where power control related data is given higher priority, allowing it to be transmitted faster and independently of network traffic, using protocols like GOOSE/GSSE and multiple protocols for different priority levels, and device drivers to encode and decode packets with priority definitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all monitoring and control data are transmitted with equal priority through the data communication network, then the network structure remains simple and uniform, but critical power control data experiences delays due to high volumes of non-critical monitoring data
Solution Approach 1:
The patent applies local quality by assigning different transmission priorities to different types of data packets. Critical power control data packets are given high priority while routine monitoring data packets receive normal priority. This is implemented through priority fields in the data packet structure and corresponding priority handling in device drivers and network switches, ensuring that critical data receives preferential treatment in terms of transmission timing and resource allocation without fundamentally changing the network architecture.
2Speed
If a separate high-priority network is established for critical data transmission, then transmission speed and reliability of critical data improve, but system complexity and cost increase due to additional cabling and network infrastructure
Solution Approach 1:
The patent implements dynamics by enabling flexible, dynamic priority-based scheduling within the existing network infrastructure. The system can dynamically adjust transmission priorities based on data type, network conditions, and operational requirements. Device drivers and network switches can dynamically allocate bandwidth and transmission resources to high-priority power control data without requiring a separate physical network, allowing the system to adapt to changing conditions while maintaining cost-effectiveness.
Solution Approach 2:
The existing data communication network is made multi-functional by enabling it to handle both high-priority power control data and normal-priority monitoring data simultaneously through priority-based queuing and scheduling mechanisms. The same network infrastructure, cabling, and switches serve dual purposes: ensuring rapid transmission of critical data while also carrying routine monitoring traffic, thereby eliminating the need for separate dedicated networks.
3Loss of time
If critical power control data is transmitted with higher priority, then operational response time improves and potential hazards are reduced, but data packet handling and processing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring priority levels and identification markers in the data packet structure before transmission. Power control data packets are pre-marked with high-priority indicators, and the system pre-establishes priority-based queuing mechanisms in device drivers and network switches. This preliminary setup enables automatic priority handling without requiring complex real-time decision-making or processing during data transmission, reducing the actual processing complexity while ensuring rapid response.
Data Source
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AI summary
The invention relates to a system of at least two distributed wind turbines wherein said at least two wind turbines communicate via a data communication network - said data communication network communicates monitoring and control data (MCD) to and from said at least two wind turbines (WT), - said data communication network communicates power control related data (PCRD) to and from said at least two wind turbines (WT), - said power control related data (PCRD) has higher transmission priority than a subset of said monitoring and control data (MCD) and wherein - said transmission priority is defined in relation to a protocol According to the present invention a data communication network is understood as a network that communicated data in relation to a system of distributed wind turbines. In accordance with an embodiment of the invention, the data communication network is a SCADA network (SCADA: supervisory control and data acquisition) system. A SCADA system is a category of software application programs for process control, the gathering of data potentially in real time from remote locations in order to control equipment and conditions and the network associated with this.