Wind Turbine Measurement Synchronization for Grid Voltage Stability
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Solution Overview
Problem
Wind power installations operating independently can interfere with each other when stabilizing network voltage due to differing voltage measurements, leading to uneven distribution of network support, especially when parameters like network voltage fluctuate.
Innovation Solution
Implementing a method where wind power installations synchronize their measurement times using an external time signal, such as GPS, to ensure uniform detection and response to network parameters, allowing for coordinated network support without direct communication between units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wind power installations operate independently to feed into the network, then each installation can autonomously implement network support measures, but the installations may detect different voltage values due to fluctuations and operate against each other, leading to uneven distribution of network support
Solution Approach 1:
The patent merges the measurement timing of multiple independent wind power installations by synchronizing them to a common external time signal. This ensures all installations measure network parameters at the same synchronized measurement times, preventing conflicting autonomous actions while maintaining operational independence. The installations continue to operate autonomously but coordinate their measurements through time synchronization.
Solution Approach 2:
The patent introduces an external time signal as an intermediary that mediates between multiple independent wind power installations. This time signal serves as a common reference that coordinates the measurement activities of all installations without requiring direct communication between them, thus maintaining autonomy while ensuring consistent measurement timing across the network.
2Adaptability or versatility
If wind power installations measure network parameters at different times, then each installation can operate independently, but voltage fluctuations cause different installations to detect different values and initiate conflicting support measures
Solution Approach 1:
The patent implements periodic measurement actions synchronized to a common time signal. All wind power installations perform measurements at regular, synchronized intervals determined by the external time signal, ensuring that measurements across the network are temporally consistent while maintaining the periodic nature of monitoring activities.
Solution Approach 2:
The patent applies preliminary action by having all installations synchronize their measurement timing in advance based on the external time signal. This pre-coordination of measurement times ensures that when voltage fluctuations occur, all installations are measuring at the same moment, eliminating the problem of detecting different values due to temporal mismatches.
3Device complexity
If multiple wind parks operate independently without central control, then coordination between different manufacturers' installations is difficult, but implementing central control increases system complexity
Solution Approach 1:
The patent applies universality by using a common external time signal that serves all wind power installations regardless of manufacturer or location. This universal time reference enables coordination across diverse installations without requiring manufacturer-specific protocols or complex multi-vendor integration systems, maintaining simplicity while achieving broad compatibility.
Data Source
AI summary
The present invention concerns a method of feeding electric power into an electric network wherein the feed is effected by means of at least one wind power installation with a first feed-in arrangement at a feed-in point into the electric network, and the feed is effected in dependence on electric parameters in the network and measurement values of the electric parameters or measurement values for determining the electric parameters are detected at measurement times at predetermined time intervals and wherein the measurement times are synchronized to an external time signal available outside the first feed-in arrangement.