Generator Control Parameter Tuning for Microgrid Instability
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Solution Overview
Problem
Existing generator control methods, particularly static control laws, fail to effectively manage short-duration and high-amplitude instabilities in microgrids, leading to overvoltage and overcurrent issues that can degrade generators and destabilize the system.
Innovation Solution
A dynamic control method adjusts parameter values of the control law in real-time to ensure that target output values do not exceed allowable limits, using a dynamic control law that modifies parameters based on current measurements and minimizes deviations from fixed values to maintain stable generator operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If virtual impedances are added to the control law, then the inverter stability is improved, but the device complexity increases
Solution Approach 1:
Instead of adding virtual impedances that increase system complexity, the invention achieves stability by dynamically changing parameter values of the existing control law. This approach improves inverter stability during instability events without introducing additional complex control elements.
Data Source
AI summary
Method for controlling a generator comprising an inverter and an electrical energy source, the generator being configured to deliver output electrical values to an electrical distribution grid, the inverter being controlled by a control law, the control law comprising a set of fixed values of parameters for modelling the functioning of a synchronous virtual generator so that the control law is configured to determine at least one target output value that must be delivered by the generator to the electrical distribution grid.