System and method for dynamic estimation of converter-based resource reactive power

DE602021031021T2Active Publication Date: 2025-05-21GENERAL ELECTRIC RENOVABLES ESPANA SL
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Patent Information

Application Number
DE602021031021
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-06-19
Filing Date
2021-06-15
Publication Date
2025-05-21
Estimated Expiration
2041-06-15

AI Technical Summary

Technical Problem

Wind farm-level controllers face challenges in accurately estimating reactive power capability of wind turbine generators due to constraints like voltage and reactive power limits, leading to potential windup and reduced control effectiveness.

Method used

A method for dynamically estimating reactive power capability of inverter-based resources by generating command signals and using feedback signals to set upper and lower limits for regulators, allowing for accurate communication of reactive power capabilities to system-level controllers, enabling effective control of the power system.

Benefits of technology

This approach allows for improved plant-level volt/VAR control by ensuring accurate reactive power management, preventing windup and optimizing reactive power distribution among wind turbine generators, even when constraints are reached.

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Abstract

A method for controlling a power system includes generating, via at least one inverter-based resource, one or more command signals via a regulator of at least one inverter-based resource of the power system. Further, the method includes dynamically estimating, via the at least one inverter-based resource, a reactive power capability of the at least one inverter-based resource based, at least in part, on the one or more command signals. Further, the method includes sending, via the at least one inverter-based resource, the reactive power capability to the system-level controller. Thus, the method includes controlling the power system based on the reactive power capability.
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