Wind Turbine Generator Parameter Identification During No-Load Start-Up

Solution Overview

Problem

Manual configuration of wind turbine generator parameters leads to misconfiguration, affecting control performance and operational safety, and increases software maintenance complexity.

Innovation Solution

A method and apparatus for automatically identifying wind turbine generator parameters by controlling the generator to no-load start and shutdown, measuring rotor angle, pole-pair number, flux linkage, stator resistance, and inductance using manual enable control modes for circuit breakers and rectifier-side modulation, avoiding manual configuration errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual configuration of wind turbine generator parameters is used, then the control system can be set up, but parameter misconfiguration occurs affecting control performance and operational safety

Engineering Contradiction:

Improveoperational safetyVSAvoidparameter accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The system automatically identifies generator parameters through no-load start-up testing and signal processing, enabling the control system to self-configure without manual intervention. The parameter identification device autonomously measures rotor angle, pole-pair number, flux linkage, stator resistance, and inductance by analyzing operating data during controlled start-up and shutdown sequences.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual parameter configuration (mechanical/human operation) with automated electronic identification. The control system uses signal processing algorithms to automatically extract generator parameters from operating data, substituting the manual writing process with an automated measurement and calculation system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of manufacture

If manual configuration of wind turbine generator parameters is used, then the control system can be set up, but software maintenance complexity increases

Engineering Contradiction:

Improvesystem setupVSAvoidsoftware maintenance complexity

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The system automatically identifies generator parameters through no-load start-up testing and signal processing, enabling the control system to self-configure without manual intervention. The parameter identification device autonomously measures rotor angle, pole-pair number, flux linkage, stator resistance, and inductance by analyzing operating data during controlled start-up and shutdown sequences.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual parameter configuration (mechanical/human operation) with automated electronic identification. The control system uses signal processing algorithms to automatically extract generator parameters from operating data, substituting the manual writing process with an automated measurement and calculation system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If automated parameter identification is implemented, then parameter accuracy improves, but additional measurement and control processes are required

Engineering Contradiction:

Improveparameter identification accuracyVSAvoidcontrol process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs parameter identification during the no-load start-up and shutdown processes, which are preliminary operations before normal grid-connected operation. By conducting measurements during these mandatory preliminary steps, the system obtains accurate parameters without requiring separate dedicated measurement procedures.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control system performs multiple functions simultaneously: it controls the no-load start-up and shutdown sequences while also conducting parameter measurements and signal processing. The same control hardware and software used for operational control are utilized for parameter identification, eliminating the need for separate dedicated measurement equipment.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4266571B1Parameter identification method and parameter identification device for wind turbine

Publication Date: 2025.08.20 GOLDWIND SCI & TECH CO LTD

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AI summary

A parameter identification method and a parameter identification apparatus for a wind turbine generator are provided, in which the parameter identification method includes: controlling the generator to no-load start and shut down by adjusting a blade angle; acquiring operating data of the generator in a duration from no-load start to shutdown of the generator; and determining parameters of the generator based on the acquired operating data of the generator.