BoP Estimator Parameter Calibration From Real-Time Power Ranges

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current methods for determining performance parameters for Balance of Plant (BoP) estimators in wind power plants are inadequate, as they often rely on electrical predesign studies that may not be available or require field measurements that are challenging due to unpredictable wind conditions.

Innovation Solution

A method that determines performance parameters for a BoP estimator using real-time measurements of power values within specific ranges, applying predetermined rules to calculate and update these parameters, which are then used in a power loss estimation algorithm to improve internal power loss estimation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If electrical predesign studies are used to determine performance parameters, then parameter determination can be performed before commissioning, but these studies are not always available or complete

Engineering Contradiction:

Improvetime for parameter determinationVSAvoidavailability of parameters

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The system performs preliminary determination of performance parameters during commissioning using real-time measurements from multiple power ranges. By establishing parameter determination routines that execute automatically during initial operation, the system ensures parameters are available before full operational deployment, eliminating the dependency on pre-commissioning predesign studies.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The BoP estimator performs self-calibration by automatically determining its own performance parameters through real-time measurements during normal operation. The system uses its own operational data across different power ranges to calculate parameters, eliminating the need for external predesign studies or manual field measurement campaigns.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If field measurements are performed to determine performance parameters, then accurate parameters can be obtained, but wind conditions do not always allow necessary measurements within the available timeframe

Engineering Contradiction:

Improveaccuracy of performance parametersVSAvoidtime required for measurements

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

Instead of performing discrete measurement campaigns that depend on specific wind conditions, the system continuously collects power measurement data during normal operation. By accumulating measurements across multiple operating cycles and power ranges, the system ensures sufficient data is gathered regardless of transient wind conditions, maintaining measurement accuracy without extending commissioning time.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The system prepares for parameter determination by continuously monitoring and storing power measurements during commissioning. This preliminary data collection occurs during routine operation rather than requiring dedicated measurement time, ensuring that sufficient data is available before parameter calculation begins.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If real-time measurements are used to determine performance parameters, then parameters can be determined during commissioning, but the system requires processing measurements from multiple power ranges

Engineering Contradiction:

Improvespeed of parameter determinationVSAvoidcomplexity of measurement processing

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The determination process is segmented into distinct power ranges (e.g., low power range and high power range), with each range processed separately to determine specific parameter sets. This segmentation simplifies the overall complexity by breaking down the measurement processing into manageable, independent calculations that can be executed systematically during commissioning.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12071934B2Method for determining performance parameters in real time

Publication Date: 2024.08.27 VESTAS WIND SYSTEMS AS

AI summary

Embodiments herein determine performance parameters for a balance of plant estimator of a power plant controller configured to control a renewable power plant comprising a plurality of power generating units, wherein the balance of plant estimator is configured to provide an internal power loss estimation of the renewable power plant. The embodiments include providing at least one first pair of associated first and second power values in a first power range, providing at least one second pair of associated first and second power values in a second power range, determining a representative of the first pair, and determining a representative of the second pair in accordance with predetermined rules, and calculating a first set of performance parameters using the representatives of the first and second pairs of associated first and second power values.