NWTC: Working With Industry: Certification: Documentation Required

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Documentation Required

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IEC 61400-22 Required

Design Documentation

The numbered elements represent required

documentation. The unnumbered elements

represent suggested information to be included in
the required documentation.

Type of Documentation

Guidelines &

SI Available

Drawings Analysis Specs

1.0 General Turbine Description Document

This document should include the

following information if applicable:

1.1 General Turbine Characteristics

and Configuration Description

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Turbine description and general

specifications

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Major component weights

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Safety systems

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Electrical power system

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Electrical control system

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Hydraulics and pneumatics

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1.2 Summary Control Philosophy

General control philosophy

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Protection system

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2.0 Design Control Quality System Document

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ISO 9001

Section 4.4 &

4.5

3.0 Control and Protection System Document

Description and component

specifications including transducers

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Control system software

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Detailed logic flow chart

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Safety system fault logic description

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Emergency shutdown

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Logic testing documentation

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Software release and version control

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NWTC: Working With Industry: Certification: Documentation Required

Overspeed sensing

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Vibration sensing

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Monitoring system

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4.0 Loads and Load cases Document

IEC 61400-1

Edition 2

(Section 3 & 4)

NREL

Significant

Interpretations

4.1 Gen. analysis approach and system

model description.

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NREL Loads

Guide

4.2 Document description and organization

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4.3 System dynamics model description

Degrees of Freedom

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Mass and Stiffness distributions

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Aerodynamic inputs

(airfoil tables, blade geometry, etc.)

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4.4 Coordinate systems

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4.5 Partial safety factors

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4.6 Material properties

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4.7 Model Validation

Analytical tests

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Comparisons w/ test data

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4.8 Dynamic behavior of all major

components and coupling of the system.

Campbell diagrams,

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Spectral plots

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Mode shapes & frequencies

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Comparisons between predictions

and measurements

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4.9 Failure analysis (e.g. fault tree)

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4.10 Load cases

(from IEC 61400-1 plus any abnormal

cases)

Extreme loads

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Fatigue load cases

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Fault loads

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4.11 Loads should be detailed for the

following critical components:

Blade

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Hub

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Low speed shaft and bearings

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Mainframe and gearbox structure

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Gearing and drive train

(including gen., brake & couplings)

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Tower top/yaw bearing

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Tower

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Tower base connection to foundation

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NWTC: Working With Industry: Certification: Documentation Required

5.0 Structural Component Specification,

Drawings and Strengths Calculations

5.1 System Level Descriptions

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General Description

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List of drawings and drawing system

description.

(e.g. drawing tree)

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Assembly drawings

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5.2 Blade structure:

NREL Stress

Guide /

Material Guide

Blade root

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Blade buckling

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Blade/hub joint

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Blade Pitch Bearing

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NREL Bearing

Guide

Tip deflection analysis

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Aerodynamic brake mechanism

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5.3 Hub structure:

NREL Stress

Guide /

Material Guide

Hub

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Teeter Pin

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Teeter Housing

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Hub/low speed shaft joint

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5.4 Low speed shaft structure:

NREL Stress

Guide /

Material Guide

Low speed shaft bearings

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5.5 Main frame structure:

NREL Stress

Guide /

Material Guide

Nacelle cover

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Mainframe

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Mechanical brake

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Gearbox

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Gearbox/mainframe connection

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Gearbox/generator coupling

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Brake (peak torque rating plus energy

capacity)

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5.6 Generator:

Generator/nacelle connection

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5.7 Yaw mechanism:

Yaw bearing

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NREL Bearing

Guide

Tower top structure

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Mainframe/yaw bearing connection

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Yaw bearing/tower top connection

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NWTC: Working With Industry: Certification: Documentation Required

5.8 Tower structure:

NREL Stress

Guide /

Material Guide

Tower

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Tower/foundation connection

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6.0 Mechanical and Electrical Component

Specification and Performance Analysis

Documents

6.1 Mechanical Components

Transmission Gears, Bearings, Cooling,

Filtering and Seals

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NREL Gearbox

Guide

Brakes (including power supply

requirements)

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Aerodynamic Braking Devices (including

power supply requirements)

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Yaw Drive (including power supply

requirements)

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Pitch system (including power supply)

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Locking Devices (including power supply

requirements)

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Auxiliary systems power supply

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6.2 Electrical Component drawings and

technical specifications

UL Electrical

Guide

One line diagram (basic power circuit

with safety devices)

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Full power circuit schematic

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Electrical systems schematics

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Turbine power schematic

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Power Converter

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Cable suspension

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Cable twist

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Grid connection

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Generator system

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Contactors

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Grounding

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Lightning Protection

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7.0 Component Test Reports

7.1 Blade Structural Tests

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IEC 61400-23

8.0 Plans / Manuals

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NWTC: Working With Industry: Certification: Documentation Required

Specifications for how the turbine must

be installed, operated and maintained

are based on design on detailed

engineering

plans. These plans provide the rational

for the various operations are

considered separate and different

documents than basic instruction

manuals. These documents should

contain both the plans and the resulting

manuals.

8.1 Operating Plan & Manual

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NREL

Commissioning

Guide

8.2 Maintenance Plan & Manual

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NREL

Commissioning

Guide

8.3 Safety Plan & Manual

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Fire protection

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Protection from falling objects

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Climbing provisions

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Warning signs

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Escape routs

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Guarding

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Securing points

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Emergency lighting

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High voltage equipment

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8.4 Installation Plan & Manual

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NREL Commis-

sioning Guide

9.0 Type Testing

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9.1 Safety Test and Dynamic Behavior Test

Report

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IEC 61400-22

9.2 Structural Load Test Report

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NREL Loads

Test Procedure

10.0 Turbine Characteristics Testing

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10.1 Power Performance Test Report

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IEC 61400-12

10.2 Acoustic Emissions Report

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IEC 61400-11

10.3 Power Quality Test Report

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IEC 61400-21

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NWTC: Working With Industry: Certification: Documentation Required

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Prepared by

National Wind Technology Center

National Renewable Energy Laboratory

Operated for the

U.S. DEPARTMENT OF ENERGY

by the Midwest Research Institute

Updated: November 01, 1998

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