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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

U

Turbine description and general specifications

U

U

Major component weights

U

Safety systems

U

Electrical power system

U

Electrical control system

U

Hydraulics and pneumatics

U

1.2

Summary Control Philosophy

General control philosophy

U

Protection system

U

2.0

Design Control Quality System Document

U

ISO 9001 Section 4.4 & 4.5

3.0

Control and Protection System Document

Description and component specifications including transducers

U

U

U

Control system software

U

Detailed logic flow chart

U

U

Safety system fault logic description

U

U

Emergency shutdown

U

U

Logic testing documentation

U

Software release and version control

U

Overspeed sensing

U

U

Vibration sensing

U

U

Monitoring system

U

U

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.

U

U

NREL Loads Guide

4.2

Document description and organization

U

4.3

System dynamics model description

Degrees of Freedom

U

Mass and Stiffness distributions

U

U

Aerodynamic inputs
(airfoil tables, blade geometry, etc.)

U

U

4.4

Coordinate systems

U

4.5

Partial safety factors

U

U

4.6

Material properties

U

4.7

Model Validation

Analytical tests

U

Comparisons w/ test data

U

4.8

Dynamic behavior of all major
components and coupling of the system.

Campbell diagrams,

U

Spectral plots

U

Mode shapes & frequencies

U

Comparisons between predictions
and measurements

U

4.9

Failure analysis (e.g. fault tree)

U

4.10

Load cases
(from IEC 61400-1 plus any abnormal cases)

Extreme loads

U

Fatigue load cases

U

Fault loads

U

4.11

Loads should be detailed for the
following critical components:

Blade

U

Hub

U

Low speed shaft and bearings

U

Mainframe and gearbox structure

U

Gearing and drive train
(including gen., brake & couplings)

U

Tower top/yaw bearing

U

Tower

U

Tower base connection to foundation

U

5.0

Structural Component Specification,
Drawings and Strengths Calculations

5.1

System Level Descriptions

U

General Description

U

List of drawings and drawing system description.
(e.g. drawing tree)

U

Assembly drawings

U

5.2

Blade structure:

NREL Stress Guide / Material Guide

Blade root

U

U

Blade buckling

U

U

Blade/hub joint

U

U

Blade Pitch Bearing

U

U

U

NREL Bearing Guide

Tip deflection analysis

U

Aerodynamic brake mechanism

U

U

U

5.3

Hub structure:

NREL Stress Guide / Material Guide

Hub

U

U

Teeter Pin

U

U

Teeter Housing

U

U

Hub/low speed shaft joint

U

U

5.4

Low speed shaft structure:

NREL Stress Guide / Material Guide

Low speed shaft bearings

U

U

5.5

Main frame structure:

NREL Stress Guide / Material Guide

Nacelle cover

U

U

Mainframe

U

U

Mechanical brake

U

U

U

Gearbox

U

U

Gearbox/mainframe connection

U

U

Gearbox/generator coupling

U

U

U

Brake (peak torque rating plus energy capacity)

U

U

U

5.6

Generator:

Generator/nacelle connection

U

U

5.7

Yaw mechanism:

Yaw bearing

U

U

U

NREL Bearing Guide

Tower top structure

U

U

Mainframe/yaw bearing connection

U

U

Yaw bearing/tower top connection

U

U

5.8

Tower structure:

NREL Stress Guide / Material Guide

Tower

U

U

Tower/foundation connection

U

U

6.0

Mechanical and Electrical Component
Specification and Performance Analysis Documents

6.1

Mechanical Components

Transmission Gears, Bearings, Cooling, Filtering and Seals

U

U

U

NREL Gearbox Guide

Brakes (including power supply requirements)

U

U

U

Aerodynamic Braking Devices (including power supply requirements)

U

U

U

Yaw Drive (including power supply requirements)

U

U

U

Pitch system (including power supply)

U

U

U

Locking Devices (including power supply requirements)

U

U

U

Auxiliary systems power supply

U

U

U

6.2

Electrical Component drawings and
technical specifications

UL Electrical Guide

One line diagram (basic power circuit with safety devices)

U

Full power circuit schematic

U

Electrical systems schematics

U

Turbine power schematic

U

Power Converter

U

U

U

Cable suspension

U

U

U

Cable twist

U

U

U

Grid connection

U

U

U

Generator system

U

U

U

Contactors

U

U

U

Grounding

U

U

U

Lightning Protection

U

U

U

7.0

Component Test Reports

7.1

Blade Structural Tests

U

IEC 61400-23

8.0

Plans / Manuals

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

U

U

NREL Commissioning Guide

8.2

Maintenance Plan & Manual

U

U

NREL Commissioning Guide

8.3

Safety Plan & Manual

U

U

Fire protection

U

U

Protection from falling objects

U

U

Climbing provisions

U

U

Warning signs

U

U

Escape routs

U

U

Guarding

U

U

Securing points

U

U

Emergency lighting

U

U

High voltage equipment

U

U

8.4

Installation Plan & Manual

U

U

NREL Commis-
sioning Guide

9.0

Type Testing

U

9.1

Safety Test and Dynamic Behavior Test Report

U

IEC 61400-22

9.2

Structural Load Test Report

U

NREL Loads Test Procedure

10.0

Turbine Characteristics Testing

U

10.1

Power Performance Test Report

U

IEC 61400-12

10.2

Acoustic Emissions Report

U

IEC 61400-11

10.3

Power Quality Test Report

U

IEC 61400-21

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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 21, 2002