Wind power plants with a power output range of 1.5 kW to 25 kW
Technical regulation for grid connection TF 3.2.5
Table of contents
1. Terminology and definitions 4
2. Commissioning requirements 5
3. Verification of tolerance of frequency and voltage deviations 6
4. Verification of electricity quality requirements 9
5. Verification of control and monitoring requirements 10
6. Verification of protection requirements 14
7. Verification of data communication requirements 15
To the reader
This commissioning report template contains guidelines for implementing a commissioning test to verify that a wind power plant complies with the technical, ...view middle of the document...
2.2 Test set-up
In this section, all verification set-ups, including a drawing illustrating how all important system components as well as associated programs and auxiliary tools are interlinked, must be described.
The version of all components, programs and auxiliary tools of any kind used in the verification must also be stated in this section.
2.3 Test scope
The scope of each individual commissioning test must be stated, eg which tests or subtests that have been chosen to verify a requirement.
If subtests are mutually interdependent, an account must be given of how possible impacts from previous tests have been minimised or reflected in the test results.
2.4 Test preconditions
All test preconditions (external and internal) must be stated for each individual test. Examples of internal test preconditions include wind turbine configurations, grid configuration, primary and secondary grid set-ups, maintenance condition, etc.
All external preconditions relevant to the specific test must be stated, eg wind speed, wind direction, turbulence level, grid voltage, grid frequency, etc.
2.5 Reference documents
In this section, all documents forming the basis of the test or being used during testing must be listed.
3. Verification of tolerance of frequency and voltage deviations
3.2 Normal operating conditions
R3.1 It must be possible to continuously start and operate a wind power plant engaged in normal production within the design requirements and restricted by the settings for over- and undervoltage protection as described in chapter 6.
Verify that the wind power plant is capable of engaging in continuous production within the limits stated.
R3.2 Automatic start of production is only allowed when the voltage lies within the normal production area. Verify that the wind power plant starts automatically within the limits stated.
Verify that the wind power plant does not start automatically when the limits stated are exceeded.
R3.3 The overall requirements for active power production which a wind power plant must comply with in case of frequency and voltage deviations can be seen in Figure 4. Verify that the wind power plant com-plies with the requirements stated for production.
R3.4 The wind power plant must be designed to withstand sudden phase jumps of up to 20° in the point of connection.
Verify by using a simulation model that the wind power plant stays connected to the grid within the limits stated.
Verify that the wind power plant cuts off the grid connection when the limits stated are exceeded.
R3.5 The wind power plant must supply normal production not later than 5 seconds after having returned to the normal production area. Verify by means of a simulation model that the wind power plant complies with the stated requirements for production.
3.3 Abnormal operating conditions
3.3.1 Tolerance of voltage drops
R3.6 In the point of connection a wind power plant must be able to withstand voltage drops...