Introduction to bladed fault simulation method

It was once considered that the power generation process is the most important part of wind turbine , Explore the maximum capture of wind energy , Improve power generation efficiency ; Against unpredictable wind speeds , Control the stable operation of the unit . However, in the unit design stage , The ultimate load is often the limiting factor affecting the unit cost , The ultimate load often occurs during the shutdown of the unit . And compared with thermal power units, wind power is , There are many times of downtime during operation , The fatigue load during shutdown shall not be neglected .

This period of time is right Bladed The method of software simulating downtime is sorted out , Including software settings and external controller program implementation and other functions , Take notes to encourage you .

One 、 Shutdown simulation （ Panel settings ）

Set the shutdown trigger signal and time through software , Simulate the shutdown process , The shutdown logic design can be verified , Calculate the load at the position of key components .

Shutdown simulation , The simulation functions of the software include normal shutdown and emergency shutdown ： Normal shutdown is used for general failure of the unit , In this case, compare “ soft ” Control mode of , The downtime is relatively long ; Emergency shutdown is the shutdown mode adopted in case of serious failure of the unit , Simple and crude , The goal is to make the unit shut down quickly , No more serious damage .

1.1  Normal shutdown simulation process

（1） Select... Of the simulation ribbon “Normal Stop” modular .

 

       （2） double-click , Set simulation parameters , Compared with normal generation simulation , It is necessary to increase the set downtime start time （Time to begin a stop） And downtime （ You can set the length , Prevent the unit from quitting the simulation process directly after shutdown ）,OK.

 

（3） In the detailed definition area , Find the definition of normal shutdown “Normal stop definition”, Double click to set the shutdown parameters .

 

（4） Check the panel “Defined as shown”, Set the retraction speed , Maximum angle of feathering , Parameters such as the rotating speed of the generator for mechanical braking .( Define relevant contents through external controller , It is introduced in the following chapters )

 

       （5） then , Can “RUN NOW” Calculate , Look at the simulation results .

 

1.2  Emergency stop simulation process

       The setting of the emergency stop simulation is similar to the normal shutdown process , Double click to select “Emergency Stop” Options , Set relevant simulation parameters .

 

We need to pay attention to , The parameter setting of emergency shutdown is different from that of normal shutdown , It is necessary to set the triggering mode of pitch system and mechanical brake during emergency shutdown , Here's the picture ：（ The external controller definition method will be described later ）

 

Two 、 Shutdown simulation （ External control definition ）

...........

Please pay attention to the official account. “ Sanbu Laboratory ” see

 

Welcome to exchange

official account ：      Sanbu Laboratory   Divination_3_LAB

CSDN：     https://blog.csdn.net/lab_3D

Bilibili：     https://space.bilibili.com/349165004

Wind power technology exchange QQ Group ：117334964 （ Add group notes “ From the official account ”）