Grid Codes

Question 1

Grid Codes - Purpose and Scope

Answer 1

Question 2

Overview of voltage and frequency limitations

Answer 2

Question 3

Static and dynamic grid support

Overview of the concepts

Answer 3

Question 4

Voltage control via power

Answer 4

Question 5

Voltage control techniques

Answer 5

Question 6

Voltage control techniques

Q(V)

Answer 6

Question 7

Voltage control techniques

Q(P)

Answer 7

Question 8

Voltage control techniques

Constant power factor

Answer 8

Question 9

Reactive power adjustment

Answer 9

Question 10

Grid frequency dynamics: Inertial reserve and primary control

Answer 10

Question 11

Grid frequency support

Answer 11

Question 12

Prioritization of requirements

Answer 12

Question 13

Electromagnetic compatibility in distribution grids

Grid disturbances

Answer 13

Question 14

Overview of disturbance levels and limitations

Grid disturbances

Answer 14

Question 15

Short circuit power

Grid disturbances

Answer 15

Question 16

Grid Codes: Summary

Answer 16

Question 17

What is the scope of grid codes (i.e. for what are they valid)?

Exercise 5: Task 1.1

Answer 17

Question 18

Exercise 5: Task 1.2

Answer 18

Question 19

Exercise 5: Task 1.3

Answer 19

The node voltage, the grid frequency and the reactive power generation of a generation unit connected to medium voltage grid are plotted in Figure 2. According to the
values given in Figure 1, at which time the generation unit would have disconnected
from the distribution grid? Which limitation is violated?

Question 20

Exercise 5: Task 1.4

Answer 20

Question 21

Exercise 5: Task 1.5

Answer 21

Question 22

Solve Exercise 5: Task 2

Question 23

Solve Exercise 5: Task 3

Question 24

Solve Exercise 5: Task 4