Commissioning Example For An Infeed With Voltage And Frequency Control For An Island Grid; Design - Siemens SINAMICS S120 System Manual

Commissioning

7.4 Commissioning example for an infeed with voltage and frequency control for an island grid.

7.4 Commissioning example for an infeed with voltage and frequency
control for an island grid.
7.4.1

Design

Generator plant
In the example, the electrical power generated by a rotating generator is fed into an island
grid. The island grid can be supplied from several power generating systems.
The generator is driven by a motor or a turbine. Examples for sources of energy are biogas,
solar energy (solar thermal), natural gas, diesel, or hydro-electric power.
Block diagram
Figure 7-1 Infeed to a island grid via a generator
Table 7- 3
Number
70
Components for infeed into an island grid via a generator
Description
1 Driving machine (turbines, blade wheel, etc. )
2 Generator
3 Motor Module
4 Active Line Module
5 Active Interface Module with integrated Voltage Sensing Module VSM10
6 Grid transformer
7 Circuit breaker
8 VSM10 Voltage Sensing Module for measuring the line voltage on the primary side of
the grid transformer
9 Island grid (low voltage)
10 Control Unit
11 Consumers
System Manual, 04/2015, A5E03347436A
Grid infeed