TSTE26 Powergrid and Technology for Renewable Production, 6hp
The course will give knowledge in applications of power electronics, how a power converter operates in a system for energy production as well as the control of the powergrid. Focus is on renewable energy production and its connection and control in a powergrid. The course has three main blocks:
- Technology for energy production based on pv, wind and hydro sources: Includes the properties of pv-cells and how a pv-system is controlled to obtain high efficiency and economy of energy production. Wind power system is described to give basic understanding of different turbine and generator types, including the mechanical and electrical control systems. Difference between sea- and land based wind power systems. Basics for wave, tidal and dam based hydro power systems.
- The properties of the powergrid related to stability and availability: Handles the power balance between generation and consumption is studied, emphasizing the functions for voltage and frequency control. Needs for energy storage related to day- and seasonal variations in production and consumption.
- Power converter functionality for connection of renewable energy production and control of the powergrid: Principles for connection of energy storage or supply of isolated loads are presented.
Preliminary lectures:
| Lecture | Content |
|---|---|
| Le 1 Introduction, PV-theory |
Solar radiation, PV-cell, PVtechnology |
| Le 2 PV grid connection |
PV-string configuration, shading MPPT, Load conditions |
| Le 3 Electric power systems |
Power circuit theory, pu-system, transmission lines |
| Le 4 Power system voltage stability |
Load-flow calculation, maximum power curve, voltage collapse, FACTS |
| Le 5 Wind-turbines |
Wind properties, CP-curve, power regulation |
| Le 6 WT grid connection |
Induction machine, Variable speed, Type 1-4 WTG, Grid codes |
| Le 7 Converter control |
|
| Le 8 Transient stability, frequency control |
|
| Le 9 Battery systems |
Labs
The course includes three labs that are a combination of hardware and simulations.
Contact
Examiner and lecturer: Christofer Sundström, (christofer.sundstrom@liu.se or phone 013-281315)