System Planning Flashcards
Dimensions of system planning – Potential for decomposition
Definition and Application Cases for Target Grid Planning
Overview of the Target Planning Process
Target Grid Planning - Radial Grids
Target Grid Planning - Ring Grids
Meshed grid planning with genetic algorithm
Application Cases for Expansion Planning
Conventional measures for transformer stations
Expansion planning
Conventional measures for lines
Expansion planning
Grid splitting & Topological and operational measures
Expansion Planning - Conventional measures
Innovative measures
Exansion Planning
DC System behaviour
DC System configuration
Exemplary DC pole configurations for medium voltage (AC) cables
Name advantages and disadvantages of heuristic methods for target grid planning
Advantages
- Detailed modelling
- Faster runtimes
Disadvantages
- No guarantee for solution quality
Which graph-theoretic analog can help planning ring grid structures?
The Capacitated Vehicle Routing Problem (CVRP) can be seen as graph-theoretic
analog
Formulate the optimization problem for the Capacitated Vehicle Routing Problem
(CVRP). What do the decision variables 𝑥𝑖𝑗𝑘 mean? Include the objective function
and describe the constraints in a few words.
Name at least four conventional and two innovative expansion measures for distribution grids.
Conventional:
- Exchange or capacity increase of transformer stations
- Parallel reinforcement of transformer stations
- Exchange of power lines
- Parallel reinforcement of power lines incl. feeder splitting
- Addition of outgoing feeders or rings
- Grid splitting
- Topological measures
Innovative:
- On-load tap changers in transformer substations
- Line voltage regulator (LVR)
- Reactive power compensation
- Storages
- Grid user flexibility
1.2 Which of these statements are true?
a. Due to the skin effect, DC power transmission has much higher losses than AC power
transmission.
b. Due to their high inertia, the frequency control in DC distribution systems can be
much slower.
c. Today, most electricity distribution systems are not actively controlled
False
False
True
Solve Exercise 1.3 on Exercise 2
Solution in Moodle
Task 3.2 on Exercise 2
