DC grids and DC technology are quickly gaining traction as an important tool in the energy transition to facilitate electrification and simplify the integration of renewables.
The purpose of this master thesis project is to investigate standard requirements for protection against electric shock, thermal effects, and arcing. Simulate short circuit and fault events. Evaluate protection methods and protection devices. A very important part of the project is to build a test setup to measure actual fault currents during short circuits in real-life scenarios. The goal of the project is to be able to propose protective devices and protection methods for Ferroamps products and DC grid installations.
The preliminary scope of the master thesis project is as outlined below but is open for adjustment:
- Investigate standard requirements for protection in DC grid systems
- Investigate and test surge current capability of relevant components such as relays, semiconductors, and capacitors
- Evaluate how the protection characteristics change with varying grid topologies (such as on-grid or off-grid scenarios, any connected batteries, DC grid capacitance, etc)
- Investigate arc detection requirements
- Develop a simulation model for short circuit currents in DC grid systems
- Build a test setup and perform realistic ground fault and short circuit tests while measuring currents and voltages in real products
- Propose protective devices and methods for Ferroamps products and DC grid installations
- Write a master thesis
Please send an application to firstname.lastname@example.org or contact us on +46 709 308 982 to discuss the project.
Ferroamp is developing power electronics and software to integrate new energy resources such as solar cells, batteries, electric vehicle chargers, and selected facility loads in residential and commercial buildings using a local 760 VDC grid (LVDC). Ferroamp has 55 employees and the main office is located in Spånga, Stockholm.