Facilities

Electronic Power Grid - AAU Energy research group

Facilities

ELECTRONIC POWER GRID LABORATORY

The Electronic Power Grid Laboratory mission is accelerating the deployment of sustainable power electronics-based power systems, which is in line with the Research Programme on Electronic Power Grid (eGrid) of the Department of Energy Technology at Aalborg University. The laboratory is equipped with the latest hardware, real-time data measurement and control platforms in order to investigate power quality, harmonics and instability issues in current and future power grids. The available single-phase and three-phase multi-converter based architectures enable the implementation of state-of-the-art and innovative solutions to control and mitigate harmonics instability and power quality problems. The Power Electronics Power Distribution Laboratory is designed to tackle real-world grid and power electronics challenges in close partnership with industry and research institutes at national and international levels.

The laboratory is equipped with the latest instrumentation and power converter setups including:

  • Grid Simulator (45 kVA, bi-directional, three-phase/single-phase operation, simulating different grid-faults, generating harmonics and inter-harmonics)
  • Multi-converter architecture with back-to-back PWM converter topology (each converter is rated at 5kW – 15kW)
  • Motor drive systems with different line-commutated and active rectifier technologies (up to 7.5 kW)
  • Voltage source and current source power converters
  • Electronics load (three-phase/single-phase operation, ability to simulate different harmonic current and loading conditions)
  • Multiple DC power supply (bidirectional, unidirectional, up to 600 V and 15 kW)

 

FEATURES & SERVICES

The Power Electronics Power Distribution Laboratory provides research and development platform in order to investigate and develop new solutions for industry. This includes:

  • Validation and development of different control strategies
  • Analysis and improvement of power converter stability and power quality
  • Evaluation of power electronics systems performance under harsh conditions (e.g., grid faults and loading profiles)
  • Verification and adaptation of new power converter concepts with current state-of-the-art power electronics systems
  • Development of flexible control platforms
  • Design and optimization of application-oriented passive and active filtering solutions

Our research scientists have long-standing collaboration with many Danish and international companies and research institutes such as Huawei, Dong Energy, Danfoss, ABB, ENERCON, TenneT, DNV-GL, GEIRI-Europe, State Grid Corporation of China.

LOCATION

Pontoppidanstræde 105, Room 3.104, 9220, Aalborg East

 

POWER ELECTRONICS SYSTEMS LABORATORY

The power electronics system laboratory is used for testing prototypes from small power electronic converters up to large scale medium voltage complex systems. The laboratory provides the possibility of working at high voltage (up to 15 kV) and high power. It contains four 2.5×3.5m test cages with protection circuits. Each cage has two 16A and one 32A three-phase connection. Water cooling is accessible in all of the cages. 125A 400V connection and high capacity water cooling system is available in one of the cages. Cages can be coupled together if a bigger work area is necessary.

 

LOCATION

Pontoppidanstraede 107, room 2.117, 9220, Aalborg East

 

POWER ELECTRONICS PACKAGING

The power module packaging laboratory enables fast prototyping of novel power module layouts and the exploration of physical mechanisms and processes involved in power module packaging as well as embedding of relevant probes into the design. Medium voltage power module prototypes utilizing 10kV SIC MOSFETSas well as custom test samples were already demonstrated in the lab.  Continuous process optimization is being pursued and efforts will be extended in the future to implement emerging packaging materials and processes.

FEATURES & SERVICES

The laboratory facilities are established with the aim of "solid prototyping" and entire prototypes or subprocesses can be tried, optimized and tested. In collaborative projects with business partners, new power module prototypes are developed, manufactured and verified based on new SiC and GaN (wide band gap) power components as well as conventional components. Ongoing activities include manufacturing and testing of power modules based on new SiC high-voltage components.

Highlights of in-house processing facilities:

  • Photolithography and etching of power substrates such as DBC (direct bonded copper)
  • High reliability soldering using state of the art multi-vacuum vapour phase reflow system
  • Semiautomatic wire bonding
  •  High-quality power terminal attachment using ultrasonic welding
  • Non-destructive testing using scanning acoustic microscope
  • Optical microscope inspection and material sample preparation for microscopy
  • Clean process control utilizing clean workstation, wet benches and plasma cleaning

LOCATION

Pontoppidanstraede 107, room 1.123, 9220, Aalborg East