Improved Power Density of a 6 kV, 1 MW Power Electronics Building Block Through Insulation Coordination
- Resource Type
- Conference
- Authors
- Stewart, Joshua; Motwani, Jayesh; Yu, Jianghui; Cvetkovic, Igor; Burgos, Rolando
- Source
- 2022 IEEE 23rd Workshop on Control and Modeling for Power Electronics (COMPEL) Control and Modeling for Power Electronics (COMPEL), 2022 IEEE 23rd Workshop on. :1-7 Jun, 2022
- Subject
- Power, Energy and Industry Applications
Partial discharges
Insulation
Power system measurements
Three-dimensional displays
Density measurement
Wires
High-voltage techniques
corona
electric field control
capacitor daughtercard
insulation assessment
medium voltage bus
MVDC
partial discharge
PCB bus
PEBB
silicon carbide
- Language
In this work, key aspects of the insulation coordination in a 6 kV, 1 MW power electronics building block (PEBB) is presented. Each PEBB can be stacked in various series-parallel configurations as part of a modular multilevel converter sustaining at least 30 kV common mode. Ansys Maxwell 3D and COMSOL Multiphysics were used for electric field analysis to aid in the design of component and system level insulation. Design and analysis of a PCB-based bus with capacitor daughtercards and high voltage considerations for the cooling system are presented. Insulation integrity of key systems were verified to be partial discharge free at their maximum voltage rating.