Nonlinear Fault Ride-Through of Grid Forming Converters with Power Synchronization Control
Conference poster, 2024
Grid-forming (GFM) converters, recognized as a key mechanism for providing frequency and voltage support to weak power grids, confront a significant challenge in maintaining stability during severe voltage dips and providing fault ridethrough (FRT) capability. To tackle this challenge, this study first uncovers why GFM converters lose their synchronization during the current limit operation mode subjected to grid-side voltage dips. Then, a nonlinear analytical control law for power synchronization control (PSC) based GFM power converters to enhance their FRT capability during grid side severe voltage dips is provided. The effectiveness of the proposed methods is shown through time-domain EMT simulation results, and it is investigated for grids with different short circuit ratios (SCRs).
Fault ride-through grid-forming power converters weak grids nonlinear control
Author
Yousef Khayat
Chalmers, Electrical Engineering, Electric Power Engineering
Peiyuan Chen
Chalmers, Electrical Engineering, Electric Power Engineering
Massimo Bongiorno
Chalmers, Electrical Engineering, Electric Power Engineering
POWER ELECTRONICS AND DRIVES: SYSTEMS AND TECHNOLOGIES CONFERENCE PEDSTC Year:2024 | Issue:15
Tehran, Iran,
Tehran, Iran,
Fault-Ride-Through of Wind Power Plant with Grid-Forming Control
Swedish Energy Agency (52651-1), 2021-12-15 -- 2024-12-31.
Areas of Advance
Energy
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
Control Engineering
Other Electrical Engineering, Electronic Engineering, Information Engineering