Abstract
Modular multilevel converter (MMC) based HVDC system for renewable energy integration has attracted the researcher's interest nowadays. This paper proposes a control strategy forMMC based multiterminal HVDC system for grid integration of squirrel cage induction generator (SCIG) based wind energy systems. Unlike the averagemodel, thisworkmodels theMMC using the aggregatemodel and develops multiterminal HVDC transmission network inMATLAB/Simulink. It further develops theMMC multiterminal HVDC transmission network in real time digital simulator (RTDS). Instead of simplified current source, the proposed network considers the complete dynamics of SCIG based wind source from generation to integration. It employs field-oriented control for optimum wind energy tracking and forms isolated AC grids using feed forward controller. The proposed MMC controller performance has been tested under severe balanced and unbalanced disturbances. The results from aggregate model based MMC network in MATLAB/Simulink and those of the experimental MMC network in RTDS are in full agreement. The results confirm optimum wind energy tracking, fulfill grid code requirements, and improve low voltage ride through capability.
| Original language | English |
|---|---|
| Article number | 3622 |
| Journal | Sustainability |
| Volume | 12 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 May 2020 |
Bibliographical note
Publisher Copyright:© 2020 by the authors.
Keywords
- Balanced fault
- Field-oriented control
- MMC aggregate model
- MMC detailed model
- Multiterminal HVDC
- SCIG
- Unbalanced fault
ASJC Scopus subject areas
- Computer Science (miscellaneous)
- Geography, Planning and Development
- Renewable Energy, Sustainability and the Environment
- Environmental Science (miscellaneous)
- Energy Engineering and Power Technology
- Hardware and Architecture
- Computer Networks and Communications
- Management, Monitoring, Policy and Law
