Abstract
Parallel hybrid modular multilevel converter (PH-MMC) is one of the potential converter topologies for highvoltage direct-current (HVDC) transmission systems. Due to the circuit topology of a PHMMC, the dc-bus voltage contains low-order harmonics and cannot be fully regulated at a constant dc voltage. This paper proposes a zero-sequence voltage injection (ZSVI)-based model predictive control (MPC) strategy to control the dc current/power flow and simultaneously minimize the dc-current ripple. The proposed strategy takes the advantage of a cost function minimization technique to determine and inject the optimal zero-sequence voltage components into the dc-bus voltage of a PHMMC system. Performance of the proposed strategy for a 21-level PHMMC-based HVDC station system is evaluated in the PSCAD/EMTDC software environment. The reported results demonstrate the proposed ZSVI-MPC strategy can regulate the dc current while reducing its ripple.
| Original language | English (US) |
|---|---|
| Title of host publication | IEEE Power and Energy Society General Meeting |
| Publisher | IEEE Computer Society |
| Volume | 2014-October |
| Edition | October |
| DOIs | |
| State | Published - Oct 29 2014 |
| Externally published | Yes |
| Event | 2014 IEEE Power and Energy Society General Meeting - National Harbor, United States Duration: Jul 27 2014 → Jul 31 2014 |
Other
| Other | 2014 IEEE Power and Energy Society General Meeting |
|---|---|
| Country | United States |
| City | National Harbor |
| Period | 7/27/14 → 7/31/14 |
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Nuclear Energy and Engineering
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering