A corrective security-constrained optimal power flow method for AC/DC hybrid systems based on MMC-HVDC
- Resource Type
- Conference
- Authors
- Lin, Yi; Tang, Yu-chen; Qiu, Liu-qing; Zhang, Ming-ye; Ju, Yu-tao
- Source
- 2017 IEEE Conference on Energy Internet and Energy System Integration (EI2) Energy Internet and Energy System Integration (EI2), 2017 IEEE Conference on. :1-7 Nov, 2017
- Subject
- Power, Energy and Industry Applications
Security
Steady-state
Mathematical model
Load flow
Generators
Voltage control
Modular Multilevel Converter
HVDC
optimal power flow
interior point method
N-1 static security constraints
corrective control
- Language
This paper presents an optimal power flow (OPF) model for AC/DC meshed networks with Modular Multilevel Converter based High Voltage Direct Current (MMC-HVDC) system. The OPF problem is formulated to minimize the total network loss of the whole AC/DC grids by adjusting generators and modular multilevel converters considering N-1 constraints and post-contingency corrective control. A practical method is proposed to handle N-1 static security constraints and corrective control with OPF more effectively. Simulations are conducted on IEEE 39-bus testing system and a practical power grid. The results demonstrate the effectiveness of the approach.