Steady-state voltage-control method considering large-scale wind-power transmission using half-wavelength transmission lines
Abstrak
Half-wavelength transmission can transmit large-scale renewable energy over very long distances. This paper proposes an improved steady-state voltage-control method for half-wavelength transmission systems considering large- scale wind-power transmission. First, the unique voltage characteristics of half-wavelength lines are deduced based on the distributed parameter model. In the secondary voltage-control level, reactive power-transmission limits of half-wavelength lines are introduced as another control objective except for tracing the pilot bus voltage reference. Considering the uncertainty and fluctuation of wind power, the overvoltage risk-assessment method of half-wavelength lines is presented to determine specific voltage-control strategies. Simulation results demonstrate that the proposed voltage-control method delivers superior tracking performance according to a voltage reference value and prevents the overvoltage risk of half- wavelength lines effectively in different wind-power penetrations.
Topik & Kata Kunci
Penulis (6)
Hao Tian
Hongzheng Liu
Huan Ma
Pengfei Zhang
Xiaohui Qin
Changhui Ma
Akses Cepat
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- 2021
- Sumber Database
- DOAJ
- DOI
- 10.1016/j.gloei.2021.07.009
- Akses
- Open Access ✓