Title :
The Study of Nonlinear DC Power Modulation Control in Multi-infeed HVDC Power Systems
Author :
Zhu, Lin ; Xu, Min ; Cai, Zexiang ; Zhu, Haojun ; Lan, Zhou ; Ni, Yixin
Author_Institution :
Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China
Abstract :
A novel nonlinear DC power modulation control is proposed for multi-infeed HVDC in this paper. The idea is that the inter-area oscillations can be damped out by multi-infeed HVDC systems with COIs signals which means individual areas are driven to the stable equilibrium point. A three-area AC/DC power system is used as a sample to show the model derivation in COI coordinates. The back-stepping method is then applied to work out the nonlinear robust adaptive control law for DC power modulation in order to damp low frequency oscillations. Computer simulation results show that the proposed controller is superior to conventional DC power modulation controllers and can damp inter-area oscillations very well.
Keywords :
HVDC power transmission; adaptive control; nonlinear control systems; power transmission control; robust control; backstepping method; computer simulation; interarea oscillation damping; interarea oscillations; multiinfeed HVDC power systems; nonlinear DC power modulation control; nonlinear robust adaptive control law; three-area AC-DC power system; Adaptive control; Control systems; Frequency; HVDC transmission; Nonlinear control systems; Power system control; Power system modeling; Power system simulation; Power systems; Robust control;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448130
