원문정보
초록
영어
This paper presents the system modeling and control design for the load voltage regulation using distribution static compensators (D-STATCOMs). The decoupling control based on the dq reference frame with the symmetrical optimum method is applied to design the D-STATCOM current and DC voltage controllers. The modeling strategy similar to that used for the field-oriented control of three-phase AC machines is employed to model the distribution system integrating with the D-STATCOM and its control circuit. This derived model is used for the load voltage controller design based on the linearized technique, called classical loop shaping method. A simplified 11-kV, 2-bus test power system is employed for simulation. Satisfactory results obtained by simulating the proposed model are compared with those obtained by the switching control of D-STATCOM power circuit created in MATLAB’s Power System Blockset. As a result, the effectiveness of proposed model is verified. This design gave satisfactory responses to guarantee at least 3 dB of the gain margin and 40 of the phase margin.
목차
1. Introduction
2. Modeling of Power Distribution Systems
2.1. Modeling with an Inductive RL Load
2.2. Choice of the Reference Frame
3. D-STATCOM Modeling and Control
3.1. D-STATCOM Modeling
3.2. D-STATCOM Modeling
3.3. DC Voltage Control (DC Link Voltage Control)
4. Load Voltage Control using the Loop Shaping Method
4.1. Linear Controller Design using the Loop Shaping Method
5. Simulation Results and Discussion
6. Conclusion
Acknowledgements
References