DSP implementation of fuzzy logic-based voltage stabilization control | ||||
| ERJ. Engineering Research Journal | ||||
| Article 10, Volume 25, Issue 3, July 2002, Page 233-248 PDF (796.58 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2002.70917 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| E. E. EL-Kholy; A. EL-Sabbe; S. S. Shokralla; Nancy A. EL-Hefnawy | ||||
| Electrical Engineering Departement,Faculty of Engineering, Menouflya University Shebin El-Kom, Egypt. | ||||
| Abstract | ||||
| This paper presents a simplified control model for stabilizing a load voltage using a switched reactor in parallel with a fixed capacitor of static VAR compensator. Two IGBT's are used to control the reactance of the switched reactor. A uniform pulse width modulation (UPWM) is used for controlling the two switches. The load is static and/ or dynamic, and the supply impedance is taken into account. The system parameters are selected according to the load. This compensator has a simple control circuit and structure. The load voltage and power factor are improved. Also, the supply input waveforms are found to be nearly sinusoidal. A complete modeling and numerical simulation for the proposed systems are presented. A high speed Digital Signal Processor is used for implementing proportionalintegral (PI) and fuzzy load voltage controllers. The system behavior is obtained under both transient and steady-state conditions. The steady-state waveforms are analyzed into their harmonic contents. Experimental results indicate the superiority of fuzzy logic control over the conventional proportional-integral control methods. Simulation results are reported and proved to be in good agreement with the relevant experimental results. | ||||
| Keywords | ||||
| Fuzzy logic control; VAR compensation; Load voltage stabilization | ||||
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