Методи підвищення точності симетрування напруг і струмів в електричних мережах

Abstract

The dissertation is devoted to decision of the scientific task of improving the quality of electric power by reducing the asymmetry of voltages and currents by means of balancing units that realize the obtained control laws. Mathematical models of control systems for compensating-balancing installations for balancing currents and voltages are developed. Moreover, the developed model of the control system of a compensating-balancing installation for voltages balancing has superiority over existing ones due to another formulation of the modeling problem. The developed models can be used in the construction of control devices for compensation systems for balancing voltages and currents. The sensitivity of the obtained mathematical models of the control systems of the balancing units is estimated. Two models of control systems for compensating condenser symmetric installations are proposed, based on the developed mathematical models. The accuracy of the developed mathematical model of the control system of the voltage balancing unit was estimated. It was found that the obtained model of the control system of the voltage balancing unit gives better results than existing models.