SVPWM controller for three phase UPS system operating under highly non linear load
نویسندگان
چکیده
The distortion obtained in the Uninterruptible Power Supply (UPS) output due to increasing use of rectifiers in critical loads an effective strategy is needed to control the output of UPS system. Sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) are the most popular PWM techniques for three phase UPS system. As compared to SPWM, SVPWM is much effective in reducing harmonics and distortions caused by highly non linear loads. In this paper space vector based control strategy is presented for three phase UPS system that are operating under highly nonlinear loads. The proposed controller generates gating signals and guarantees high quality output at the load. SIMULINK is used to design and analyse the controller for three phase ups system.
منابع مشابه
Simulation of SPWM Control Method for UPS System
This paper deals with the analysis of implementing Sinusoidal Pulse Width Modulation (SPWM) controlling strategy in three phase Uninterruptible Power Supply (UPS) system operating under highly nonlinear load. The conventional type of controller is not enough to reduce harmonics in the system under highly nonlinear load in high power system. The SPWM based method is applied to the UPS system to ...
متن کاملSimulation of SPWM Control Method for UPS System
This paper deals with the analysis of implementing Sinusoidal Pulse Width Modulation (SPWM) controlling strategy in three phase Uninterruptible Power Supply (UPS) system operating under highly nonlinear load. The conventional type of controller is not enough to reduce harmonics in the system under highly nonlinear load in high power system. The SPWM based method is applied to the UPS system to ...
متن کاملSVPWM Rectifier-Inverter Nine Switch Topology for Three Phase UPS Applications
This paper proposes a novel three phase nine-switch ac/ac converter topology with space vector pulse width modulation techniques for UPS applications. This converter features sinusoidal inputs and outputs, unity power factor and mainly a reduced Number of active switches. The SVPWM operating principle is elaborated. Simulation of three phase ac to ac converter with conventional method is evalua...
متن کاملLoad Current Control Based on Luenberger Observer for Three Phase Power Converter Svpwm
This paper presents Load Current Control based on Luenberger Observer for Three-Phase Power Converter SVPWM with current regulation. The use of observer is intended to replace the use of dc current sensor, so it eliminates the nonlinearity problem and drop voltage caused the sensor. This research develops a controller to improve the time response of the dc output voltage of the three-phase powe...
متن کاملA Novel Delta Modulator and Modified Ramp Type Current Controller-Two Viable Scheme for Current Controlled Voltage Source Inverter
Three-phase pwm voltage source inverters are widely employed in high performance ac drive system, active filters and uninterrupted power supply (UPS) etc.For these applications, the converter should provides good dynamic response. However the performance of the converter system largely depends on the accuracy of the applied current control strategy. The current controllers can be classified as ...
متن کامل