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Unified power quality conditioner (UPQC) consists of combined shunt and series active power filters which acts both on the source side and on the load side for improving the power quality. The paper presents a simple method for controlling the series filter under unbalanced and distorted load conditions. The proposed control method is based on a three phase locked loop (PLL). For giving a complete...
Unified power quality conditioner (UPQC) consists of combined shunt and series active power filters for improving both the power quality on the source side and on the load side. The paper presents a simple method for controlling the series filter under unbalanced and distorted load conditions by using a three phase locked loop (PLL). Two methods for controlling the shunt filter are analyzed. The model...
In this article we'll tackle the control of multi-motors electric drives with high dynamic, with rapid changes in torque and speed, with flexible coupling of motors, where the control strategy is FOC (Field Oriented Control) for each drives and the distributed control in local network using the CanOpen protocol. In the surface mining industry, from which the electric drive application for this article...
In this article we'll tackle the control of multi-motors electric drives with high dynamic, with rapid changes in torque and speed, with rigid coupling of motors, where the control strategy is FOC (Field Oriented Control) for each drives and the distributed control in local network using the CanOpen protocol. In the surface mining industry, from which the electric drive application for this article...
The analysis of disturbances transmission is a complex process that supposes the study of disturbances' sources, propagation and magnitude. The paper presents the results obtained within a research that aimed to assess the condition of low-voltage microgrids, relating to power quality, principally harmonic distortion and imbalance. For this goal, a careful investigation of the disturbances' sources...
In this article we'll tackle the control of electric drive with high dynamic, with rapid changes in torque and speed, where the control strategy is FOC (Filed Oriented Control). Such cases were dealt with where speed is measured directly with an encoder, compared with the case of sensorless control, where speed is estimated using a Model References Adaptive Control Estimator. Simulations were carried...
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