This paper proposes a fuzzy logic based new control scheme for the Unified Power Quality Conditioner (UPQC) for minimizing the voltage sag and total harmonic distortion in the distribution system consequently to improve the power quality. UPQC is a recent power electronic module which guarantees better power quality mitigation as it has both series-active and shunt-active power filters (APFs). ...

Differential evolution DE algorithm is used to determine optimal location of unified power quality conditioner UPQC considering its size in the radial distribution systems. The problem is formulated to find the optimum location of UPQC based on an objective function OF defined for improving of voltage and current profiles, reducing power loss and minimizing the investment costs considering the ...

This paper proposes a neuron adaptive harmonic detection algorithm which can adaptively,rapidly and precisely calculate the voltage and current reference signals in presence of the system frequency variation, according to which, a Double Integration Control (DIC) strategy is applied in Unified Power Quality Conditioner (UPQC) as an interface between the hybrid power system and the load.Generall...

Aiming at the micro-grid deteriorating the distributed network power quality for its features like voltage fluctuation and intermittent, unified power quality conditioner (UPQC) is the most effective device for power quality treatment. The voltage sag detection of UPQC based on PI with RBF (Radial Basis Function) neural network controller is put forward in the paper. The UPQC topology which inc...

Unified power quality conditioner is one of the advanced forms of power conditioning device, which is a combination of back to back connected series APF and shunt active power filter (SAPF) connected to a common DC link voltage. This topology will facilitates this device to have a reduced dc-link voltage without reducing its compensation capability. This device is mainly used in improving the p...

Wind energy conversion systems are now occupying important space in the research of renewable energy sources with microgrid. The main challenge in wind power generation is power quality problem and their connection with the distribution network in microgrid. The main factor behind poor power quality is the impact of harmonics in current and voltage in power network. In microgrid the converter a...

Abstract— This paper presents Neuro-Fuzzy logic based Power Conditioner for elimination of current harmonic. In it neuro-fuzzy based technique is used for generating compensating current to eliminate/reduce the harmonics content which is generated by the system. The modelling of Fuzzy rule base on Neural Network is also mention in this paper. FFT analysis also has been done for the calculation ...