Journal ArticleDOI
Dual $P$ - $Q$ Theory Based Energy-Optimized Dynamic Voltage Restorer for Power Quality Improvement in a Distribution System
Manik Pradhan,Mahesh K. Mishra +1 more
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TLDR
The proposed algorithm adapts energy-optimized series voltage compensation, which results in a reduction of energy storage requirement and model-based computer simulation studies and real-time experimental results validate the effectiveness of the proposed control algorithm.Abstract:
This paper deals with the protection of critical loads from voltage-related power quality issues using a dynamic voltage restorer (DVR). A generalized control algorithm based on instantaneous space phasor and dual $P$ - $Q$ theory has been proposed to generate the instantaneous reference voltages to compensate the load voltages with direct power flow control. The proposed algorithm adapts energy-optimized series voltage compensation, which results in a reduction of energy storage requirement. The proposed DVR control scheme can support the load from voltage-related power quality issues irrespective of the load current profile. Each leg of the three-phase three-leg split capacitor inverter is used to inject series compensation voltage in respective phases of the system. Model-based computer simulation studies and real-time experimental results validate the effectiveness of the proposed control algorithm.read more
Citations
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Journal ArticleDOI
An improved approach for robust control of dynamic voltage restorer and power quality enhancement using grasshopper optimization algorithm.
Ahmed I. Omar,Shady H. E. Abdel Aleem,Essam El-Din Abou El-Zahab,Mostafa Algablawy,Ziad M. Ali +4 more
TL;DR: The scheme proposed utilizes an error-driven proportional-integral-derivative (PID) controller to guarantee better power quality performance in terms of voltage enhancement and stabilization of the buses, energy efficient utilization, and harmonic distortion reduction in a distribution network.
Journal ArticleDOI
A Novel DROGI-Based Detection Scheme for Power Quality Improvement Using Four-Leg Converter Under Unbalanced Loads
TL;DR: A novel control algorithm using double reduced-order generalized integrators for a four-leg shunt converter with fast dynamic response, robust performance, and flexible controllability is presented.
Journal ArticleDOI
An Experimental Investigation on solar PV fed modular STATCOM in WECS using Intelligent controller
Journal ArticleDOI
Super Twisting Sliding-Mode Control of DVR With Frequency-Adaptive Brockett Oscillator
TL;DR: The obtained results show that the ST-SMC has good dynamic performance and can maintain the load voltage at a desired level under voltage sag, swell, and harmonically distorted grid voltages.
Journal ArticleDOI
Adaptive fuzzy controlled hybrid shunt active power filter for power quality enhancement
TL;DR: A novel switching pulse generation methodology based on adaptive fuzzy hysteresis current controlled hybrid shunt active power filter (A-F-HCC-HSAPF) is presented in this paper for compensating reactive power and harmonics in distribution network.
References
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Journal ArticleDOI
Instantaneous Reactive Power Compensators Comprising Switching Devices without Energy Storage Components
TL;DR: In this paper, a new instantaneous reactive power compensator comprising switching devices is proposed, which requires practically no energy storage components, and is based on the instantaneous value concept for arbitrary voltage and current waveforms.
Journal ArticleDOI
Compensation of distribution system voltage using DVR
Arindam Ghosh,Gerard Ledwich +1 more
TL;DR: In this paper, a dynamic voltage restorer (DVR) is demonstrated to tightly regulate the voltage at the load terminal against imbalance or harmonic in the source side, and the behavior of the device is studied through steady-state analysis, and limits to achievable performance are found.
Journal ArticleDOI
Voltage sag compensation with energy optimized dynamic voltage restorer
TL;DR: In this paper, a phase advance compensation (PAC) strategy for the DVR is proposed in order to enhance the voltage restoration property of the device, which requires only an optimum amount of energy injection from the DVM to correct a given voltage sag.
Journal ArticleDOI
An Enhanced Voltage Sag Compensation Scheme for Dynamic Voltage Restorer
TL;DR: An enhanced sag compensation strategy is proposed, which mitigates the phase jump in the load voltage while improving the overall sag compensation time and significantly increases the DVR sag support time compared with the existing phase jump compensation methods.
Journal ArticleDOI
Optimized Control Strategy for a Medium-Voltage DVR—Theoretical Investigations and Experimental Results
TL;DR: In this paper, an optimized control strategy is presented to reduce the needed injection voltage of the DVR and concurrently to mitigate the transient distortions at the load side, which can reduce the power consumption and improve the utilization of the storage system.