Input switched closed-loop single phase ĈUK AC to DC converter with improved power quality

Abstract

<span lang="EN-US">A new closed loop AC to DC ĈUK converter is presented in this paper. The conventional ĈUK AC to DC converter has no feedback circuit. Thereby, the output voltage of the converter changes while changing the load. The proposed closed loop converter can regulate voltage with the variation of load over a wide range. Moreover, the power factor and Total Harmonic Distortion (THD) of the supply side current found quite satisfactory from this closed loop ĈUK converter. The converter operates in four steps with a different combination of voltage polarities and switching states. The feedback path consists of a voltage control loop and a current control loop. The closed loop ĈUK converter in this study is compared with the open loop version. Additionally, the comparison is made with the conventional converter of the same topology. The effectiveness in terms of power factor and THD of the proposed converter is verified using simulation results.</span>

A review on techniques for improving power quality: research gaps and emerging trends

“…Better PQ [29] Power quality APF Improved power quality [30] Power quality Superposed control strategies Enhanced power quality [31] Power quality uv-pi and pr-r controller Improvement in PQ [32] Power quality icosѲ control algorithm Refined power quality [33] Power quality DSTATCOM along with variable DC link voltage control Improved power quality [34] Power quality PSO assisted kalman filterbased SAPF Enhanced power quality [35] Voltage regulation Power theory hysteresis current control scheme Improved voltage regulation [36] Load growth WIPSO-GSA algorithm Optimal DG installation problem was solved [37] Power quality SAF Harmonics are eliminated [38] Power quality Fuzzy controller Enhanced power quality [39] Power quality Centralized energy management approach Improved power quality [40] Power quality ANFIS-UPQC Enhanced power quality profile [41] Wind farm power quality ANN-controlled hybrid filter Improved power quality [42] Power quality Switched filter compensator Enhanced power quality [43] Power quality PMSM based adjustable speed drive (ASD) load Enhanced power quality [44] Power quality UPQC Enhanced power quality [45] Power quality Adaptive noise reduction control Enhanced power quality [46] Capacitor placement and power quality PSO Optimized capacitor placement and improved power quality [47] Power quality Voltage regulation techniques Improved power quality [48] Power quality Hybrid power filters Improved power quality [49] APF FPSO Improved APF [50] Voltage stability Voltage control technique Enhanced voltage stability and maximized DG utilization [51] THD SEPIC controlled rectifier SEPIC-controlled rectifier is applicable for a wide variety of loads [52] Power quality THD AC to DC ĈUK converter Proposed arrangement regulates the output voltage and maintains a high-power factor [53] Power quality DSTATCOM PQ theory Diode-clamped structure makes the power quality of a multilevel DSTATCOM structure better [54] Power quality Dynamic voltage restorer Gray wolf optimizer Butterfly optimizer…”

A Fuzzy Logic Based Power Management System for a Hybrid Microgrid

“…Additionally, the load characteristics are also changed with the advancement of power electronics. Presently, most of the industrial loads introduce power electronics based rectifiers, inverters and converters which causes harmonics problem, poor voltage regulation etc [19][20][21][22][23]. Thereby, it is essential for the researchers to introduce recent techniques in the field of microgrid system and electrical energy management.…”

Decrystallization with high current pulses technique for capacity restoration of industrial nickel-cadmium battery

“…Therefore, in this study, de-crystallization with technique of high current pulses is chosen as study focus where the injected high current pulses force the electrons at the battery plate move and chemical reaction occurs. To generate high current pulses during de-crystallization, a power converter [25,26] is considered to generate DC pulses as the main power supply from the main grid in AC state.…”