A simulation analysis of PV powered Inc-Cond MPPT based hybrid filter for power quality improvement

This paper proposed a Transformer less Hybrid Active Filter that upgrade the power quality in single-stage frameworks with steady renewable Photo Voltaic. It strengthens basic loads and carrying on as high-consonant impedance that does not below the critical loads. Manages energy management and power quality issues identified with electric transportation and concentrate on enhancing the electric vehicle load connected to grid. The control technique was intended to anticipation of current harmonic distortions with the nonlinear loads to control the flow of utility with no standard massive and expensive transformer. Power factor alongside AC side will likewise kept up to some esteem and furthermore dispense with the voltage distortions at the Common coupling point.

ABOUT PHYSICS AND MATHEMATICS OF POWER SUPPLIES INDUSTRIAL AND SIMILAR TO THEM POWER CONSUMERS

Based on modern quantum physics, an original approach is proposed to the principle of mod- eling the transmission of electrical energy to industrial and equated consumers with a design power of up to 1000 kVA, which is performed using transformers of the TM-6 (10) / 0.4 kV type, provided that that their secondary voltage is a potential form of the SES electromagnetic energy supplied to such consumers. At the same time, the normal mode of the maximum load of the transformer is considered when its active and reac- tive loads are equal, at which the reactive load factor of the consumer's power supply system has the highest permissible value (the phase angle of the sinusoidal voltage current is zero). A static vector-quantum model of a transformer power transmission has been developed, which simplifies the understanding of the process of compensating for the reactive load of a transformer and makes it possible to refine the operating power of a capacitor bank with 0.4 kV capacitors. At the same time, the idea is confirmed that the value of the reactive load factor of a transformer is not only the main criterion for the electromagnetic compatibility of the SES of a particular electricity consumer, but also a criterion for its economic efficiency. Using the numerical value of such a coefficient, it is possible to determine the value of the economic equivalent of the reactive load of a particular SES.

Design and Realization of a Bidirectional Full Bridge Converter with Improved Modulation Strategies

In this paper a Full-Bridge Converter (FBC) for bidirectional power transfer is presented. The proposed FBC is an isolated DC-DC bidirectional converter, connected to a double voltage source—a voltage bus on one side and a Stack of Super-Capacitors (SOSC) on the other side. The control law aims at the regulation either of the bus current (when the load requires power) or of the SOSC current (when the stack requires a recharge). Analysis and design of the proposed FBC are discussed. A Phase Shift Modulation (PSM) scheme is proposed, along with an improved modulation variant for the efficiency optimization, through a proper reduction of the transformer power losses. The realized prototype, compliant with automotive applications, is presented and experimental results are highlighted. The target power level is 2 kW.