Stabilization of Output Voltage with Feedback Circuit and Filter on 2 Stages-Step Up Converter (24V to 312V DC)

This paper introduces a DC-AC inverter design that operates stand alone to deliver power from solar photovoltaic (PV) to the load directly without going through the battery. In batteryless solar PV, the output voltage of solar PV always varies according to solar irradiation, temperature, so that it becomes a challenge in modelling DC-AC inverter with constant output voltage. The design consists of a boost converter, h-bridge switching and driver, and LC filter to generate sinusoidal ac voltage as output to load. To ensure a constant inverter output voltage, the design equipped by a close loop PI controller based on voltage control mode. The design modelled and simulated by PSIM. PV dc input was set variation according to the irradiation value (W/m2) and the output connected to a load that has rated voltage of 220 Vac and 3.4 A of nominal current. The results show that in the irradiation variation 600-1500 W/m2, the inverter was able to maintain the output voltage of 220 Vac ± 0.91%, 50 Hz which is still in the voltage range based on standard. The efficiency produced by DC-AC inverter 97.7 % at 600 W/m2 and 83.6 % at 1500 W/m2.

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“…next to determine the value of the selected inductor and capacitor can use the following equation [16,17]:…”

Section: Dc-dc Boostmentioning

confidence: 99%

Design of constant output voltage DC-AC inverter for batteryless solar PV system

et al. 2020

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“…The controller designed works to maintain the power supply for the application considered [1]. The value of duty cycle has higher importance in power regulation in different controllers and according to that a feedback orient circuit is fabricated to adjust the duty cycle values which generate stability in output voltage at different input conditions [2]. On the other side, an active model is designed to maintain the output voltage in a stable mode [3].…”

Section: Introductionmentioning

confidence: 99%

IC Pattern Based Power Factor Maximization Model for Improved Power Stabilization

Hariharan¹,

Sukhi²,

Kalaiarasi³

2023

Intelligent Automation &Amp; Soft Computing

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The voltage fluctuation in electric circuits has been identified as key issue in different electric systems. As the usage of electricity growing in rapid way, there exist higher fluctuations in power flow. To maintain the flow or stability of power in any electric circuit, there are many circuit models are discussed in literature. However, they suffer to maintain the output voltage and not capable of maintaining power stability. To improve the performance in power stabilization, an efficient IC pattern based power factor maximization model (ICPFMM) in this article. The model is focused on improving the power stability with the use of IC (Inductor and Conductor) towards identifying most efficient circuit for the current duty cycle according to the input voltage, voltage in capacitor and output voltage required. The model with boost converter diverts the incoming voltage through number of conductors and inductors. By triggering specific inductor, a specific capacitor gets charged and a particular circuit gets on. The model maintains number of IC (Inductor and Conductor) patterns through which the power flow occurs. According to that, the pattern available, the mofset controls the level of power to be regulated through any circuit. From the pattern, the model computes the Circuits Switching Loss and Circuits Conduction Loss for various circuits. According to the input voltage, the model estimates Circuit Power Stabilization Support (CPSS) according to the voltage available in any capacitor and input voltage. Using the value of CPSS, the model trigger optimal number of circuits to maintain voltage stability. In this approach, more than one circuit has been triggered to maintain output voltage and to get charged. The proposed model not only maintains power stability but also reduces the wastage in voltage which is not utilized. The proposed model improves the performance in voltage stability with less switching loss.

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Modelling and Simulation of Closed Loop Buck Converter to Supply Constant DC Load for Single Solar PV Panel

Lusijarto

Risdiyanto

Rachman

et al. 2018

2018 International Conference on Sustainable Energy Engineering and Application (ICSEEA)

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Stabilization of Output Voltage with Feedback Circuit and Filter on 2 Stages-Step Up Converter (24V to 312V DC)

Cited by 3 publications

References 5 publications

Design of constant output voltage DC-AC inverter for batteryless solar PV system

Design of constant output voltage DC-AC inverter for batteryless solar PV system

IC Pattern Based Power Factor Maximization Model for Improved Power Stabilization

Modelling and Simulation of Closed Loop Buck Converter to Supply Constant DC Load for Single Solar PV Panel

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