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Line Harmonics Reduction in High-Power Systems
Published in L. Ashok Kumar, S. Albert Alexander, Computational Paradigm Techniques for Enhancing Electric Power Quality, 2018
L. Ashok Kumar, S. Albert Alexander
An inverter or power inverter is a device that converts the DC sources to AC sources. Inverters are used in applications such as adjustable-speed AC motor drivers, uninterruptible power supplies (UPS), and AC appliances run from an automobile battery.
Adaptive Control Based on LMS Algorithm for Grid-Connected Inverters
Published in Electric Power Components and Systems, 2023
Goran S. Nikolić, Tatjana R. Nikolić, Goran Lj. Djordjević
The global structure of a conventional power system based on the DC/AC inverter is presented in Figure 1. The power system consists of a pulse-width modulated full bridge DC/AC inverter, a DC source, an LC filter, a PWM generator, and a grid utility (or load). The power inverter acts as an interface circuit that delivers power from the DC source to the energized grid and/or load. This grid-feeding power inverter can be represented as an ideal AC current source connected to the grid [6, 9]. To regulate accurately the active and reactive power exchanged with the grid, this current source should be perfectly synchronized with the grid voltage at the connection point [24]. The LC filter is used to minimize the distortion and improve the quality of voltage and current at the inverter output, and it is usually considered an integral part of the inverter. The LC filter at the inverter output attenuates high-frequency switching ripple current, eliminates the switching harmonics, and reduces the system losses. Note that, the line-frequency transformer along with the DC/AC inverter is generally not used due to its increased cost, size, and weight [25].
Integrated Hybrid Converter Topology with Single DC Input and Simultaneous DC and AC Outputs using SHORFA Technique
Published in International Journal of Electronics, 2021
S. Dinakar raj, Angeline Ezhilarasi
The architecture model of unique DC input as well as at same time of output DC and AC using the established controller is shown at (Figure 1). It combines the PV panel and, along with the model, relates the device of storage battery as well as normal load, rectifier, AC bus, DC bus as well as established SHORFA controller. In architectural design, the power which is generated by the solar panel comes from nature, which is delivered by nature in particular. As illustrated in (Figure 1) the photovoltaic system consists of photovoltaic panel number that is related DC bus to hybrid converter (Amirtharaj et al., 2019; Ray & Mishra, 2014). The hybrid Converter supply DC and AC outputs, respectively. Topologies that provide better gains might be needed to achieve step-up activity, based on the requirements. The sections at models are associated to DC bus line as well as energy capture that photovoltaic panel collects the energy is flow out of load as well as converter of AC-DC (Ray & Mishra, 2014). Likewise, battery is associated with DC bus of methodology to bidirectional converter DC-DC. A power inverter is a power electronic device or transistors, which alter Direct Current (DC) with Alternating Current (AC). Voltage of input, voltage of output and frequency and total power processing depends on the particular device or circuit design (Figure 1) represents the architecture of Hybrid Converter with proposed SHORFA controller. Towards the end of operation, mathematical as well as configuration of photovoltaic panel and the modelling of the hybrid converter also the design of controller are described at next segment.
Optimal power generation and consumption management using photovoltaic and fuel-cell in China
Published in International Journal of Ambient Energy, 2022
The purpose of the power inverter is to transform the DC electricity generated by the batteries and the PV panels to AC power (Lashab et al. 2020). The size of this unit can be assessed regarding the maximum required energy. The input electricity of the inverter () can be estimated as seen in the equation Equation (4). where, describes inverter efficiency and stands for load power.