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In order to generate electricity from solar PV modules, this study proposed a novel high-voltage gain step-up (HVGSU) DC–DC converter for solar photovoltaic system operation with a maximum power point (MPP) tracker. The PV array can supply power to the load via a DC–DC converter, increasing the output voltage. Due to the stochastic nature of solar...
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Context 1
... 150 W output power is used to determine the load resistance. The solar PV module specifications are shown in Table 2. Figure 9 shows the simulated waveforms for the solar PV voltage (V pv ) and output voltage (V o ) for the proposed HVGSU converter. ...Context 2
... the solar PV voltage (Vpv) is and the duty cycle is controlled to 0.35 in order to achieve a DC microgrid voltage Vo V (as shown in Figure 1), the duty cycle is smaller, which will reduce switching losses make the converter more efficient and catch the MPP. This study proposes a novel 150 W HVGSU DC-DC converter to fulfill the maxim power requirements of solar PV modules with a maximum output of 150 W (as show Table 2). The input voltage for this simulation is set to 20 V, 25 V, 30 V, 35 V, and because the output efficiency of the solar PV module will vary substantially, depen on the climate in the actual work environment. ...Context 3
... this section, the HVGSU converter based on the proposed model is develo presented, and investigated at the Power & Energy Research Lab, National Taiwan versity of Science and Technology (Taiwan Tech). Figure 14 shows the structural b This study proposes a novel 150 W HVGSU DC-DC converter to fulfill the maximum power requirements of solar PV modules with a maximum output of 150 W (as shown in Table 2). The input voltage for this simulation is set to 20 V, 25 V, 30 V, 35 V, and 40 V, because the output efficiency of the solar PV module will vary substantially, depending on the climate in the actual work environment. ...Context 4
... test setup is depicted in Figure 15. Table 3 lists the specifications of the hardware components in tabular format, and Table 2 gives the specifications of the solar PV simulator; in this case, the solar irradiance G = 1000 W 2 /m and temperature T is 25 • C. The duty ratio was computed for the specific output voltage rating (V o Ideal = 380 V as Equation (24)), and the PWM signal was generated by the microcontroller unit (MCU) F28004xC2000. The DC electronic load selects a continuous current mode for the load. ...Context 6
... test conditions include V pv of 20 V, 25 V, 30 V, and 35 V; the V o result is 380 V in all cases, as in Equation (24). Figure 20 shows the real test of the solar photovoltaic module connected to the proposed HVGSU converter and built with the hill climbing (HC) algorithm. When the HC algorithm is used, the MPP duty cycle is 0.35 and the V pv is 40 V, which is the same as the V mp in Table 2. The output voltage V o is 380 V, based on Equation (24), to generate a DC microgrid voltage of 380 V (as shown in Figure 1). ...Context 7
... test conditions include Vpv of 20 V, 25 V, 30 V, and 35 V; the Vo result is 380 V in all cases, as in Equation (24). Figure 20 shows the real test of the solar photovoltaic module connected to the proposed HVGSU converter and built with the hill climbing (HC) algorithm. When the HC algorithm is used, the MPP duty cycle is 0.35 and the Vpv is 40 V, which is the same as the Vmp in Table 2. The output voltage Vo is 380 V, based on Equation (24), to generate a DC microgrid voltage of 380 V (as shown in Figure 1). ...Similar publications
Solar power is an excellent alternative to existing power sources. A stand-alone PV system highlights the necessity of solar energy, where PV panels act as a source to the connected loads. The intermittent nature of solar insolation necessitates a storage system or a battery to store the energy. A DC-DC converter is required to operate the PV panel...
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This paper presents a comprehensive investigation into the various topologies of DC-DC boost converters which are designed for optimal integration with RES like photovoltaic (PV) systems. Photovoltaic applications demand efficient energy harvesting and management to maximize the conversion of solar energy into electrical power. The DC-DC topologies...
In this article, a multi-port non-isolated converter is implemented for renewable energy applications. High voltage gain is accomplished with a switched capacitor and coupled inductor, and power transfer between the inputs, battery, and load can be realized using three power switches. The power collected in the leakage inductance is reused to decre...
This paper utilised a solid‐state transformer (SST) with an active clamped L‐L type current fed front‐end converter for maximum power extraction (MPE) and voltage boost operation. The proposed system employed perturb and observe (P&O) based MPE and upheld the ZVS operation of all primary side switches and ZCS operation of all secondary side rectifi...
This article presents a comparative study of two topologies of three-phase photovoltaic inverters connected to the grid, between the usual two-level inverter and three-level NPC (Neutral Point Clamped) inverter. Inverter control and the boost converter MPPT controller are based on the SRF-dq method and the INC algorithm respectively. The comparison...
Citations
... Therefore, the required output of the DC-DC converter in solar systems involves not only maintaining the voltage output, but also maintaining the output voltage at the maximum power point. On the other hand, the output of the DC-AC converter must be synchronized with the voltage of the grid [9,10]. Modern solar systems usually consist of multiple solar arrays, and each array has a number of solar panels connected in series and parallel. ...
... The present study presents a basic HVGSU converter that incorporates a voltage multiplier unit with a switching capacitor and a main boost converter device. The architecture can be combined and integrated to enable high voltage step-up and monitor power signals so that the control network can change voltages from 20-40 V to 380 V at 150 W [9]. ...
... They are especially well-liked in renewable energy systems and industry. Numerous voltages boosting strategies are described in the literature to address these factors and the growing demand for high step-up converters for various power applications [1]. ...
Step-up DC-DC converters are employed to raise the output voltage level from the input voltage level. Although the basic boost dc-dc converter has advantages like simplicity of implementation, it also has drawbacks like low boost ability and low power density. The literature has reported various topologies which have switched inductor/voltage lift, switched capacitor, voltage multiplier, magnetic coupling, and multistage types. Each converter topology possesses its own advantages and disadvantages with a focus on power density, cost, efficiency, reliability, and complexity depending upon the applications. Demands of such applications are being fulfilled by using new power conversion topologies. Various combinations of such boosting topologies with additional components are complex. This paper provides a simple glance to the basic law and context for the development of future DC/DC converters. This paper has surveyed and classified various topologies according to the voltage-boosting topology and characteristics. The banes and boons of these topologies are also discussed in the paper with the applications of each boosting topology.
... The main motive behind the implementation of an electric barrier is to protect the sensitive loads interfaced to the converter. However, with the absence of the electric barrier from its structure, the Non-isolated DC-DC converters achieve enhanced efficiency along with reduced cost and size [8][9][10]. ...
DC-DC converters, which are an integral part of modern electric power systems, have a quintessential role as power regulators that enhance the functioning of microgrids, PV systems and EVs. Hence, this work proposes an interleaved DC-DC converter design along with a robust MPPT technique to increase power quantity harvested from PV systems. The proposed IZCC inherits the continuous input current property from Cuk converter and non-inverted voltage polarity from Zeta converter. Moreover, the proposed IZCC operates with high voltage gain and minimum input current ripples. The converter operation is improved further using Cascaded RBFNN-based MPPT technique. The simulation model of the proposed IZCC and Cascaded RBFNN MPPT is developed in MATLAB and is verified for its accountability under operating conditions variations. Additionally, 1 kW FPGA Spartan 6E controller-based prototype of IZCC is also designed and executed to ascertain the credibility of the proposed approach. On studying the results and comparative analysis, it is noted that the proposed IZCC functions with an outstanding power conversion efficiency of 97.80%.
... Renewable energy sources in DC microgrids, such as PV panels, wind turbines, and bio-electricity, generate electrical power via different principles; however, they generally produce low-voltage buses. High-gain power converters are required to address the low voltage problem and regulate voltage levels [1][2][3][4]. To reach an adequate voltage level, a high duty ratio in the traditional boost converter or cascaded converters is used [5]. ...
Renewable energy sources in DC microgrids require high-performance conversion systems to increase their capacity and reliability. Among other characteristics in conversion systems, the current ripple is a characteristic that must be considered since it affects the performance of PV panels and batteries. In this paper, a high-voltage-gain DC–DC boost converter for performing current ripple elimination that is based on a variable inductor is proposed. The topology is composed of a diode–capacitor voltage multiplier and a modified cascaded boost converter. To achieve voltage regulation, a reduced-order switched model is obtained considering the switched capacitor’s dynamics. To address the inductance variation and external disturbances, the
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∞
control theory is adapted to systematically design a robust proportional–integral (PI) controller. Details of the working principles and the sizing of passive components are presented. The simulation and experimental results demonstrate that the input current ripple of the proposed converter can be removed in both transitory and steady states.
Keywords: DC–DC converters; high voltage gain; zero-ripple input current; variable inductor; H∞ synthesis
The complication of economic load dispatch (ELD) of an electrical power system can be considered as an optimization problem with constraints to minimize the cost and emission concurrently. The optimization problems with various objectives gain significant momentum and priority with the advancements in renewable energy sources (RESs). Many techniques have been put forward to dispense this issue, but it still remains a challenging one. The existing optimization approaches are accompanied by a slow gathering rate with inferior computational complexity. To augment the ELD performance with renewable resources, in this research, the hybrid wind-driven water wave optimization (WDWWO) strategy is presented. The effectiveness of the proposed method is validated by the consideration of the IEEE 30-bus system. The proposed hybrid method is capable of solving convex and non-convex economic and emission dispatch issues. From the simulation results, it can be seen that, in the case of both PV and wind, the cost analysis of the developed WDWWO model effectuate 21% reduction when compared with wind-driven optimization (WDO), 23% reduction when compared with water wave optimization (WWO), 40% reduction when compared with modified shuffle leaf algorithm (MSFLA), and 42% reduction when compared with constrained multi-objective population external optimization technique (COMPEO) under 200 MW.
