A Reduced Switch Count Multilevel Inverter for PV Standalone System using Modified JAYA Algorithm

Mohanty, Rupali; Chatterjee, Debasish; Suman, Swati; Anand, Mukul

doi:10.1080/00207217.2022.2164073

Cited by 6 publications

(6 citation statements)

References 20 publications

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“…Low frequency may be incorporated into load flow to examine transient and steady-state stability issues. There are a number of applications of low frequency converters in industries and in railway systems as well [10][11] [ [31][32][33][34][35]. The optimal frequency with load flow in low frequency transmission systems are emphasized in recent research.…”

Section: A Background and Motivationmentioning

confidence: 99%

“…The proposed model incorporates the frequency in two port network modeling of Telegrapher's solution. Telegrapher's method solutions are also implemented when modeling objective functions of optimal load flow solutions [28][29][30][31][32][33][34][35][36][37][38]. The main contributions of this paper can be summarized as follows.…”

Section: Contribution and Findingsmentioning

confidence: 99%

“…The VSCs losses Fc in low frequency system as shown in Fig. 6 is calculated by generalized formula of converter loss which is dependent on injected current shown in (26) [32]. 𝐹 𝑐 = 𝛼 + 𝛽. 𝐼 𝑐 + 𝛾𝐼 𝑐 2 , (26) where 𝛼, 𝛽, and 𝛾 are loss coefficients of VSC connected to LF lines.…”

Section: ) Losses In Convertersmentioning

confidence: 99%

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Loss Minimization and Voltage Stability With Optimum Frequency Determination of LF-HVac Lines Based on Wind-Hydro-Gas Turbine Unit

Anand,

Chatterjee,

Goswami

et al. 2024

IEEE Access

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This study addresses the loss minimization and voltage stability analysis for low-frequency transmission lines connected to wind farms, pumped storage Hydropower (PSH) and Gas Turbine plant. The losses and the voltage stability index connected with renewable energy systems are heavily dependent on the operating frequency and create uncertainties in terms of voltage and frequency. Therefore, optimal frequency selection for LF-HVac lines also become important for the system. The voltage stability has been improved by STATCOM (Static Synchronous Compensator) for given system placed at different buses to maintain stability of system. A simplified two-port equivalent model for transmission lines based on solutions to Telegrapher' method has been proposed for reducing system complexity and losses. The proposed method is tested with different existing algorithms and implemented in IEEE 39-Bus system and for scalability compared with IEEE 57-Bus system. The results obtained in MATLAB environment in Simulation lab which indicate that the proposed LF estimation method with the modified metaheuristic algorithm gives optimal frequency for low-frequency HVac systems.

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Section: A Background and Motivationmentioning

confidence: 99%

Section: Contribution and Findingsmentioning

confidence: 99%

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Loss Minimization and Voltage Stability With Optimum Frequency Determination of LF-HVac Lines Based on Wind-Hydro-Gas Turbine Unit

Anand,

Chatterjee,

Goswami

et al. 2024

IEEE Access

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“…But for grid-connected applications, they must have a dc-link voltage that is equivalent to the input voltage, requiring the system to include a front-end boost converter. This problem has been omitted in [10], [11], [12] by avoiding use of capacitors to generate higher level output voltage with reduced power loss and compact design. Creating switching schemes that produce appropriate triggering angles to achieve the least amount of distortion across the output is a challenge in the development of MLI topologies.…”

Section: Introductionmentioning

confidence: 99%

Modified Asymmetrical H-Bridge MLI With Minimum Switching Loss and Harmonic Distortion Using JAYA Algorithm

Mohanty,

Mohanty

2024

IEEE Access

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This paper proposes a modified structure of reduced switch count H-Bridge Multilevel inverter (MLI) which comes with an advantages of higher voltage level, lower switching loss and lower number of components. This developed topology of MLI can generate 15-level output voltage with only three number of DC voltage sources and ten power devices. In order to generate the higher voltage level in analogy to the conventional Multilevel inverter asymmetrical input voltage sources are used which reduced the number of power devices input voltage sources and driver circuits. To mitigate the voltage and current harmonics from the output of the MLI JAYA algorithm is employed. This algorithm resulted 2.5% total harmonic distortion (THD) for three phase system and 5.2% THD for single phase system by developing suitable switching angles with rapid acceleration and reduces the computational burden. The efficacy of the algorithm has been justified by the comparison study with most popular swarm based algorithms known as particle swarm optimization (PSO) and Genetic algorithm (GA). The performance of the reduced MLI has been studied by developing a prototype for single phase and three phase in both MATLAB Simulink environment and experimental setup.

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“…In this study, a modified JAYA algorithm is implemented to overcome these issues using a frequency-dependent objective function. The proposed MJAYA algorithm solves the OLF problem with loss minimization, while maintaining the voltage stability index and voltage deviation index (VDI) (Mohanty et al , 2023).…”

Section: Introductionmentioning

confidence: 99%

Loss minimization based optimal frequency selection for low frequency transmission lines using telegrapher’s method

Anand,

Chatterjee,

Goswami

2023

COMPEL

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Purpose The purpose of this study is to obtain the optimal frequency for low-frequency transmission lines while minimizing losses and maintaining the voltage stability of low-frequency systems. This study also emphasizes a reduction in calculations based on mathematical approaches. Design/methodology/approach Telegrapher’s method has been used to reduce large calculations in low-frequency high-voltage alternating current (LF-HVac) lines. The static compensator (STATCOM) has been used to maintain voltage stability. For optimal frequency selection, a modified Jaya algorithm (MJAYA) for optimal load flow analysis was implemented. Findings The MJAYA algorithm performed better than other conventional algorithms and determined the optimum frequency selection while minimizing losses. Voltage stability was also achieved with the proposed optimal load flow (OLF), and statistical analysis showed that the proposed OLF reduces the frequency deviation and standard error of the LF-HVac lines. Originality/value The optimal frequency for LF-HVac lines has been achieved, Telegrapher’s method has been used in OLF, and STATCOM has been used in LF-HVac transmission lines.

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A Reduced Switch Count Multilevel Inverter for PV Standalone System using Modified JAYA Algorithm

Cited by 6 publications

References 20 publications

Loss Minimization and Voltage Stability With Optimum Frequency Determination of LF-HVac Lines Based on Wind-Hydro-Gas Turbine Unit

Loss Minimization and Voltage Stability With Optimum Frequency Determination of LF-HVac Lines Based on Wind-Hydro-Gas Turbine Unit

Modified Asymmetrical H-Bridge MLI With Minimum Switching Loss and Harmonic Distortion Using JAYA Algorithm

Loss minimization based optimal frequency selection for low frequency transmission lines using telegrapher’s method

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