Performance Analysis of Single-Stage PV Connected Three-Phase Grid System Under Steady State and Dynamic Conditions

Narasimhulu, V.; Gowd, K. Jithendra

doi:10.1007/978-981-33-6691-6_5

Cited by 7 publications

(7 citation statements)

References 20 publications

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“…The corresponding result waveforms are presented in Figure 7. The MMC capacitor voltage controller [20] takes more time to reach the steady state due to the inaccuracy in selection of K p and K i gains of the PIC. The THD is recorded as 4.91%.…”

Section: Simulation Results Analysismentioning

confidence: 99%

Auto tuning of PI Gains using Cuttlefish Optimization for DC Link Voltage Control in a 5-level HB MMC D-STATCOM

Ramakrishna,

Gadhamappagari,

Sujatha

2023

Eng. Technol. Appl. Sci. Res.

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The performance of a Half Bridge (HB) Modular Multilevel Converter (MMC) for D-STATCOM application is studied in this article. For the control of MMC switches, the Carrier-Based (CB) Pulse Width Modulation (PWM) scheme has been selected as the appropriate method. There are two types of CB PWM schemes such as phase shift and level shift. Phase Disposition (PD), Phase Opposition Disposition (POD), and Alternate Phase Opposite Disposition (APOD) are the three different types of PWM that are used in level shifts. The PD CB PWM is projected in this work due to its simplicity and accuracy. The conventional PI Controller (PIC) has its disadvantages, including that it is time-consuming and comes with complexity in the estimation of gain values. Hence, the Cuttlefish Optimization Scheme (COS) is proposed for the online tuning of the PI gain values. The verification of performance parameters, including active power, reactive power, DC voltage balance, and Total Harmonic Distortion (THD), is effectively conducted using the COS method and subsequently compared with the conventional PIC. The suggested research is executed using the Matlab/Simulink software package.

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Section: Simulation Results Analysismentioning

confidence: 99%

Auto tuning of PI Gains using Cuttlefish Optimization for DC Link Voltage Control in a 5-level HB MMC D-STATCOM

Ramakrishna,

Gadhamappagari,

Sujatha

2023

Eng. Technol. Appl. Sci. Res.

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“…Figure 1 depicts the intended block diagram. The proposed block includes both the PD PWM [12]- [16] controller and the DC voltage link controller [17]- [20], both of which are used to manage the MMC [21]- [27] DSTATCOM of DC voltage link and insulated-gate bipolar transistors (IGBTs). The connection between DSTATCOM and PCC is described as being in shunt.…”

Section: Methodsmentioning

confidence: 99%

Enactment of HBMMC five-level inverter based D-STATCOM using robust controllers

Ramakrishna,

Jayakrishna,

Peddakotla

2024

IJPEDS

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This paper provides the results of a concerted investigation into developing a robust voltage controller for the modular multilevel converter (MMC) used in the D-STATCOM. The simplicity of the half bridge (HB) sub-module, along with the fact that it has minimal conduction losses, led to its adoption in the MMC. For the purpose of controlling the HB MMC switches, an enhanced modulation strategy based on the phase disposition (PD) scheme has been implemented. In the presence of nonlinear load conditions, the converters are experiencing difficulties with the DC voltage balancing. The sliding mode controller (SMC) is utilized so that the DC voltage can be maintained in a balanced state. Performance characteristics including active power, reactive power, dc voltage control and THD are shown and compared. For the purpose of simulating the indicated methodology, MATLAB/Simulink is the tool of choice.

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“…Also, the grid-side inverter PWM signal can be used to regulate the system. It can be adopted to keep the DC link at a constant voltage [13][14][15][16][17], which will decouple the grid from power fluctuations caused by wind variations. The overall control method for the PMSG [1,4,[9][10][11][12] based wind energy power system is depicted in Figure 2.…”

Section: Modeling Of the Hybrid Generation Systemmentioning

confidence: 99%

PV and Wind Energy Conversion Exploration based on Grid Integrated Hybrid Generation Using the Cuttlefish Algorithm

Nagaraja¹,

Devaraju²,

Sankar³

et al. 2022

Eng. Technol. Appl. Sci. Res.

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This paper focuses on the exploration of grid-integrated hybrid generation comprising Photovoltaic (PV) and Wind Energy Conversion Systems (WECSs) using the Cuttlefish Algorithm (CFA). PV and wind energies are opposite because sunny days are normally calm, and strong winds frequently occur on cloudy days or at night. Hence, a hybrid PV and wind power system is more reliable than either individual source in terms of delivering uninterrupted power. The regulation of the DC voltage is the key issue in this configuration. The conventional PI controller is inaccurate in regulating the DC voltage. The PI controller gain tuning using optimization techniques provides good DC voltage regulation and less Total Harmonic Distortion (THD). Hence, CFA is proposed for the tuning of PI gains. The performance parameters such as DC voltage regulation and THD of CFA are analyzed.

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Performance Analysis of Single-Stage PV Connected Three-Phase Grid System Under Steady State and Dynamic Conditions

Cited by 7 publications

References 20 publications

Auto tuning of PI Gains using Cuttlefish Optimization for DC Link Voltage Control in a 5-level HB MMC D-STATCOM

Auto tuning of PI Gains using Cuttlefish Optimization for DC Link Voltage Control in a 5-level HB MMC D-STATCOM

Enactment of HBMMC five-level inverter based D-STATCOM using robust controllers

PV and Wind Energy Conversion Exploration based on Grid Integrated Hybrid Generation Using the Cuttlefish Algorithm

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