The Improved Unified Power Quality Conditioner with the Modular Multilevel Converter for Power Quality Improvement

Thentral, T. M. Thamizh; Palanisamy, R.; Usha, S.; Vishnuram, Pradeep; Bajaj, Mohit; Sharma, Naveen Kumar; Khan, Baseem; Kamel, Salah

doi:10.1155/2022/4129314

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…Sally E. Abdel Mohsen et al [26] discussed that UPQC injects the required voltage magnitude so that UPQC's performance is successfully achieved to provide a flicker-free LED lighting network. The technology can address the severe dynamic and static PQ challenges for networks of LED lighting.Thamizh Thentrala er al., [27] presented modified unified power quality conditioner based on a modular multilevel converter is implemented to mitigate the voltage and current related power quality issues. the voltage related compensation is implemented with a seven-level MMC, and the current compensation is achieved with a reduced four switch voltage source inverter.…”

Section: Reviewmentioning

confidence: 99%

Enhancement of power quality in grid-connected HRES using UPQC with self-improved Battle Royal Optimizer in IEEE 14 bus system

Ranjan,

Choudhary

2023

Eng. Res. Express

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The integration of hybrid renewable energy systems (HRES) in grid-connected load systems has become popular due to its ability to enhance reliability and reduce losses. However, this integration can lead to power quality (PQ) issues caused by non-linear, critical, and unbalanced load conditions. To address these PQ issues and compensate for load demand in HRES systems, a new method called Self-Improved Battle Royal Optimizer (SI-BRO) has been proposed. This method involves the use of a Unified Power Quality Conditioner (UPQC) device, which is designed to improve the system’s PQ performance. To enhance the performance of the UPQC device, an optimized fuzzy logic controller is introduced in the series and shunt active power filter, and its parameters are optimized using the SI-BRO model. The proposed method is implemented in MATLAB/Simulink, and its effectiveness is evaluated through different scenarios in IEEE 14 Bus system. These scenarios include the introduction of a nonlinear load to create PQ issues, and the comparison of Sag, Swell, and fluctuation of proposed technique i.e. SI-BRO optimizer with BRO,HHO ,EHO optimizer and calculation of THD in proposed technique.In all cases of Sag,Swell, Fluctuation , the proposed techniques gives better results in comparison to BRO,HHO & EHO.

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Section: Reviewmentioning

confidence: 99%

Enhancement of power quality in grid-connected HRES using UPQC with self-improved Battle Royal Optimizer in IEEE 14 bus system

Ranjan,

Choudhary

2023

Eng. Res. Express

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“…Passive component count is increased to three times the total number of outputs. Various modular multilevel converters discussed in other papers [26][27][28][29] utilize different controllers based on the necessities which are suitable for high-power applications. Inductor current ripple minimization for triple output converter by gate pulse shifting technique is discussed in Nupur and Nath.…”

Section: Introductionmentioning

confidence: 99%

Coupled inductor‐based triple output bi‐polar converter with duty cycle estimation

Karuppusamy,

Somalinga,

Kumaraswami

2023

Circuit Theory & Apps

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SummaryMulti‐output converters have been accepted in many portable and display applications due to their ability to optimize hardware both in terms of number of switches as well as on the inductances. Many of these applications require the input voltage to be both stepped up and stepped down, and some applications also require negative outputs. This paper proposes a non‐isolated converter topology which can generate positive buck and boost outputs and also a negative output using a coupled inductor. The converter can operate in continuous and discontinuous conduction modes (DCMs). A detailed analysis of the converter is done in both modes, and it is shown that the outputs can be controlled by direct real‐time analytical estimation of the duty cycle in DCM. Coupled inductor enables the possibility that more than one output can be simultaneously supplied, reducing the cycle time and increasing throughput. Independent control of all three outputs confirms that cross‐regulation is avoided due to real‐time continuous estimation of the duty cycles. The proposed converter is verified by building a hardware model for multi‐output voltages of 5, 24, and −5 V with an input voltage of 12 V using a Spartan‐6 FPGA controller. Experimental results validate that 94% converter efficiency and regulated output voltages under full load conditions. Steady state and dynamic performance of the converter illustrate the effect of suggested control technique to alleviate cross‐regulation in multi‐output converters.

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Improved backward model predictive control for modular multilevel active power filter

Pan,

Sun,

Chen

et al. 2024

Int. J. Dynam. Control

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The Improved Unified Power Quality Conditioner with the Modular Multilevel Converter for Power Quality Improvement

Cited by 11 publications

References 23 publications

Enhancement of power quality in grid-connected HRES using UPQC with self-improved Battle Royal Optimizer in IEEE 14 bus system

Enhancement of power quality in grid-connected HRES using UPQC with self-improved Battle Royal Optimizer in IEEE 14 bus system

Coupled inductor‐based triple output bi‐polar converter with duty cycle estimation

Improved backward model predictive control for modular multilevel active power filter

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