Sliding Mode Control of DSTATCOM for Power Quality Improvement

Kumar, Amit; Kumar, Pradeep

doi:10.1109/icps48983.2019.9067552

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…is is also helpful to decrease phase-shifting problems at broad bandwidth, but high-frequency switching application switches may have a drawback of SMC which is chattering noise; this can be overcome by placing sigmoid function instead of sign function [19]. SMC has a vital role in enhancing the power quality by decreasing THDs in source current basically used to generate reference signals for PWM inputs [20]; this controller helps to control the dc bus voltage in shunt active power filter to calculate reference currents by using selftuning filters [21]. An adaptive sliding mode controller is used to calculate the real and reactive powers of the system, also applicable for renewable energy systems and PV systems [22].…”

Section: A Sliding Mode Controller For Dstatcommentioning

confidence: 99%

A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

Swetha

Sivachidambaranathan

2022

International Transactions on Electrical Energy Systems

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In recent times, neutral point piloted (NPP) or half-leg T-type multilevel inverter (MLI) becomes a promising topology for medium-voltage high-power applications. This T-type MLI is the best substitute for diode clamped multilevel inverter (DCMLI) due to its simple structure and absence of clamping diodes. However, the neutral point voltage control or dc bus capacitors' balance of NPP T-type MLI is a challenging task. Therefore, this paper presents a nonlinear sliding mode controller (SMC) for dc-link voltage balance and reference current control in distribution static compensator (DSTATCOM). For this, a three-level T-type MLI-based three-phase four-wire DSTATCOM is considered to eliminate current-related power quality issues such as harmonics, reactive power, load unbalance, and neutral current. The proposed NPP T-type-based DSTATCOM is compared with DCMLI and active DCMLI-based DSTATCOMs in terms of switching losses and cost. Simulation studies are carried out in MATLAB Simulink environment and further corroborated with experimental studies. Furthermore, the ability of the proposed SMC-based controller is compared with the PI controller under different operating conditions.

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Section: A Sliding Mode Controller For Dstatcommentioning

confidence: 99%

A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

Swetha

Sivachidambaranathan

2022

International Transactions on Electrical Energy Systems

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“…Hence, voltage source inverter-based multilevel inverters are used in most medium to high-power applications. The voltage source inverter base can be categorized as: i) a cascaded H-bridge MLI (CHB MLI), ii) a neutral point clamped MLI (NPC MLI), and iii) a flying capacitor MLI (FC MLI) [6], [7]. The CHB-MLI is most preferred due to the complexity posed by the neutral point clamped and flying capacitor multilevel inverter [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Cascaded H-bridge multilevel inverter-based DSTATCOM with an artificial neural fuzzy inference systembased controller

Chenchireddy,

Jegathesan

2023

IJEECS

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<span>In this paper, <span>a voltage source inverter is utilized as a distributed static compensator (DSTATCOM). The DSTATCOM is used for the elimination of harmonics caused by the nonlinear load. The reference currents of DSTATCOM were estimated with a synchronous reference frame (SRF). Conventionally, the SRF uses voltage, load current and filter current to compute the reference current to track desired source current for DSTATCOM. The sliding mode controller and feedback linearization are used to design the current controller. The feedback linearization technique and sliding mode control are used to cancel nonlinearities and offer invariant stability due to modeling uncertainties due to the DSTATCOM parameter and external load disturbance. The sliding mode controller requires a rigorous mathematical model of the system. To overcome this, an artificial neuro-fuzzy inference system (ANFIS) is devised for the control of DSTATCOM. The training data of the ANFIS controller is generated from the sliding mode controller algorithm. The overall system of DSTATCOM including the ANFIS algorithm is implemented in MATLAB/Simulink SimPower block sets. The simulated response of DSTATCOM was found to be improved and better than the sliding mode controller scheme.</span></span>

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“…It adjusts voltage, improves fault ride-through capability, boosts power quality, responds quickly, and minimizes fault currents. These features assist in mitigating the impact of faults, minimizing downtime, and protecting essential loads from voltage changes and other fault-related disruptions [13]. According to statistics, distribution system incidents account for around 80% to 90% of power system blackouts.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Indian Practical Distribution System Resilience Through Microgrid Formation and Integration of Distributed Energy Resources Considering Battery Electric Vehicle

Yuvaraj,

Devabalaji,

Suresh

et al. 2023

IEEE Access

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Electrical microgrids (EMGs) are positioned to play an important role in the future distribution grid as technology advances and distributed energy resources (DERs) emerge. In the event of major natural disasters, the functioning capabilities of active distribution systems (DS) face ongoing problems. To assess the resilience of a distribution system, a thorough methodology must be established. This study proposes a methodology that demonstrates how the use of EMGs and DERs, in conjunction with line hardening, can improve resilience in extreme operating situations. The framework examines four separate scenarios, each with its own set of restoration procedures and critical loads. A combination of battery electric vehicles (BEVs), solar photovoltaic distributed generation (SPV-DG), battery energy storage systems (BESS), and distribution static compensators (DSTATCOMs) is being integrated into practical Indian distribution systems consisting of 28 and 52 buses to improve resilience. The goal is to improve the newly specified resilience indices and restore all of the loads that have been affected by the faults. The bald eagle search algorithm (BESA) is used to identify the appropriate allocation of SPV-DG and solve the objective function within the system. The results of our tests show that our proposed technique has the capacity to enhancement the resilience and successfully restore all damaged loads in a distribution system.

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Sliding Mode Control of DSTATCOM for Power Quality Improvement

Cited by 4 publications

References 9 publications

A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

A Nonlinear Controller for Neutral Point Piloted (T-Type) Multilevel Inverter-Based Three-Phase Four-Wire DSTATCOM

Cascaded H-bridge multilevel inverter-based DSTATCOM with an artificial neural fuzzy inference systembased controller

Enhancing Indian Practical Distribution System Resilience Through Microgrid Formation and Integration of Distributed Energy Resources Considering Battery Electric Vehicle

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