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Power Electronics Converters Applications And Design

Integration of distributed energy resources (DER) has always posed a challenge. Smart inverters have started playing a crucial role in efficient integration of DERs. With the basic functionalities of traditional inverters in place, smart inverters can provide grids with related ancillary services either from the customer side or from the utility as well. The ancillary/augmented service from smart inverters includes the concept of reactive power exchange with the grid. Such grid support functions includes the functionalities of photovoltaic/plug in electric vehicles (PV/PEV) inverters as a static synchronous compensators (STATCOMs) by performing virtual detuning, temporary over voltage (TOV) mitigation, voltage regulation, frequency support and ride through capabilities. As the penetration levels of DERs have gone up, the need for such ancillary services has grown as well. This paper is organized in such a way that it will serve as a benchmark for smart inverter technologies in the form of a review. It includes several domains involving the applications, advanced and coordinated control, topologies and many more aspects that are associated with smart inverters based on reactive power compensation schemes for ancillary services. Apart from that, the applications those are associated with smart inverters in the smart grid domain are also highlighted in this paper.

Novel Exertion of Intelligent Static Compensator Based Smart Inverters for Ancillary Services in a Distribution Utility Network-Review

A novel approach for PV system based on metaheuristic algorithm connected to the grid using FS-MPC controller

https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/iet-pel.2020.0473

A multilevel inverter using switched capacitors with reduced components

This article aims to extend the use of the Kronecker summation method to draw the stability boundary locus for computation of the parameters of a proportional integral (PI) and proportional integra...

Proportional integral derivative controller tuning via Kronecker summation and modified particle swarm optimization with experimental validation

An efficient asymmetrical 15-level smart inverter topologies for micro-grid system using pso-pid tuning algorithm

Nowadays Renewable Energy Sources are getting widely used with the accumulation of demanded energy & concerns of the environmental impacts around the world. The hybrid generation units exerts the photo-voltaic/fuel cell are the main energy system to support the microgrid. This paper explores a unique hybrid power generation, which is compounded of a high step gain DC/DC converter, integrated to grid using seven-level inverter structure. The DC/DC converter interfaces a boost topology & converts the outcome voltage of the hybrid source into two independent voltage sources with a coordinated relationships using power transformer. This unique 7-level inverter structure is configured by selected capacitor unit of DC/DC converter into 3-level DC voltages & the full bridge structure connected as cascaded form. The selected capacitor unit converts the dual outcome voltage sources of DC/DC converter into a 3-level DC voltage and, the full-bridge converter further converts the three level DC voltage to seven level AC voltage. In this process, the proposed concept provides a sinusoidal current is in-phase with the grid voltage & interfaced into utility grid. The salient features of the intended 7-level inverter require only six switches & unique switching at respective high frequency with low harmonized & also qualitated output voltage. A simulink model is implemented to verify the performance evaluation of proposed scheme using Matlab/Simulink platform, results are conferred.

A PV/FC co-generation based micro-grid system using compact integrated 7- level inverter

https://cyberleninka.org/article/n/628443.pdf

A Critical Evaluation of Advanced Multi-Carrier Modulation Scheme for 15-Level Inverter via PSO-PID Controller

The main objective of this concept is attaining optimal harmonic resolution, unity power factor, DC bus voltage regulation, incredible efficiency, and low switch stress. The proposed technique employs a co-generation based micro-grid system via zeta methodology of neuro-fuzzy controller for optimal performance of asymmetrical 15-level inverter. This proposed asymmetrical converter requires only 7 switches over 10 switches for improved 15-level voltage provides a pure sinusoidal current which is in phase with improved grid voltage. ANFIS controller predicts the optimal modulation index&switching angles for an improved output voltage then prevents the sudden variations coming from the grid/DC bus. The proposed concept is so perfect compare to several test system based classical pi, fuzzy controllers. A simulink model is designed to validate the performance evaluation of this proposed work by using matlab/simulink platform and results are conferred. The major findings in this work is getting around 100/400 V with input voltage of 10/40 V within a single module compared to low voltage gain conversion schemes. The type of conversion schemes is mostly preferred in micro-grid applications, irrigation applications and etc.

Influence of Advanced Multi-Carrier Modulation Scheme for 15-Level Multilevel Inverter using ANFIS Controller

Elimination of harmonics in high level inverter is an optimized problem which is interprets by using particle swarm optimization (PSO) technique. The derived objective function is used for the tuning of PID controller to minimize the harmonic content in output voltage. The classical tuning of PID controller usually produces a high overshoot, imperative heuristics approaches are employed to improve the capability of classical techniques. This controller predicts the switching angles and optimum modulation index essentials for an improved output voltage and prevents the sudden variations of the asymmetrical 15-level modern multilevel inverter with fever switches. Here, this model has several inputs such as grid voltage, difference voltage, controlled target voltage. By means of these parameters, this proposed controller makes the better tuning values for enhanced quality voltage at grid, fast steady state response. In this process, the proposed methodology provides a pure sinusoidal current is in-phase with the grid voltage, then interfacing to the grid by PSO-PID controller. A simulink model is designed to validate the performance evaluation of this proposed work using Matlab/Simulink platform and results are conferred.

P. Hemachandu

Papers

An efficient asymmetrical 15-level smart inverter topologies for micro-grid system using pso-pid tuning algorithm

A PV/FC co-generation based micro-grid system using compact integrated 7- level inverter

A Critical Evaluation of Advanced Multi-Carrier Modulation Scheme for 15-Level Inverter via PSO-PID Controller

Influence of Advanced Multi-Carrier Modulation Scheme for 15-Level Multilevel Inverter using ANFIS Controller

A Unique Tuning of PID Controller Using Particle Swarm Optimizer for Modern Multilevel Inverter Fed Micro-grid System