This paper presents an economical-technical-environmental dispatch (ETED) model for adapted IEEE 30-bus system incorporated with thermal and a mix of renewable energy sources (RESs). Total fuel costs, active power losses, emissions level minimization is the main aim. Different equality inequality limits involving prohibited operating zones (POZs) are considered as restrictions. Metaheuristic optimization techniques – moth-flame optimization, salp swarm algorithm, improved grey wolf...

A new switched-capacitor-based topology with features of boosting and self-voltage balancing the capacitor has been proposed in this study. The multilevel inverter uses two isolated dc voltage sources a switched-capacitor to produce 11 levels across load. In study, different modes selection have discussed for topology. Furthermore, generalised structure boost also discussed. Quantitative comparison several topologies carried out set benchmark Selective harmonic elimination pulse width...

Parameters of the solar cell equivalent circuit models have a significant role in assessing cells’ performance and tracking operational variations. In this regard, estimating parameters is difficult task because cells nonlinear current-voltage characteristics. Thus, fast accurate optimization algorithm usually required to solve engineering problem effectively. This paper proposes two hybrid variants honey badger (HBA) artificial gorilla troops optimizer (GTO) estimate parameters. The...

There are three standard equivalent circuit models of solar cells in the literature—single-diode, double-diode, and triple-diode models. In this paper, first, a modified version single diode model, called Improved Single Diode Model (ISDM), is presented. This modification realized by adding resistance series with to enable better power loss dissipation representation. Second, mathematical expression for current–voltage relation derived terms Lambert’s W function solved using special trans...

Switched capacitor multilevel inverter (SCMLI) with reduced components is attractive for higher number of voltage levels due to less implementation complexity and low cost. In this study, a new family hybrid SCMLI high frequency power distribution system presented eliminate the intermediate conversion. Firstly, five‐level employing single source proposed, which further extended nine‐level (9L) its operation. Further extension/enhancement proposed 9L‐SCMLI generating achieved on basis...

Due to the limited availability of fossil fuels and environmental concerns over greenhouse gas emissions, micro-grid systems (MGSs) have become crucial for integrating a high penetration renewables. Nonetheless, complexity operation MGS increases in actual operating process due irregular nature renewables, electrical loads (load demands), uncertain market prices. The core aim this paper is suggest bi-objective optimization model managing energy efficiently grid-connected MG while considering...

In this paper, a new single-phase hybrid multilevel inverter (MLI) is proposed. Compared to other existing MLI topologies, the proposed circuit capable of producing higher number output voltage levels using fewer power switches and dc sources. The are synthesized by switching sources in series/parallel combinations. An auxiliary introduced double creating an intermediate step between two levels. addition, zero level overcome inherent absence original circuit. To improve total harmonic...

Electricity demand forecasting remains a challenging issue for power system scheduling at varying stages of energy sectors. Short Term load (STLF) plays vital part in regulated systems and electricity markets, which is commonly employed to predict the outcomes failures. This paper presents an intelligent machine learning with evolutionary algorithm based STLF model, called (IMLEA-STLF) involves different operations such as data decomposition, preprocessing, feature selection, prediction,...

Multilevel inverters are proficient in achieving a high-quality staircase output voltage waveform with lower amount of harmonic content. In this paper, new hybrid multilevel inverter topology based on the T-type and H-bridge module is presented. The proposed aims to achieve higher number levels utilizing switches, direct current (dc) sources, stresses across different switches. basic unit single double (STDH-MLI) produces 15 at using three dc sources. can be extended by connecting larger...

This paper proposes an extended model based predictive flux control (MPFC) with modified disturbance observer speed loop for induction motors. The main advantages of the proposed method are improvement load estimation, suppression current overshoot at step changes in reference and removal weighting factor newly formulated cost function. Weighting is removed by using transformation which translates torque, generated controller, into equivalent stator vector eliminating challenging task gain...

Advancements in wind energy technologies have led turbines from fixed speed to variable operation. This paper introduces an innovative version of a variable-speed turbine based on model predictive control (MPC) approach. The proposed approach provides maximum power point tracking (MPPT), whose main objective is capture the spite nature wind’s speed. MPC also reduces constraints two functional parts turbine: full load and partial segments. pitch angle for rotating force been concurrently...

The rate of growth in US electrical demand necessitates the development new generation resources and expansion infrastructure. With respect to this growing current trends energy policy development, makers, corporations, private investors continue push integration green renewable generation, including nuclear, wind, solar power. novel existing sources within electric grid presents requirements challenges for large scale resource management interconnection. sheer magnitude being added grid, as...

In recent years, the doubly fed induction generator (DFIG) operates in a weak grid, rather than strong grid due to high proportion of wind energy into power grid. The impedance interaction between DFIG system and series parallel compensated might cause subsynchronous resonance (SSR) frequency (HFR) system, respectively. Phase locked loop (PLL) is popular synchronization technique, bandwidth PLL can at middle frequencies system. However, impact types their controller dynamics on are not...

This paper presents and studies an improved multilevel inverter topology to produce higher voltage levels with reduced switching devices at the output. The suggested is based on SCSS inverter. In this topology, DC sources are divided into two groups, inner group outer group. function of dc source create square waveforms that close in nature required output waveforms. However, used increase number desired wave. task accomplished by arithmetic operation (addition or subtraction) value blocks...

A new hybrid structure of multilevel inverter topology is recommended in this paper. It designed with the aim reducing number components more levels at output. Proposed uses three dc voltage sources along 10 power semiconductor devices to achieve 13 comparative study given other similar topologies which proves lower components. In order good-quality output voltage, selective harmonic elimination technique used harmonics. Different simulation results have been provided validate proposed topology.

Today, there is a large increase in the demand for electricity. The transmission and distribution networks, however, cannot fulfill unbound demands due to scarcity of resources. Power lines have losses which make situation more unfavorable maximum power transfer. Implementing flexible AC system (FACTS) one best ways reduce line losses. This paper proposes FACTS-based method minimizing fault current system. Switchgear protection equipment also perform better when this done. Moreover, reduced...

This paper presents an in-depth review of classical and state-of-the-art models for analysing the transient stability in wind energy conversion systems. Various simulation a number turbine generator (WTG) configurations are introduced, under different disturbances. The mitigation is achieved, by manipulating speed power electronics control, whereas protection implemented using conventional, intelligent or digital relays safety sensitive components, case fault occurrence. various control...

A novel LC-LC2 compensated resonant converter topology with high efficiency and good controllable voltage gain is presented in this paper. An additional receiving side inductor working together the coil has contribution to work a large range of air gap distance. Due property, proposed compensation technique effective for IPT based EV charging application. Voltage independent load input impedance having ZPA are observed by frequency domain analysis. On other hand, time analysis gives circuit...

In a medium/high voltage and power applications, multilevel inverters (MLI) has been very much influenced by its numerous advantages over two-level inverter. Cascaded H-bridge (CHB) MLI topology extremely used due to modularity in the structure. However, with increase number of levels at output, semiconductor devices escalates. The losses associated also increases, makes system inefficient. converters, switching plays an important role when they are operated high frequency. This paper aims...

In most of the power electronics inverters it is desired to produce clean sinusoidal waves without use for any filtration in output. This topic gathered attentions many researchers because helps reduce cost inverters. paper presents floating source multilevel that utilize double switching frequency modulation technique. method consists inverse wave with two frequencies as a carrier. The scheme uses hybrid where one pair switches operates at high using this carrier while other are operated...