To allow a complex, high-order, nonlinear three-phase asynchronous motor to track a load torque quickly and realize high performance speed regulation, a precise nonlinear feedback linearization method based on the theory of differential geometry was used to transform the motor nominal dynamic model into two completely decoupled, second-order, linear rotor speed and flux linkage subsystems. Two active

The renewable energy capture for a ship’s propulsion system was optimised for a combination of wind sail and solar power using two models. The first model optimised the rigid wind sail angle under varying wind conditions, while the second model optimised the available deck area of the ship assigned to wind and solar systems to maximise total power production. The optimum power obtained from the results

Liquid air energy storage is a very new energy storage technology for large-scale applications with brilliant advantages over the other available grid-scale storage concepts such as higher energy density and no topographical restriction. In the present study, to assist more development of this technology, an efficient and green multi-generation system based on the liquid air energy storage, absorption

Cooling with nanofluids has been one of the most promising cooling strategies used to minimize PV module temperature and enhance the performance of the system. This article presents a comprehensive literature survey on the recent advancements in solar PV cooling technologies, the role of nanofluids on the performance of PV thermal systems, the available analyses of PV cooling techniques, the usage

Although solar chimneys have been extensively investigated, their performance in multi-zone buildings have been overlooked previously. This study aims to examine the airflow characteristics inside a wall solar chimney and the attached ventilated multiple zones, together with the solar chimney performance, under various configurations (i.e., chimney cavity and room) and external environment (i.e., solar

This study was an attempted to present an organized structure of double-fed induction generator wind power plant with power oscillation damper (POD) in operational way and adjustable error-driven stabilizer to increase low-band oscillation reacted to their impacts in the energy system in state of charging. A novel non-linear stabilizer is suggested in the current research to compensate for the drawback

The current study highlights the importance of intelligent control for Insulated Greenhouse (IG) with the exploitation of wind energy in order to minimize energy consumption. The experiment of the IG has been conducted with and without a Fuzzy Logic Controller (FLC). Firstly, an innovative dynamic model is established and experimentally validated to be then controlled via a FLC to attain a favorite

Accurate assessment and analysis of wind energy resources are the key to wind farm planning. In this study, we evaluate the wind energy resource potential in the Urat area of Inner Mongolia, China, based on data measured from four 70–100 m/s wind tower. We first model the wind speed by the Weibull distribution where the parameters are estimated by various numerical and intelligent optimization methods

This study focuses on a solar-assisted trigeneration system, designed to meet the electricity, cooling, and heat demands of a residential consumer center. This is the first study to consider different dead state temperatures in the exergy assessment (10–30 °C) of a system containing an absorption chiller. Mass, energy and exergy balances were developed, and the exergy model is based on the SPECO methodology

Short-term wind speed prediction is an indispensable part of the operation and control of wind energy power generation systems. However, many prediction models proposed by researchers did not preprocess the original data or consider the limitations of a single prediction model, resulting in poor prediction accuracy. Based on the no-negative constraint theory, this study uses five neural networks with

Traditional energy resources are costly and depleting, and their use leads to environmental pollution. The renewable energy resources usage (especially in combination) is unavoidable to meet the energy demand of human societies and achieve sustainable development. The aim of this paper is present the investigation of a new energy system operation based on fuel cell technology and wind energy. The novel

In this paper, a new control method is proposed for microgrid-connected voltage source converters (VSCs), which generally contain voltage and current control loops. The voltage of the point of common coupling (PCC) is analyzed by recursive least squares (RLS) algorithm and its fundamental positive symmetric components are extracted by the voltage control loop. Using the fundamental positive symmetric

Solar simulators are key facilities for conducting solar research and certification tests under a well-controlled environment. This study presents the optical design optimization of a modular low flux solar simulator to improve solar technology qualification testing. The optical system was designed as a multi-lamp array of 26 subunits. Each subunit consists of a 575 We metal halide lamp and a parabolic

Well-optimized decision-making is a prerequisite for effective energy planning, and this requires several criteria to be considered. The multi-criteria decision analysis (MCDA) methods underpin this decision-making process through different techniques. A MCDA method can provide a reliable methodology that helps to organize the most optimized result in the presence of many different opportunities, parameters

Molten salt is one of the most commonly used heat storage working fluids in solar thermal power. However, its heat transfer coefficient is low. Optimizing the heat transfer condition could improve the heat transfer performance of molten salts, thereby facilitating convection that enhances heat transfer. In trough and tower solar thermal power generation systems, the heating surface of the molten salt

Developing clean energy policy supported by science-based research is essential for mitigating the hazards and risks associated with climate change. This study aims to explore ground source heat pump (GSHP) systems, an underutilized energy efficiency technology, as a means to promote emission reductions in the buildings sector. GSHP systems have the capacity to decrease the environmental impact of

Solar PV development gained airport operators' attention in the wake of its negligible carbon emission and onsite electricity generation. The solar PV projects in airports cater to its energy, economic and environmental needs. A comprehensive study on multi-dimensional performance aspects of the airport-based solar PV system is not presented anywhere. This study investigates the energy, exergy, economic

Despite the studies that have been done on boosting the performance of solar collectors, their efficiency is still not acceptable and therefore, it is necessary to provide new solutions to augment their performance. Therefore, in this numerical contribution, the thermal-hydraulic performance of parabolic trough solar collectors (PTSCs) has been improved by using two twisted tapes. The MgO-MWCNT (80%:20%)/thermal

The major challenge in Enhanced Geothermal System is to circulate the injected fluid in most part of the reservoir. One solution to this problem is to create artificial fractures in the reservoir and optimally position multiple injection wells and multiple production wells. The wells layout plays a crucial role and requires investigation. This is the ultimate goal of this paper in order to extract

A Virtual Power Plant (VPP) is a practical concept that aggregates various Renewable Energy Sources (RESs) to improve energy management efficiency and facilitate energy trading. Operation scheduling for all energy components in VPPs plays a vital role from an energy management perspective. Technical and economic constraints and uncertainties that significantly affect the scheduling program must be

Polygeneration has gained increased attention since it embraces efficient energy utilization while contributing to alleviate environmental pollution. The fossil-fuel dependence of trigeneration/cogeneration systems presses for maximizing energy conversion rates. Waste Heat Recovery (WHR) from natural gas engine exhaust represents a significant opportunity to improve fuel utilization. This study presents

This paper presents a comprehensive approach to elucidate the mechanical and thermal aspects of coating layers integrated with organic-based PCMs. In that respect, three sets of cement mortars were studied experimentally to underline the significance of PCMs proportion. From a mechanical point of view, the strength of specimens cured at 20 °C resulted to be superior compared to 40 °C, with a more evident

The aim of the present work is to investigate the situation of solid waste management in Tehran and compare it with Beijing. This paper presents the electricity production potential of methane from waste collected and greenhouse gas assessment in 16 districts from Beijing and 22 districts from Tehran in 20 years (2019–2038) using landfill gas to electricity system. Evaluation of economic feasibility

The energy sector currently faces growing challenges related to increasing demand, efficiency, a lack of analytics required for optimal management, and changing supply and demand patterns. Renewable energy technologies such as Energy forecasting, energy efficiency, and energy accessibility are the key factors that incorporate Artificial intelligence. In this paper, the Artificial Intelligence-based

Integrating distributed generators (DGs) in radial distribution networks plays a vital role in improving the system performance via enhancing the bus voltage and minimizing the system losses. Nonetheless, uncoordinated DGs integration may cause technical issues if they are not efficiently planned, controlled, and operated. Therefore, this paper proposes a new methodology based on the recent metaheuristic

Integrated Energy System (IES), which covers electricity/gas/heat and other different energy sources, is an integral source of energy and Fault Detection in dynamic processing. Some key Challenges, such as collaborative planning, tracking optimization, threat review, state assessment, situational awareness, and general demand-side management, are addressed and discussed in this paper. Further, the

Due to reduction of feed in tariff, the exploration of design solutions for smart cost-effective energy system is required to enable the consumers to select the optimum capacity of renewable energy system. This study investigates an innovative reward-penalty mechanism which is specifically designed to promote net zero energy buildings and net zero energy communities. Two different strategies (i.e.

The need to combat the increase in global warming is well taken by solar energy lead renewable energy resources. The techno-economic feasibility of solar systems in the form of photovoltaic (PV) generation is highly dependent upon its operating conditions. The nonlinear control problem is further worsened by partial shading (PS) environment causing major power losses. Bio-inspired maximum power point

Because of big data on energy consumption, there is a lack of research on the discrete manufacturing system. The discrete manufacturing system has plenty of multi-source and heterogeneous data; it was challenging to collect real-time data. Recently, low carbon and green manufacturing is a hot field; especially, it can save electrical energy. This paper proposes a significant energy consumption data

In this work, a hybrid solar system, which consists of parabolic trough collector equipped with photovoltaic (PV) module and thermoelectric generators (TEGs), is studied. The aim of this work is to develop a new thermal modeling for parabolic trough photovoltaic thermoelectric (PTPVT-TE) system using thermal resistance analogy. The thermal modeling is simulated using MATLAB software, compared and validated

Knowledge of diffuse radiation is essential to design and monitor passive and active solar systems. Measuring diffuse radiation is not common in most meteorological stations. Therefore, developing empirical models for many regions is inevitable. In the current study, a comprehensive review was conducted on all available monthly, daily, and hourly empirical model formats (MFs) to estimate the horizontal

To comprehensively consider the impact of uncertainties of variable energy resources (VERs) and load demands on the scheduling plans, the paper proposes a multi-time scale coordinated optimization (MTSCO) method of the energy hub (EH) with multi-energy flows and multi-type energy storage systems (MESSs). The MTSCO involves with global optimization of day-ahead economic dispatch (DAED), local intra-day

Solar photovoltaic (PV) microgrid has the potential to electrify and decarbonise rural communities in tropical countries, such as Indonesia. The tropical region receives a significant amount of solar radiation throughout the year, benefiting from its equator position. Despite its potential abundance, most equatorial countries have low solar PV microgrid penetration on their grids. Its deployment is

Numerous studies have been conducted over the past decades to improve the performance of energy systems using nanofluids. This research seeks to evaluate the effect of the simultaneous use of thermoelectric cooling and heating application with various nanofluids on the performance of solar still. The nanofluid temperature decreases with thermoelectric cold side in the cooling tank and flows on the

We studied the dynamic performance of a photovoltaic thermal system with a complete contact between water and PV module at zero reduced temperature (as defined by ASHRAE standard 93–2010). The system gives suitable electric-thermal performances and can be used in district heating and electric power generation systems. All experiments were done in Semnan city (northern part of Iran). The main part of

High levels of non-dispatchable photo-voltaic (PV) generation integrated with the grid may disrupt its operation. Aligning the PV panels to follow local building demand can partially elevate this. We investigate the economic viability of alignment for buildings owners and grid utility. A bi-level optimization framework is built to determine the design of a building rooftop PV system. An upper-level

A solar-assisted biomass-based tri-generation system is suggested to provide domestic energy demands and studied from the perspectives of thermodynamics and sustainability. In the proposed combined system, gas and steam turbines are considered as the main power generation systems, while the chiller and an auxiliary heat exchanger exploit the thermal energy content of the effluent. A pressurized water

This paper explores the linkage between ongoing clean energy-transition, technology and business model emergence in the German energy sector. The speed of energy-transition is often led by innovative startups. Startups with innovative products, services, or value propositions are a key indicator, supporting successful energy-transition. Though, commercial databases cover comprehensive details to understand

The rapid upsurge in distributed solar adoption in Malaysia provides an opportunity for adopters to lower electricity bills and gain additional community benefits, including grid stability and lower grid emissions. The main factors for rising electricity generation from renewable fuels are gaining independence from fossil fuels and combating climate change. Solar photovoltaic (PV) is believed to have

Zero-emission pure electric vehicles (PEVs) have been progressively developed towards scale production as passenger cars. However, the power, economy, driving range, and other indicators are seriously restricted by onboard batteries. In freezing winter and sultry summer, these problems are greatly aggravated by the energy versus temperature characteristics of the batteries and the turning on of air

Global governments only collect landfill taxes and fees for the disposal of most construction waste and ignore discount and economic compensation measures. Thus, stimulating construction contractors’ enthusiasm for recycling waste resources becomes difficult, and construction waste utilization remains at a comparatively low level. This study first constructs a compensation model of evolutionary game

This study proposes a hybrid global maximum power point tracking (GMPPT) scheme integrating an extreme learning machine with 0.8Voc technique for PV system. An attempt is made to employ an anti-windup fractional-order proportional-integral controller for the MPPT. The controller parameters were tuned using an enhanced salp swarm algorithm. The algorithm integrates via an accurate detection scheme that