Renewable Revolution: A Review of Strategic Flexibility in Future Power Systems

Sustainability, Journal Year: 2024, Volume and Issue: 16(13), P. 5454 - 5454

Published: June 27, 2024

The global shift toward integrating renewable energy sources, such as solar and wind power, is revolutionizing the landscape, presenting both opportunities challenges for power system operations. This paper delves into critical concept of flexibility, emphasizing importance maintaining reliable service amidst unpredictable fluctuations in supply demand. Given intermittent nature energy, this explores key aspects including generation, demand-side, grid their roles sustaining stability. Various strategies to enhance flexibility future networks are examined, advanced storage technologies, demand response programs, expansion interconnection, sophisticated forecasting methods, adaptive generation. Additionally, underscores pivotal role market regulatory reforms facilitating integration sources enhancing adaptability. By analyzing benefits, limitations, prospects each strategy, work provides a comprehensive overview evolving sector. It highlights necessity aligning frameworks with sustainability climate goals navigate complexities transition effectively.

Language: Английский

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Photovoltaic mini-grid incorporation: The panacea for electricity crisis in sub-Saharan Africa

Unconventional Resources, Journal Year: 2024, Volume and Issue: 4, P. 100079 - 100079

Published: Jan. 1, 2024

The electrification rate in sub-Saharan Africa, standing at 45% 2018, is significantly lower when compared with global benchmarks. 600 million individuals lacking access to electricity constitute over two-thirds of the worldwide aggregate population electricity. Limitations power grids have placed a disproportionate burden lack energy on rural populations. cheapest approach achieving universal numerous regions seems be rooted renewable energy. diminishing cost small-scale solar photovoltaic technology for home systems and mini-grids expected play pivotal role facilitating provision affordable electric millions. This study aims elucidate techno-economic benefits augmenting overarching goal advocating adoption mini-grid solutions Sub-Saharan Africa. Prior research endeavors were meticulously curated examined, some attention also given assessing feasibility grid integration. findings showed that extension most cost-effective means delivery within limited proximity, contingent upon topographical considerations. However, beyond this zone, proven more apt providing clustered customer But are not without challenges. High initial installation, intermittency source, storage problems, integration challenges, identified problems mini-grids. way forward must begin mitigation these Some highlighted include implementation advanced systems, formulation policies geared towards enhancing affordability settings, smart technologies, adherence codes ensure compliance.

Language: Английский

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An Algorithm for Identifying the Possibilities of Cascading Failure Processes and Their Development Trajectories in Electric Power Systems

Algorithms, Journal Year: 2025, Volume and Issue: 18(4), P. 183 - 183

Published: March 24, 2025

Every year, electric power systems (EPSs) experience accidents resulting in static and dynamic instability, as well supply disruptions. Accidents evolve along various trajectories sometimes can exhibit a cascading effect. In this case, the sequential tripping of generating and/or network equipment occurs due to overloads or voltage drops at nodes network. This leads significant losses for industrial commercial consumers, while also escalating social tensions within population. study aims develop an algorithm revealing possibility failure processes EPSs their development trajectories. The use planning managing flows facilitates identification boundary between regions admissible inadmissible post-contingency flows. enables assessment impact topology solutions operational measures on processes. paper presents results steady-state calculation test schemes EPS incorporating 25, 36, 40 with levels 6, 35, 110, 500 kV illustrate influence non-homogeneity parameters occurrence deployment distributed generation facilities different capacities FACTS devices, alongside redistribution by changing load plants electricity costs, are considered that enhance survivability EPS. performance developed was illustrated through analysis process real systemic accident occurred proposed algorithm, when utilized EPS, possibilities pathways subsequently design implement topological adjustments prevent them.

Language: Английский

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Flexible interconnection location and capacity determination based on improved crested porcupine optimizer algorithm

Journal of Physics Conference Series, Journal Year: 2025, Volume and Issue: 3000(1), P. 012032 - 012032

Published: April 1, 2025

Abstract Flexible interconnection, as a novel power system architecture, effectively enhances reliability and economy. The problem of site selection capacity optimization for flexible interconnection represents significant component planning. Its objective is to identify the most advantageous locations capacities devices while adhering constraints security economic viability. This paper proposes solution method based on an improved Crested Porcupine Optimizer (CPO) address this problem. By introducing adaptive crossover strategies elite strategies, CPO its global search ability convergence speed. Furthermore, fitness function adopted better measure comprehensive benefits schemes. results simulation indicate that methodology capable addressing challenges associated with optimization. approach has demonstrated remarkable performance, overall efficiency enhancement surpassing 40%.

Language: Английский

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Power flow control and reliability improvement through adaptive PSO based network reconfiguration

Heliyon, Journal Year: 2024, Volume and Issue: 10(17), P. e36668 - e36668

Published: Aug. 23, 2024

Ensuring stable power flow and reliable supply could maintain system security, improve efficiency, minimize loss, reduce the risk of outage. Power management can be employed to enhance bus voltage decrease losses. The reliability is critical for both customers utility ensure continuity improved revenue. With growing demand supplies, it crucial that utilities devote efforts a consistent meet customer needs. However, frequent occurrence interruptions prolonged duration interruption pose significant challenges distribution systems in town Wolaita Sodo. This study aims explore control through utilization optimal network reconfiguration (DNR). placement tie-switches (TS) address issues done adaptive particle swarm optimization (APSO) algorithm. help APSO, five TS units achieved indices within national standard boundary. backward/forward sweep (BFS) Markov chain-based Monte Carlo simulation (MCMCS) methods are used load analysis. Through simulation, with integration TS, SAIFI decreases from value 557 about 34, SAIDI 573.59h 43.87h EENS 1835.5 MWh 140.38 annually, active loss 1631.15 kW 559.35 kW, minimum increases 0.7537pu 0.9502pu. Finally, evaluation suggested algorithm variants conducted by taking into account takes respond, level convergence achieved, extent which minimized.

Language: Английский

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Power struggles: Advances and roadblocks of solar powered mini grids in Tanzania

Energy Reports, Journal Year: 2023, Volume and Issue: 11, P. 342 - 354

Published: Dec. 9, 2023

Rural energy poverty persists in Tanzania, with 77% of the population not having access to electricity. A combination high solar radiation and slow extension national grid has raised off-grid PV based mini-grids as a potential solution. In this paper, novel Technological Innovation System (TIS) function approach is used analyze positive negative trends mini-grid diffusion country. This framework, adapted for Global South context, considers key dynamic processes (functions) structural components (actors institutions) that are considered essential technological systems, along general institutional infrastructure, informal institutions other contextual factors may influence development implementation systems. Based on semi-structured interviews stakeholders secondary data, paper identified several functions such market formation, entrepreneurial activities guidance search. The demonstrates clear link between worsening conditions changes result new political direction sector followed 2015 presidential election Tanzania.

Language: Английский

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Accelerating Convergence for the Parameters of PV Cell Models

Mathematical and Computational Applications, Journal Year: 2024, Volume and Issue: 29(1), P. 4 - 4

Published: Jan. 10, 2024

Small-scale photovoltaic (PV) systems are essential for the local energy supply. The most commonly known PV cell is configured as a large-area p–n junction made from silicon, but today include cells of various manufactures and origins. dependence relationship between current voltage nonlinear, current–voltage characteristic. values characteristic equation’s parameters define working regime cell. In present work, parameter iteratively obtained by nonlinear regression an explicit model. acceleration convergence these studied approximation simplifying iterative calculation in case perpendicular offsets. new estimations allow much faster estimate maximum power point system.

Language: Английский

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Approach to Modernizing Residential-Dominated District Heating Systems to Enhance Their Flexibility, Energy Efficiency, and Environmental Friendliness

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(22), P. 12133 - 12133

Published: Nov. 8, 2023

The need to modernize existing district heating systems is due increased requirements for their flexibility, energy efficiency, and environmental friendliness. technical policy on pursued in different countries centers the listed goals takes account of historical, climatic, regional features resource, technology, economic availability various thermal sources. This study aims analyze methods designed improve friendliness systems. focus system, which provides hot water supply consumers consists types work shows possibility system transition from third generation fourth one, differ level intellectualization. establishment an intelligent control will ensure interaction heat sources, but this a separate strand research. In study, model methodology were developed optimize structure sources operating conditions when covering load curve territory with predominance household consumers. Gas-reciprocating gas-turbine cogeneration plants are considered as main whose efficiency boosted through joint operation electric boilers, storage systems, low-grade absorption chillers. primary emphasis assessment benefit be gained by using factor enhancing investment appeal findings suggest that next impossible without changing institutional environment, strengthening role active consumers, introducing

Language: Английский

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Applying Data Science to Assess Cyber Security of Renewable Energy and Reserve Markets to Ensure System Reliability

Published: Feb. 14, 2024

Language: Английский

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Control Algorithm of Energy Storage System Based on Virtual Synchronous Generator

E3S Web of Conferences, Journal Year: 2024, Volume and Issue: 584, P. 01017 - 01017

Published: Jan. 1, 2024

Frequency control is one of the most important tasks in electric power systems. However, as a result ongoing introduction into modern systems inertia-free generating facilities based on converters, mainly renewable energy sources, this task becoming more complex. This specificity especially severe microgrids, which are characterized by significant frequency changes. An effective way to solve such problem use storage (ESS) with grid-forming converters. For purpose, paper develops new structure algorithm current-controlled virtual synchronous generator (CC-VSG), damping oscillations implemented via feedforward controller. Also, proportional-integral loop added CC-VSG state charge ESS. A methodology separation bandwidths different loops proposed for tuning CC-VSG. To confirm obtained results, time-domain simulation microgrid ESS using PSCAD software was performed.

Language: Английский

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