A new measure of wind power variability with implications for the optimal sizing of standalone wind power systems

Yuan, Qiheng; Zhou, Keliang; Yao, Jing

doi:10.1016/j.renene.2019.12.121

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…It is, thus, incomplete to conclude that Uganda's wind energy potential is not commercially viable, with no comprehensive wind data assessment. Even then, Yuan et al (2020) contend that standalone power systems can generate electricity from intermittent power sources. In addition, though costly, the effects of wind intermittency can be mitigated by battery banks and storage to manage load demands.…”

Section: Variability Intermittency and Speed Of Windmentioning

confidence: 99%

Assessing wind energy development in Uganda: Opportunities and challenges

et al. 2021

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In this paper, we utilize a systematic review to assess opportunities and challenges in wind energy development in Uganda. Apart from being an environmentally friendly and renewable energy resource, development of wind energy could boosts economic growth and creates jobs. For Uganda, rising energy demand, need to reduce greenhouse gas emissions, and increasing electricity access to rural areas, emerge as rational opportunities to invest in wind energy. The main obstacles to wind energy development in Uganda are insufficient wind resource data, high initial investment cost, inadequate research and development, weak infrastructure, and unsupportive policies. For policy, comprehensive wind resource assessment, energy infrastructure investment, financial de-risking, capacity building, and deliberate wind power policy incentives could accelerate wind energy development and consequently contribute to the country’s energy security.

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Section: Variability Intermittency and Speed Of Windmentioning

confidence: 99%

Assessing wind energy development in Uganda: Opportunities and challenges

et al. 2021

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“…While standalone energy generation systems bring many benefits, the challenge of effectively managing these systems to prevent overloading becomes paramount [10]. Variability in demand and unforeseen peaks can strain the capacity of standalone electricity systems, necessitating the development of sophisticated load management solutions [13], [14]. Addressing this challenge is crucial for ensuring the reliability and longevity of these systems, as well as for unlocking their full potential in diverse settings.…”

Section: Introductionmentioning

confidence: 99%

Design and construction of an Arduino-based load-shedding management system for improving electricity consumption in a medium-sized creative office building

Amusan,

Olorunfemi,

Fagboyo

2023

JD-FEWS

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Standalone energy generation is revolutionizing electricity production and consumption by offering decentralized and sustainable options, benefiting communities, enhancing resilience, and reducing dependence on traditional power grids. Nevertheless, standalone electricity systems can face overloading issues when demand varies or exceeds capacity, necessitating careful control and adaptable solutions. The scalability of standalone electricity systems is limited by infrastructure, technology, and cost, hindering easy capacity expansion to accommodate higher loads. This paper explores the feasibility of managing load shedding in an office building with a standalone energy source, assessing its impact on optimizing electricity consumption and contributing to operational efficiency, sustainability, and resilience. A hardware prototype has been developed for a programmable interface designed to automatically manage various loads from the distribution board in a controlled manner. This includes controlling lighting, heating, cooling, security devices, and essential office gadgets. The system is implemented and validated through experiments utilizing the Arduino Mega control board. Operators can input load-shedding times flexibly using a 4x4 matrix keypad synchronized with the real-time clock (RTC). The microcontroller then instructs the relay to shed the specified load, displaying the shedding time on the LCD. The results indicate that the programmable interface exhibits a high dynamic response speed, highlighting its effectiveness and flexibility in load-shedding management. Comparing the cost of building the device with the long-term cost of overloading a standalone electricity generator, considering accelerated wear and tear, increased maintenance expenses, reduced operational lifespan, potential premature equipment failure, and overall decreased reliability, underscores the high-cost efficiency of adopting this device in office buildings. Additionally, implementing the system in an office building with an energy consumption of 23 kWh resulted in a discernible annual energy saving of 2.52 kWh by shedding off unnecessary loads at estimated timings.

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“…e authors in [2] use multiscenario probability models to analyze the time sequence of DG output and load demand. e authors in [3] proposed a new measurement method of wind power change rate and studied the influence of wind power change rate on the access capacity of independent wind power system.…”

Section: Introductionmentioning

confidence: 99%

Research on Optimal Access Point and Capacity of Multiscenario Wind Turbine Based on Voltage Sag

Zhang

Liu³

et al. 2022

Mathematical Problems in Engineering

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Aiming at reducing the impact on sensitive loads and the economic losses caused by voltage sags in the distribution network containing wind turbines, a multiobjective mathematical model of the optimal access point and access capacity is established from the three perspectives of the basic costs of wind turbines, the economic losses of voltage sags, and the economic losses of the power grid. A scene generation method based on the similarity of wind curve changes and a scene reduction algorithm based on DPC & k-means are proposed to solve the mathematical problem of wind turbine uncertainty. Based on the analysis of the voltage sag of the distribution network containing wind turbines, the evaluation indicator of the voltage sag depth of the bus and the evaluation indicator of the economic loss of the voltage sag of the sensitive load are proposed. The simulation results of the IEEE 33-bus system show that the reasonable access of wind turbines can help reduce the power loss and voltage sag of the distribution network, thereby ensuring the safe and economical operation of the system.

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A new measure of wind power variability with implications for the optimal sizing of standalone wind power systems

Cited by 9 publications

References 34 publications

Assessing wind energy development in Uganda: Opportunities and challenges

Assessing wind energy development in Uganda: Opportunities and challenges

Design and construction of an Arduino-based load-shedding management system for improving electricity consumption in a medium-sized creative office building

Research on Optimal Access Point and Capacity of Multiscenario Wind Turbine Based on Voltage Sag

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