In response to the issue of adapting to the dynamic characteristics of distributed photovoltaics and their impact on energy metering, this article first simulates and analyzes the harmonic and voltage fluctuations cau...
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Over the academic year 2022-23, we discussed the teaching of software performance engineering with more than a dozen faculty across North America and beyond. Our outreach was centered on research-focused faculty with ...
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ISBN:
(纸本)9798350364613;9798350364606
Over the academic year 2022-23, we discussed the teaching of software performance engineering with more than a dozen faculty across North America and beyond. Our outreach was centered on research-focused faculty with an existing interest in this course material. These discussions revealed an enthusiasm for making software pertimmance engineering a more prominent part of a curriculum for computer scientists and engineers. Here, we discuss how MIT's longstanding efforts in this area may serve as a launching point for community development of a software performance engineering curriculum, challenges in and solutions for providing the necessary infrastructure to universities, and future directions.
The energy supply framework has transformed over the recent time from tradition to a more flexible energy topology. This has resulted in the introduction of using distributed generation technologies to improve the sus...
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ISBN:
(纸本)9798350320886
The energy supply framework has transformed over the recent time from tradition to a more flexible energy topology. This has resulted in the introduction of using distributed generation technologies to improve the sustainability of energy supply. However, the introduction of distributed generation for grid-integration has technical disadvantages, such as increase in power and voltage losses. In this paper, a technique based on discrete wavelet transform (DWT) and the genetic algorithm ( GA) is proposed to determine the optimal location and size of the DGs to be connected into the grid for power loss minimisation and voltage improvement. The technique is tested using the 33 and 69 IEEE test bus system. The results obtained show that the power losses are significantly reduced with an increase in the voltage profile.
The main goal of this research is to look at how smart grid can be implemented and automatic billing can be done by leveraging blockchain technology. It transforms the conventional way of managing energy using smart c...
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ISBN:
(纸本)9798350391558;9798350379990
The main goal of this research is to look at how smart grid can be implemented and automatic billing can be done by leveraging blockchain technology. It transforms the conventional way of managing energy using smart contracts. Self-executing contracts on blockchain can change the traditional approaches towards billing within the smart grid infrastructure. Our focus is to reduce manual work and minimal intervention by third parties. Smart contract approach ensures that billing is more efficient, timely and accurate. Blockchain technology is also mentioned in this analysis, which has made it possible to record transactions in an immutable manner using a distributed ledger. This transparency enhances trust-building among stakeholders as well as responsible action within the system. Lastly, the cryptographic mechanisms underlying blockchain provide transaction integrity and confidentiality, thus improving its security and reducing the risks of breaching or unauthorized access of data. The main objective of this research work is to show how blockchain-based systems for billing in smart grids can offer a more advanced foundation for energy management. They are very efficient, secure and open unlike any other option within that industry. Therefore, through blockchain technology and smart contracts can be used by major stakeholders in the energy industry to improve their billings and streamline operations that they do. Henceforth, this sets grounds for a sustainable and elastic future of energy.
The increase in usage and interest in blockchain technology has shown its benefits and potential uses and its drawbacks and issues. The amount of time it takes to mine, make transactions, and perform other functions i...
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ISBN:
(纸本)9798350333398
The increase in usage and interest in blockchain technology has shown its benefits and potential uses and its drawbacks and issues. The amount of time it takes to mine, make transactions, and perform other functions is one of the several scalability issues being analyzed. This paper presents a quintessential parallel multiprocessor approach to implement proof of work distributed blockchain to increase the number of transactions and lower mining latency and cost by applying vertical scaling, consensus, and reduced overheads. The proposed approach is providing promising results by increasing the number of transactions per second (tps) and reducing latency for mining. The distributed approach aims to partition blocks among processes, where processes work for blocks, and each block holds a distinct part of the ledger of the blockchain. The transaction process involves validation and reaching a consensus when the storage location is available only to the intended block. The proposed approach is achieving scalability. It is observed that the given approach has low latency, high throughput, and lower cost in comparison to some existing approaches.
Heterogeneous systems, consisting of CPUs and GPUs, offer the capability to address the demands of compute- and data-intensive applications. However, programming such systems is challenging, requiring knowledge of var...
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ISBN:
(纸本)9783031506833;9783031506840
Heterogeneous systems, consisting of CPUs and GPUs, offer the capability to address the demands of compute- and data-intensive applications. However, programming such systems is challenging, requiring knowledge of various parallel programming frameworks. This paper introduces COMPAR, a component-based parallel programming framework that enables the exposure and selection of multiple implementation variants of components at runtime. The framework leverages compiler directive-based language extensions to annotate the source code and generate the necessary glue code for the StarPU runtime system. COMPAR provides a unified view of implementation variants and allows for intelligent selection based on runtime context. Our evaluation demonstrates the effectiveness of COMPAR through benchmark applications. The proposed approach simplifies heterogeneous parallel programming and promotes code reuse while achieving optimal performance.
In demanding environments like space, avionics or robotics, computing systems face challenges affecting their lifetime and reliability. Traditional approaches like static hardware redundancy prove ineffective for mode...
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ISBN:
(纸本)9798350364613;9798350364606
In demanding environments like space, avionics or robotics, computing systems face challenges affecting their lifetime and reliability. Traditional approaches like static hardware redundancy prove ineffective for modern, complex systems. This work presents an overview of self-aware, reliable, and reconfigurable computing systems leveraging Field Programmable Gate Arrays (FPGAs). Despite increasing application demands, FPGA resources remain limited, posing challenges in implementing static redundancy alongside high performance and energy efficiency. Addressing these challenges requires innovative resilience concepts, emphasizing adaptability, reliability, and energy optimization. This paper surveys existing literature and identifies open challenges in achieving resilient computing systems for demanding applications.
Performing machine learning inference at the network edge, named Edge Inference, showing benefits like low latency, reduced data traffic, and improved user privacy, has attracted massive attention. computing Power Net...
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The charging of electric vehicles (EVs) via common DC bus charging infrastructure based on hybrid renewable energy sources such as solar photovoltaic (PV) and fuel cell is presented here. The requisite to incorporate ...
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The charging of electric vehicles (EVs) via common DC bus charging infrastructure based on hybrid renewable energy sources such as solar photovoltaic (PV) and fuel cell is presented here. The requisite to incorporate renewable energy based distributed energy resources (DERs) is attributed to the escalating concern for decarbonisation with improved power quality requirements. Furthermore, the bidirectional flow of power enables the charging/discharging of EVs during the grid presence/absence modes of operation. In addition, the utilization of common DC bus charging mechanism for EVs, facilitates fast charging capability at higher voltage levels. The satisfactory operation during the grid availability/unavailability is attained through the current and voltage based control mechanisms, along with the seamless transition capability via switching (STS-1/0) of the static transfer switches. Furthermore, in compliance with the IEEE standards, the power quality (PQ) improvement is obtained with the utilization of an adaptive comb-filter based current control during the grid-tied mode of operation. The need for improving PQ, stems from the fact that an uninterrupted supply is essential to the critical loads along with an improved power quality. Thus, for validation and corroboration of the system behavior, its performance is authenticated during weak grid conditions, in conjunction with grid connected/islanded modes of operation.
Microgrids are low-voltage distribution network which comprise of controllable loads and distributed energy resources (DERs) that can be used in an isolated or grid-connected mode. The microgrid energy management syst...
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