A Multi-Objective Optimization Approach towards a Proposed Smart Apartment with Demand-Response in Japan

Susowake, Yuta; Masrur, Hasan; Yabiku, Tetsuya; Senjyu, Tomonobu; Howlader, Abdul Motin; Abdel‐Akher, Mamdouh; Hemeida, Ashraf Mohamed

doi:10.3390/en13010127

Cited by 23 publications

(12 citation statements)

References 21 publications

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“…The difference is that in building condominiums, there are other factors that do not appear so often in home condominiums, such as penthouses, elevators, pumps, communication interference between apartments of different floors or buildings, basements and other peculiarities. In this case, some studies point out the implementation of communication technologies that allow avoiding this interference and promoting communication within and between buildings and floors [82]. In addition, consumption can be collected in centralized locations, which allows a standardization of the way of collecting and sending information to each apartment.…”

Section: Advanced Metering Infrastructure (Ami)mentioning

confidence: 99%

HyDSMaaS: A Hybrid Communication Infrastructure with LoRaWAN and LoraMesh for the Demand Side Management as a Service

et al. 2021

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Seeking to solve problems in the power electric system (PES) related to exacerbated and uncontrolled energy consumption by final consumers such as residences, condominiums, public buildings and industries, electric power companies (EPC) are increasingly seeking new information and communication technologies (ICTs) to transform traditional electric power distribution networks into smart grids (SG). With this implementation, PES will be able to remotely control electric power consumption as well as monitor data generated by smart meters (SM). However, Internet-of-Things (IoT) technologies will enable all this to happen quickly and at low cost, since they are low-cost devices that can be deployed quickly and at scale in these scenarios. With this in mind, this work aimed to study, propose, and implement a hybrid communication infrastructure with LoRaWAN and LoraMesh for the demand-side management as a service (HyDSMaaS) using IoT devices such as long range (LoRa) to provide an advanced metering infrastructure (AMI) capable of performing all these applications as a service offered by EPC to end consumers. Additionally, services such as demand-side management (DSMaaS) can be used in this infrastructure. From the preliminary results it was found that the LoRaWAN network achieved a range of up to 2.35 km distance and the LoRaMESH one of 600 m; thus, the latter is more suitable for scenarios where there is little interference and the SMs are at long distances, while the other is used for scenarios with greater agglomeration of nearby SMs. Considering the hybridized scenario between LoraWAN and LoRaMESH, it can be seen that the implementation possibilities increase, since its range was approximately 3 km considering only one hop, and it can reach 1023 devices present in a mesh network. Thus, it was possible to propose the actual implementation of LoRaWAN and LoRaMESH protocols as well as the hybridization of the two protocols for HyDSMaaS. Additionally, the results obtained are exclusively from Radioenge’s LoRa technology, which can be further improved in the case of using more powerful equipment.

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Section: Advanced Metering Infrastructure (Ami)mentioning

confidence: 99%

HyDSMaaS: A Hybrid Communication Infrastructure with LoRaWAN and LoraMesh for the Demand Side Management as a Service

et al. 2021

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“…Several studies involving optimal geolocation [25], multivariate statistics [26,27] and multiobjective problems [28][29][30] were carried out recently. To show another application of maxmin multiobjective problems, we consider in this work the best situation of a tourism rural inn considering several measured climate variables.…”

Section: Conflicts Of Interestmentioning

confidence: 99%

Exact Solutions to the Maxmin Problem max‖Ax‖ Subject to ‖Bx‖≤1

et al. 2020

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In this manuscript we provide an exact solution to the maxmin problem max ∥ A x ∥ subject to ∥ B x ∥ ≤ 1 , where A and B are real matrices. This problem comes from a remodeling of max ∥ A x ∥ subject to min ∥ B x ∥ , because the latter problem has no solution. Our mathematical method comes from the Abstract Operator Theory, whose strong machinery allows us to reduce the first problem to max ∥ C x ∥ subject to ∥ x ∥ ≤ 1 , which can be solved exactly by relying on supporting vectors. Finally, as appendices, we provide two applications of our solution: first, we construct a truly optimal minimum stored-energy Transcranian Magnetic Stimulation (TMS) coil, and second, we find an optimal geolocation involving statistical variables.

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“…This kind of optimization has infinite amount of good solution if it would be on the Pareto front [19]. For multi objective optimization Pareto diagram is a highly preferred option [19][20][21][22][23][24].…”

Section: Pareto-vector Length Optimizationmentioning

confidence: 99%

Heat Sink Shape and Topology Optimization with Pareto-Vector Length Optimization for Air Cooling

Szodrai

2020

Energies

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Localized air cooling can be used for various purposes, e.g.: electronic equipment cooling, and air conditioning. The paper emphasizes that the connection between the air-flow and cooling has to fulfill a contradictory requirement (low pressure loss and effective cooling). The cooling and the pressure loss are dependent on the moisture content of the air flow. In the study, heat sink geometries were examined at various fresh air relative humidity, temperature and flowrates with commercially available simulation software (Ansys Fluent). The most favorable option was chosen by Pareto-vector length optimization. For optimization, head loss coefficient and temperature coefficient were used. Firstly, 108 cases were made to evaluate the sensitivity of the optimization parameters. Secondly, on 40 finned heat sinks with different fin width and quantity optimization were made. Thirdly, a prototype was made from the favorite solution where the performance was evaluated. For the measurement two type: TEC1-12706 thermoelectric cooling devices (TEC) were used for cooling. The difference between the measured and the modelled cooled air temperatures was 3%.

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A Multi-Objective Optimization Approach towards a Proposed Smart Apartment with Demand-Response in Japan

Cited by 23 publications

References 21 publications

HyDSMaaS: A Hybrid Communication Infrastructure with LoRaWAN and LoraMesh for the Demand Side Management as a Service

HyDSMaaS: A Hybrid Communication Infrastructure with LoRaWAN and LoraMesh for the Demand Side Management as a Service

Exact Solutions to the Maxmin Problem max‖Ax‖ Subject to ‖Bx‖≤1

Heat Sink Shape and Topology Optimization with Pareto-Vector Length Optimization for Air Cooling

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