Robustness Assessment Method Considering Discontinuous Characteristics and its Case Study of Distributed Generation System Planning

2017 ◽  
Vol 2017.27 (0) ◽  
pp. 2208
Author(s):  
Takumu TASHIROI ◽  
Yutaka KAMOTO ◽  
Yutaka NOMAGUCHI ◽  
Kikuo FUJITA
2016 ◽  
Vol 10 (5) ◽  
pp. 678-689 ◽  
Author(s):  
Yutaka Nomaguchi ◽  
◽  
Kazune Kawakami ◽  
Kikuo Fujita ◽  
Yusuke Kishita ◽  
...  

A system of systems (SoS) is a class of complex systems that views multiple and small independent systems as part of a larger and more complex system. Because designing an SoS requires evaluation from a long-term viewpoint, it creates a large uncertainty. While researchers have proposed some robust design methods to handle the uncertainty of systems, they cannot be adopted to SoS design because of the SoS’s strong nonlinearity. This paper first discusses how difficult it is to handle uncertainty of SoS considering the SoS characteristics, and then proposes an approach of robust optimality with lattice points that is simple but plausible to sidestep the issue of nonlinearity. A case study of designing a distributed generation (DG) system, which is a typical SoS, in a Japanese dormitory town is demonstrated in order to verify the proposed approach. The results reveal that this approach helps a designer decide the appropriate amount of subsidy in terms of the robustness of DG installation.


Energy ◽  
2017 ◽  
Vol 140 ◽  
pp. 779-793 ◽  
Author(s):  
Yutaka Nomaguchi ◽  
Hiroki Tanaka ◽  
Akiyuki Sakakibara ◽  
Kikuo Fujita ◽  
Yusuke Kishita ◽  
...  

2020 ◽  
Vol 34 (5) ◽  
pp. 627-640 ◽  
Author(s):  
Shi Xianwu ◽  
Qiu Jufei ◽  
Chen Bingrui ◽  
Zhang Xiaojie ◽  
Guo Haoshuang ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1398
Author(s):  
Xinfang Wang ◽  
Rosie Day ◽  
Dan Murrant ◽  
Antonio Diego Marín ◽  
David Castrejón Botello ◽  
...  

To improve access to affordable, reliable and sustainable energy in rural areas of the global south, off-grid systems using renewable generation and energy storage are often proposed. However, solution design is often technology-driven, with insufficient consideration of social and cultural contexts. This leads to a risk of unintended consequences and inappropriate systems that do not meet local needs. To address this problem, this paper describes the application of a capabilities-led approach to understanding a community’s multi-dimensional energy poverty and assessing their needs as they see them, in order to better design suitable technological interventions. Data were collected in Tlamacazapa, Mexico, through site visits and focus groups with men and women. These revealed the ways in which constrained energy services undermined essential capabilities, including relating to health, safety, relationships and earning a living, and highlighted the specific ways in which improved energy services, such as lighting, cooking and mechanical power could improve capabilities in the specific context of Tlamacazapa. Based on these findings, we propose some potential technological interventions to address these needs. The case study offers an illustration of an assessment method that could be deployed in a variety of contexts to inform the design of appropriate technological interventions.


Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4082
Author(s):  
Luis Arribas ◽  
Natalia Bitenc ◽  
Andreo Benech

During the last decades, there has been great interest in the research community with respect to PV-Wind systems but figures show that, in practice, only PV-Diesel Power Systems (PVDPS) are being implemented. There are some barriers for the inclusion of wind generation in hybrid microgrids and some of them are economic barriers while others are technical barriers. This paper is focused on some of the identified technical barriers and presents a methodology to facilitate the inclusion of wind generation system in the design process in an affordable manner. An example of the application of this methodology and its results is shown through a case study. The case study is an existing PVDPS where there is an interest to incorporate wind generation in order to cope with a foreseen increase in the demand.


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