Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Takahiro Takamatsu"'
Autor:
Hiroshi Kikusato, Dai Orihara, Jun Hashimoto, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 458-466 (2023)
Virtual inertia (VI) control schemes implemented in inverter-based resources (IBRs) present a promising solution for mitigating the absence of inertial response in power systems after the decommissioning of synchronous generators (SGs). The interacti
Externí odkaz:
https://doaj.org/article/34dd276aab8f423490df5fbdbd0151b8
Autor:
Hiroshi Kikusato, Dai Orihara, Jun Hashimoto, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 303-311 (2023)
Grid-forming inverters (GFMIs) are promising technologies that can replace some of the capabilities traditionally provided by synchronous generators (SGs), such as inertial response. While there have been many simulation-based studies on GFMIs, perfo
Externí odkaz:
https://doaj.org/article/64adee747da24bb288c994823b2a9be4
Autor:
Hiroshi Kikusato, Dai Orihara, Jun Hashimoto, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 381-392 (2023)
Developing advanced control functions for inverter-based resources (IBRs) to replace the inertial response of retiring synchronous generators (SGs) is progressing rapidly. Although various control mechanisms have been proposed for grid-following (GFL
Externí odkaz:
https://doaj.org/article/3ae555ebe1ed4007adadd6bbc306dad5
Autor:
Hiroshi Kikusato, Dai Orihara, Jun Hashimoto, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 73-83 (2022)
Grid-forming (GFM) inverters are promising technologies in future power systems. Although the voltage-source characteristic of the GFM inverter has been validated to enhance the stabilities in low-inertia power systems, modifying protective function
Externí odkaz:
https://doaj.org/article/6783bd4399aa4a88a116b540664ce849
Autor:
Takahiro Takamatsu, Takashi Oozeki, Dai Orihara, Hiroshi Kikusato, Jun Hashimoto, Kenji Otani, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energies, Vol 15, Iss 16, p 5921 (2022)
The increase in inverter-based resources associated with the increased installation of PV sources is a concern because it reduces the inertia of the power system during peak PV generation periods. As a countermeasure to reduce grid inertia, the addit
Externí odkaz:
https://doaj.org/article/5432c938666142748a3db9a6562748db
Publikováno v:
Energies, Vol 15, Iss 4, p 1330 (2022)
Although the recent development of solar power forecasting through machine learning approaches, such as the machine learning models based on numerical weather prediction (NWP) data, has been remarkable, their extreme error requires an increase in the
Externí odkaz:
https://doaj.org/article/b67572d2df574e51b0eafdeb8301fd4d
Autor:
Dai Orihara, Hisao Taoka, Hiroshi Kikusato, Jun Hashimoto, Kenji Otani, Takahiro Takamatsu, Takashi Oozeki, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Teru Miyazaki
Publikováno v:
Energies, Vol 15, Iss 3, p 901 (2022)
Virtual inertia control is a methodology to make inverter-based resources (IBR) behave like a synchronous machine. However, an IBR cannot fully emulate the response of synchronous machine because of its low-current capacity. When the inertial respons
Externí odkaz:
https://doaj.org/article/2ad64869ccb74cb5aeb5b272569820fa
Autor:
Dai Orihara, Hiroshi Kikusato, Jun Hashimoto, Kenji Otani, Takahiro Takamatsu, Takashi Oozeki, Hisao Taoka, Takahiro Matsuura, Satoshi Miyazaki, Hiromu Hamada, Kenjiro Mori
Publikováno v:
Energies, Vol 14, Iss 14, p 4220 (2021)
Inertia reduction due to inverter-based resource (IBR) penetration deteriorates power system stability, which can be addressed using virtual inertia (VI) control. There are two types of implementation methods for VI control: grid-following (GFL) and
Externí odkaz:
https://doaj.org/article/097d09650f43488ea1c0eb6434eaa47e
Autor:
Takahiro Takamatsu, Hideaki Ohtake, Takashi Oozeki, Tosiyuki Nakaegawa, Yuki Honda, Masahiro Kazumori
Publikováno v:
Energies, Vol 14, Iss 11, p 3245 (2021)
From the perspective of stable operation of the power transmission system, the transmission system operators (TSO) needs to procure reserve adjustment power at the stage of the previous day based on solar power forecast information from global horizo
Externí odkaz:
https://doaj.org/article/bfb56754043241eea945c7881179b571
Hamilton-Jacobi-Bellman equation of nonlinear optimal control problems with fractional discount rate
This paper derives the Hamilton-Jacobi-Bellman equation of nonlinear optimal control problems for cost functions with fractional discount rate from the Bellman's principle of optimality. The fractional discount rate is described by Mittag-Leffler fun
Externí odkaz:
http://arxiv.org/abs/2211.11196