著者

神谷 淳文 大村 愛花 佐藤 匠悟 白崎 圭亮

出版者

一般社団法人 電気学会

雑誌

電気学会誌 (ISSN:13405551)

巻号頁・発行日

vol.141, no.1, pp.36-39, 2021-01-01 (Released:2021-01-01)

参考文献数

1

---

1.はじめに電気・機械系の大学や大学院を卒業した後の就職先としてはさまざまなものがある。例えば,電気機械製品を製作しているメーカに焦点を当てた場合,大きくは発電設備から,小さくはスマートフォンの電子回路まで,現代の暮らしを豊かにするための製品作りが行われている。これらの

著者

白崎 圭亮 北内 義弘

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)

巻号頁・発行日

vol.137, no.4, pp.265-273, 2017-04-01 (Released:2017-04-01)

参考文献数

16

被引用文献数

7

---

It is difficult to assess how transient stability of trunk transmission power systems may be affected by a system fault under the conditions created by the widespread use of renewable energy (RE) because it may greatly differ depending on power system conditions such as the operation statuses of generators and RE, and also on whether or not any RE is tripped after the fault, for example. Then we developed photovoltaics (PV) generation model for transient stability analysis and defined a scenario for the widespread use of RE in order to perform an analysis using this power system model. We confirmed that this made it easy to identify the impacts on transient stability and their causes even when different power system conditions contribute in a complex manner.

著者

白崎 圭亮 岡田 有功 佐野 憲一朗 岩月 秀樹

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)

巻号頁・発行日

vol.138, no.8, pp.651-658, 2018-08-01 (Released:2018-08-01)

参考文献数

11

被引用文献数

3

---

Flicker may be caused by “frequency feedback method with step injection of reactive power” installed in PCS which is generally used as grid-connected inverter in Japan. Therefore, in this paper, characteristics of the flicker were investigated by experiments with actual PCS in single phase circuit. Furthermore, effective means for suppressing the flicker was considered by taking the cause of occurrence of flicker into account. Moreover, it was clarified the differences among PCSs on flicker using multiple actual PCSs. In conclusion, gain of frequency feedback function should be reduced as one of effective means to avoid flicker.