著者

高木 雅昭 原 亮一 佐藤 敏之 大山 力

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.125, no.12, pp.1177-1186, 2005 (Released:2006-03-01)

参考文献数

15

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It is very effective to enhance the robustness of control over the faults occurred in power system in order to realize stable and reliable power supply. The sliding mode control based on the Variable Structure System (VSS) theory is paid attentions as one of the promising robust control scheme. In the sliding mode control, the structure of the control system is changed across the hyper plane (switching plane) in state space so that the state variables of the system are kept on the hyper plane.This paper proposes a novel control method of generator's excitation system in which the concept of sliding mode control is employed. More specifically, the proposed method switches the reference voltage used in AVR according to the sign of switching function. This paper also discusses the systematic design procedure of the optimal hyper plane. Performance and effectiveness of the proposed control method are investigated through both numerical studies and experimental tests using the single-machine infinite-bus system simulator. Both results show that the proposed control method can damp the transient swing caused by a fault effectively.

著者

高木 雅昭 岩船 由美子 山本 博巳 山地 憲治 岡野 邦彦 日渡 良爾 池谷 知彦

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 = The transactions of the Institute of Electrical Engineers of Japan. B, A publication of Power and Energy Society (ISSN:03854213)

巻号頁・発行日

vol.130, no.7, pp.651-660, 2010-07-01

参考文献数

19

被引用文献数

3 1

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In the power sector, the national government has set the goal that the introduction of PV reaches 53 million kW by 2030. However, large-scale introduction of PV will cause several problems in power systems such as surplus electricity. We need large capacity of pumped storages or batteries for the surplus electricity, but the construction costs of these plants are very high. On the other hand, in the transport sector, Electric Vehicle (EV) is being developed as an environmentally friendly vehicle. To promote the diffusion of EV, it is necessary to build infrastructures that can charge EV in a short time; a battery switch station is one of the solutions to this problem. At a station, the automated switch platform will replace the depleted battery with a fully-charged battery. The depleted battery is placed in a storage room and recharged to be available to other drivers. In this study, we propose the use of station's battery as a countermeasure for surplus electricity of PV and evaluate the economic value of the proposed system. We assumed that 53 million kW of PV is introduced in the nationwide power system and considered two countermeasures for surplus electricity: (1) Pumped storage; (2) Battery of station. The difference in total annual cost between Pumped case and Battery case results in 792.6 billion yen. Hence, if a utility leases the batteries from stations fewer than 792.6 billion yen, the utility will have the cost advantage in Battery case.