電気学会論文誌B(電力・エネルギー部門誌)
Online ISSN : 1348-8147
Print ISSN : 0385-4213
論文
将来断面における太陽光発電の大量導入に伴う信頼度面の諸課題
—WEST10機系統における振動発散型安定度面の検討—
奥本 芳治餘利野 直人佐々木 豊造賀 芳文藤田 将輝山中 敏裕
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132 巻 (2012) 2 号 p. 171-180

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Mega penetration of photovoltaic power generations (PV) will be introduced in future electric power systems, coping with environmental problems such as global warming and energy exhaustion. The authors have pointed out that difficulties will arise in performing the N-1 security standard if increase in uncertainties cannot be avoided caused by the PV penetration. Then, we have proposed a new concept of “robust power system security” together with the several conditions to be satisfied to guarantee the N-1 security standard under the uncertainties. In this paper, (1) a model of uncertainties by PV generation is proposed based on the robust power system security; a method for proper parameter selection is also provided. Then, (2) the influence on the stability by the PV and load disconnection from the power system is studied through simulation using the model system; (3) the effect of PV's fault ride through (FRT) on the stability is investigated as well as dynamic voltage support (DVS). Finally, it is shown that (4) complicated burden tasks will be considerably increased in power system operation planning and real time operation in the future circumstance by the mega penetration of PV.

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