成果報告書詳細
管理番号20120000000333
タイトル*平成22年度中間年報 蓄電複合システム化技術開発 要素技術開発 次世代サービスステーションにおける蓄電・充電統合システムの研究開発(3)
公開日2012/6/27
報告書年度2010 - 2010
委託先名国立大学法人東京工業大学
プロジェクト番号P10008
部署名スマートコミュニティ部
和文要約和文要約等以下本編抜粋:
1. 共同研究の内容及び成果等
A) 背景および課題
A.1 PVの導入拡大と逆潮流問題
 現在の導入シナリオでは、2015年以降にPVの導入容量が10GWを超え、逆潮流問題が顕在化することが予想されている。
英文要約Title: R&D of Practical and Integrated Energy Storage Systems for Smart Community. Elemental Technology Development. Development of Battery and Charger Integration System (BCIS) at Next Generation Service Station (FY2010-FY2011) FY2010 Annual Report
In the current dissemination scenario, PV capacity will be over 10GW, and we will see a problem of reverse power flow. It says batteries should be installed in suitable demand place with appropriate capacity. The batteries reduce difference between the demand peak and PV output peak. Based on the Survey on Time Use and Leisure Activities, use patterns of 58 million of autos were estimated. By the result, EV’s charging demand was estimated. Because most of autos are used for commuting, demand peaks are at morning and early-evening. In the case of 2.2 million EVs in 2020, electricity demand at morning is 1 GW. 500 km per one charge from NEDO’s roadmap assuming in 2020 is longer than travel distance in a month. On the other hand, to charge full takes 20 hours. Because this is difficult to charge in a night, charging behavior will become diverse. If quick charge cost is low, people use it. If not, people charge it at their home, and they use quick charge system sometimes. Since PV and EV will become widely used, demand fluctuation will be large. However, EV and PV are decentral. If they communicate each other, and reduce fluctuation, they can reduce effect to upper grid. The quick charger is fluctuating electricity demand. If it have battery, it can reduce fluctuation of PV, and maybe placed as local infrastructure. Based on BCIS demand research, a relationship between BCIS’s battery capacity, number of charging station and average charging time was estimated by simulation. Based on a demand research by JX Nippon Oil & Energy Corporation, battery capacity for BCIS was estimated assuming next research topic of spillover effect focusing in year 2020. A Service Station, SS with 2 to 3 quick chargers was calculated. The quick charger, QCH may reach to 150kW. This is much larger than current electricity capacity (50kW) of SS. On the other hand, PV’s high penetration in community should make problem of reverse power flow. The BCIS can be positioned as local infrastructure for averaging electricity fluctuation of the QCH and the PV’s reverse power flow. The BCIS with 60 to 300 kWh battery will reduce wait time and increase convenience of EV and the QCH. From the next fiscal year, how much the BCIS’s battery effect fluctuation reduction of the PV’s reverse power flow will be evaluated.
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