成果報告書詳細
管理番号20110000001553
タイトル*平成21年度中間年報 大規模電力供給用太陽光発電系統安定化等実証研究 稚内サイトにおける大規模電力供給用太陽光発電系統安定化等実証研究
公開日2012/8/9
報告書年度2009 - 2009
委託先名北海道電力株式会社 稚内市
プロジェクト番号P06005
部署名新エネルギー技術開発部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果等 1?1 MW級の大規模PVシステムの構築・系統安定化対策技術の開発 (1)大規模PVシステムの構築
1) 第4期工事として、PVモジュール1,020kWおよびPV用PCSの設置工事を実施し、5,020kWの発電所として運用を開始した。
2) 第4期のPVモジュールのうち、770kW分は第3期までの研究成果である大規模PVシステム構築の検討結果を踏まえ、実績のある結晶系モジュールの中から最小コストとなるものを選定、さらに250kW分は今後の普及拡大が見込まれる新型タイプの適用性評価を目的として、コスト比較から化合物系モジュールを選定した。
3) 第4期では、第3期までの発電実績および積雪影響等の詳細分析結果に基づき、より発電量の期待できる傾斜角30度の架台を採用し、さらに傾斜角を下げたことによる積雪荷重増加に伴う架台コストの増加を抑制するため、架台形状の最適化を図った。また、より効率的な設備構築について検討を行なうため、1軸可動架台(20kW)を設置し、発電量の増加効果、さらに積雪時および強風時の対策としての有効性について評価、検討を実施している。
英文要約Title: Verification of Grid Stabilization with Large-scale PV Power Generation Systems/ Verification of Grid Stabilization with Large-scale PV Power Generation Systems in Wakkanai site (FY2006-2010) FY2009 Annual Report
This is an annual report of FY2009 that contains the recent results of each research topic. In FY2009, 1,020kW of PV modules including a 20kW of 1-axis tracking system were constructed. The planned final system, 5,020kW of PV modules and a 1.5-MW NAS battery system are in operation with connecting to 33kV power grid. For determination of PV output characteristics, 10 kinds of 10kW PV modules were installed in 2007. Each performance data were collected under variable conditions including abundant snowfall and winter temperatures in Wakkanai site. The research results will conduct guidelines for selecting PV modules in cost effective and efficient, in particular, at the cold latitudes. In suppressing output fluctuations from PV system, for more efficient and effective operation of the NAS battery, several control algorithms of battery system for smoothing PV output were developed and examined in field test. It is expected to achieve the target of this project, more than 80% of fluctuation reduction. This project also studies methods for scheduled operation. In the scheduled operation, the station output is determined based on the PV output power estimated from the solar radiation forecast data. Mismatch between the scheduled station output and actual PV output are absorbed by the NAS battery. Various forecast techniques and meteorological observation data are applied to refine the accuracy of the radiation forecasts. We are also developing optimal planning methods that are robust against the forecasting error. In this method, probabilities of radiation forecast that are calculated from comparison between actual data and forecasted data in past days are used to modify the operation plan. In the harmonics generated from power station, although more than twenty PCS units were installed, our field harmonics monitoring and analysis showed that the harmonics inflow current from the power station is much lower than the allowable limit. Although no serious impacts of harmonics can be observed, field harmonics monitoring will be conducted continuously for further system expansions. For develop a simulation technology, calculation methods and input and output data of each topic were determined. For create a guidebook with guidelines for implementing large-scale PV power generation systems, we are studying each items in detail and writing drafts.
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