PHOTOVOLTAIC POWER GENERATION FACILITY SYSTEM

• Main Authors: HOSHINO YOSHIHIRO, MINETA KIJIRO
• Format: Patent
• Language: English; Japanese
• Published: 07.03.2016
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

PROBLEM TO BE SOLVED: To provide a photovoltaic power generation facility system capable of reducing a construction cost etc. considering a tremendous steel tower construction cost in conventionally installing a steel tower distribution line of 66000 V AC born by a power generation business company in the case of performing extra-high-voltage interconnection in the vicinity of a photovoltaic power generation facility.SOLUTION: DC power generated in a solar panel 1 is converted to AC power (for example, 270 V) by a power conditioner 3 and is raised to 22000 V by an extra-high-voltage transformer 11. The raised power is collected by an extra-high-voltage panel 12 and an extra-high-voltage power collection panel 13 and is transmitted from an extra-high-voltage feeder panel 14 to an extra-high-voltage panel 21 of an extra-high-voltage interconnection substation 20. The transmission is performed by using an extra-high-voltage line 15 laid on power poles installed along a public road 16 or installed underground. Installation of the extra-high-voltage interconnection substation 20 in the vicinity of an extra-high-voltage interconnection point does not require a steel tower distribution line to be led to a power generation facility.SELECTED DRAWING: Figure 1 【課題】 従来では、太陽光発電設備の近傍で特高連係させる場合には、発電事業者の負担でAC66000Vの鉄塔配電線を設置しているが、鉄塔の建設コストが膨大となってしまうことに鑑みて、建設コスト等の低減を図ることができる太陽光発電設備システムを提供する。【解決手段】 ソーラーパネル１で発生した直流電力をパワーコンディショナ３で交流電力(例えば、270V)に変換し、特高変圧器11で22000Vに昇圧する。これを特高盤12、特高集電盤13で集電して特高フィーダー盤14から特高連係変電所20の特高盤21へ送電する。このとき、公道16に沿って設置した電柱に架設したり、地下埋設で布設した特高線15を利用する。特高変電所20は特高連係点の近傍に設置することで、発電設備まで鉄塔配電線を引き込むことを要しない。【選択図】 図１