POWER CONVERSION SYSTEM

• Main Author: MORITA ISAO
• Format: Patent
• Language: English; Japanese
• Published: 07.10.2021
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

To provide a power conversion system which facilitates a system change in the power conversion system capable of comprising a storage battery.SOLUTION: A power conversion system comprises a D/A circuit 4 converting DC power to AC power, a first function which can converts DC power generated at solar cells 2a to 2d to AC power using the D/A circuit 4 when the DC power generated at solar cells 2a to 2d is supplied to the D/A circuit 4, a second function which can converts at least either DC power generated at the solar cells 2a to 2d or DC power outputted from storage batteries 13a to 13d to AC power using the D/A circuit 4 when the DC power outputted from the storage batteries 13a to 13d is supplied to the D/A circuit 4, and a third function which selects either the first function or the second function based on the presence or absence of a storage battery.SELECTED DRAWING: Figure 1 【課題】蓄電池を備えることが可能な電力変換システムのシステム変更を容易にする。【解決手段】電力変換システムは、直流電力を交流電力に変換するＤ／Ａ回路４と、太陽電池２ａ乃至２ｄで発電された直流電力がＤ／Ａ回路４へ供給された際には、太陽電池２ａ乃至２ｄで発電された直流電力をＤ／Ａ回路４で交流電力へ変換させることを可能にする第１の機能と、蓄電池１３ａ乃至１３ｄから出力された直流電力がＤ／Ａ回路４へ供給された際には、太陽電池２ａ乃至２ｄで発電された直流電力又は蓄電池１３ａ乃至１３ｄから出力された直流電力の少なくともいずれか一方をＤ／Ａ回路４で交流電力に変換させることを可能にする第２の機能と、第１の機能又は第２の機能のいずれか一方を蓄電池の有無に基づいて選択する第３の機能とを備える。【選択図】図１