Reasonable arrangement of the voltage system of related components in the DC screen_Chuanyang Electric Co., Ltd.
Reasonable arrangement of the voltage system of related components in the DC screen
Date of publication: 2017-11-16
Reasonable arrangements for the voltage system of the relevant components in the DC screen: 1. The nominal voltage of the DC screen system is determined according to the following requirements: a) The nominal voltage of the DC screen system dedicated to control loads should be 110V.b) The nominal voltage of the DC panel system dedicated to power load should be 220V. c) The nominal voltage of the DC panel system for the combined power supply of the control load and the power load should be 220V. 2. In the normal floating charge operation of the DC screen system, the DC bus voltage should be 105% of the nominal voltage of the DC screen system. The specific voltage value of floating charge operation is determined according to the number of batteries determined by the project. 3. Under the condition of balanced charging operation of the DC panel system, the DC bus voltage should meet the following requirements: a) The DC panel system dedicated to control load should not be higher than 110% of the nominal voltage of the DC panel system.b) The DC panel system dedicated to power load should not be higher than 112 of the nominal voltage of the DC panel system.5%. c) The DC panel system with combined power supply of the control load and the power load should not be higher than 110% of the nominal voltage of the DC panel system.4. In the case of accidental discharge operation of the DC panel system, the voltage at the outlet end of the battery pack should meet the following requirements: a) The DC panel system exclusively for load control should not be less than 85% of the nominal voltage of the DC panel system.b) The DC panel system dedicated to power load should not be less than 87% of the nominal voltage of the DC panel system.5%. c) The DC panel system with the combined power supply of the control load and the power load should not be less than 87% of the nominal voltage of the DC panel system.5%.5. Set up a silicon step-down device to control the DC panel system with mixed power supply of load and power load: a) Under normal floating charge operation, the control bus voltage should not be higher than 105% of the nominal voltage of the DC panel system, and the power bus voltage should Not higher than 110% of the nominal voltage of the DC screen system. b) In the case of balanced charging operation, the control bus voltage should not be higher than 110% of the nominal voltage of the DC panel system, and the power bus voltage should not be higher than 115% of the nominal voltage of the DC panel system. c) In the case of accidental discharge operation, the outlet voltage of the battery pack should not be lower than 87% of the nominal voltage of the DC screen system.5%.DC screen Source of this article: Chuanyang Electric Co., Ltd. http://www.chyele.com
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