Large-scale energy storage direct current high-voltage control system and control method therefor

Abstract

The invention discloses a large-scale energy storage direct current high-voltage control system and control method therefor. The large-scale energy storage direct current high-voltage control system comprises a large-scale energy storage battery, a load/charger, a fuse protector, a dual-channel high-voltage direct current circuit breaker, a pre-charging relay, a general positive relay, a general negative relay, a low-voltage power supply, an emergency stop switch, a battery management system, a Hall sensor, a red indicating lamp, a green indicating lamp and a gold resistor. The large-scale energy storage direct current high-voltage control system is more strict in safety control, and through fusion protection and multiple safety protection of the direct current high-voltage circuit breaker, the general positive relay, the general negative relay, the emergency stop switch and the like, safety of the large-scale energy storage system can be ensured; and meanwhile, the control method forthe large-scale energy storage direct current high-voltage control system can be realized easily, and through modular setting, the generated codes can better satisfy logic control without causing faults.

Description

technical field [0001] The invention belongs to the technical field of large-scale energy storage, and in particular relates to a DC high-voltage control system for large-scale energy storage and a control method thereof. Background technique [0002] Large-scale energy storage systems mostly refer to large-scale energy storage systems based on lead-acid batteries or lithium-ion batteries. Electric energy is stored in batteries in the form of chemical energy through grid systems or wind power generation systems. The role of large-scale energy storage systems is to shave peaks and fill valleys, store electricity when electricity consumption is low, and send electricity out when electricity consumption is peak, so as to achieve the purpose of balancing power loads. The large-scale energy storage DC high-voltage control system is an important link for the large-scale energy storage battery system to connect to the grid system, wind power generation system, users, etc., and is t...

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Problems solved by technology

[0003] At present, the design of large-scale energy storage system DC high-voltage control system has problems such as single protection mode and complicated control method. In view of the fact that there are many batteries in large-scale energy storage systems, safety and control methods are very important. Therefore, it is necessary to design a DC for large-scale energy storage. High-voltage control system, equipped with simple and effective control methods to ensure the safety and operating efficiency of large-scale energy storage systems

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