Vanadium energy storage system

Megawatt vanadium battery energy storage system

The megawatt vanadium battery energy storage system consists of single or multiple vanadium batteries, vanadium battery management system (BMS), power conversion system (PCS) and central control system. The vanadium battery management system is operated and controlled by a programmable logic controller (PLC), which manages the vanadium battery internally. Power conversion system (PCS), including bidirectional inverter, transformer, grid-connected switchgear, realizes bidirectional power transmission between vanadium battery and power grid, and is the key equipment for connecting vanadium battery and power system. Central Control System (CCS) integrates man-machine interface, algorithm control part, communication control part and drive control part, and is responsible for monitoring the operation of the whole system.

feature:

◆Through the PCS standard power bus, it can be directly connected with the power grid, wind power generation, photovoltaic power generation, electrical equipment, etc.

◆With automatic control function, it can automatically charge or discharge according to the battery power and the user's power consumption.

◆Dual-mode automatic operation. In normal mode, the energy storage system is connected to the grid. When the AC side grid fails, the energy storage system automatically disconnects from the grid, switches to the off-grid operation mode, and automatically connects to the grid after the grid fault is removed.

◆Power grid voltage monitoring, providing dynamic active and reactive power support, which can solve many power grid power quality problems (when connected to the grid) such as grid voltage fluctuations, swells and dips.

◆ Equipped with standardized communication interface, realize remote signaling, remote measurement, remote control, remote adjustment, and transmit data to the remote control terminal in real time, can remotely check the battery power and working status, and can realize remote control of the battery to start and stop, charge and discharge state conversion, Power adjustment and other functions.

◆Intelligent control of the system, automatic daily maintenance; in the event of overvoltage, undervoltage, overcurrent high temperature, low temperature, leakage, abnormal communication, etc., the battery system will alarm and transmit data to the remote control terminal.

application:

◆Suitable for medium and large wind power, photovoltaic, wind-solar hybrid power generation and energy storage systems, used to form regional power grids, and provide clean and high-quality power for urban communities and towns.

◆Smooth output, FM and AM for medium and large wind power, photovoltaic and wind-solar hybrid power generation.

composition:

Every 15 vanadium batteries form a 750V200A300kW4h vanadium battery pack, each vanadium battery pack and a single-phase bidirectional inverter DC/AC form a single-phase 385V390A150kW8h inverter unit, there are 27 inverter units in total, and the single-phase inverter is controlled by the modulation ratio Inverter DC/AC output voltage.