Based on the accumulation of Huichuan technology in the field of power electronics for many years, Huichuan Technology released a new generation of high-power series solution on the site for the first time, which uses the independent product PAC (large PLC with display and control) in the control field as the core controller, combined with energy management optimization and high-speed bus to achieve 20ms high-speed and stable response of the system.

▲ System stability: In the series of integrated machine solution with 32 stable parallel capabilities, communication using ring network architecture, a single communication failure does not affect the operation of other equipment, higher redundancy.

▲ Communication friendly: the upper layer communication management is simple, support IEC61850 dual network 4 network port access, ESGU can achieve interface convergence, protocol conversion, data collection, information storage, centralized monitoring and other functions of the system equipment, unified external communication export, reduce the number of EMS/ co-control communication nodes of large energy storage station.

▲ Quick response: PCS control network adopts EtherCAT real-time network communication, and the communication cycle is less than 2ms. The real-time bus can realize US-level jitter and NS-level synchronization error between PCS. With PCS single machine full power turnover <20ms, the whole machine response delay is lower, the response rate is higher, the adjustment error is smaller, and the K value is optimized in all dimensions to increase the benefit of frequency modulation.

▲ Convenient operation and maintenance: InoProShop, the PAC background software, can scan each device in the network, sense the changes and status of the system network architecture, and make the hardware configuration visible

PCS+ battery full liquid cooling integrated design, system cycle life increased by 20%, winter startup time saved 1 hour; Three-phase four-wire direct Internet access, no isolation variable access, system efficiency is greater than 91%; Battery supports PACK-level gas + water fire protection to prevent reignition; The EMS has multiple built-in logics to meet different scenarios.

Port new energy DC power distribution scheme

— Open a new paradigm of light hydrogen storage

The scheme is connected to a 10kV power supply system, converted to a low-voltage 400V system through a step-down transformer, and a stable DC bus system is established by adopting the rectifier unit of the converging technology. The energy of the whole system is coupled and interactive on the DC bus.

System value:

■ DC power distribution solution + energy control system realizes the comprehensive utilization of light, storage and hydrogen energy, improves energy utilization efficiency, and realizes the “direct and soft light hydrogen storage” between different energy sources.

■ For the impact type of port load, through the DC distribution, the potential energy recovery is directly used, which can reduce the configuration capacity of the grid.

■ Through direct bus coupling, on-site energy feedback and reuse can be achieved, greatly reducing port power consumption.

■ Energy storage and hydrogen energy are connected to the system through comprehensive energy control, which can smooth load fluctuations, and improve the economy of the port power supply system by running the control strategy of peak cutting and valley filling.

■ Through the way of DC power distribution, to achieve the redundancy of electricity between different storage yards.