Photovoltaic
Hualian optocouplers are widely used in applications of new energy field, covering core equipments such as photovoltaic inverter, BMS, and energy storage/wind energy converter, etc. Among them, the gate drive optocouplers are used in the topology circuit of inverters and converters (PCS) to drive power devices like IGBT/MOSFET and protect the main control chips and low-voltage components. The high-speed optocouplers are used for isolation of various communication interfaces (RS485, I2C, I/O port, etc); Isolation amplifiers achieve high-precision detection of input/output voltage and current in inverters and converters. Compared to other types of isolation devices(capacitive/magnetic isolators), optocouplers have significant advantages in insulation safety performance, making them more suitable for high voltage applications like optical storage.
Typical Application
ESS
Energy storage is an important technology and infrastructure for building new type of power system, which is an crucial support for achieving carbon peak and carbon neutrality goals. Taking advantage of the "dual carbon" strategy, the new energy storage industry wins its unprecedented attention and hot development opportunities. Hualian’s high-voltage optical MOS relay plays a crucial role in insulation detection as a high and low voltage switch for energy storage BMS. And the long creepage photo transistor optocouplers & high-speed(10Mbit/s) optocouplers(HPL6W147 and HPL6W157) comply to GB 4943.1-2022 with creepage distance ≥ 15mm and comply to IEC60112 with the input/output Viso up to 7500Vrms. They combine safety(CTI>600), environmental protection and ultra-thin characteristics, which are more suitable for the above 2200V system working voltage and provide solution for the high-voltage energy storage industry to adapt to the new national standards.
Typical Application
Wind Power
Wind energy, as an important form of clean and renewable energy, has broad development prospects. Wind power generation and energy storage equipments are often installed in high-altitude or nearshore areas with high system voltage, which puts higher requirements on the insulation performance and environmental adaptability of isolation devices. Hualian’s ultra-high voltage photo MOS relays and reinforced insulation optocouplers are committed to leveraging the core advantages of optical isolation, they are designed for adverse environments like cold and hot shock, vibration, unstable voltage, high altitude, high salinity, etc, to provide safe and reliable isolation solutions for high-voltage wind power and energy storage.
Typical Application