PV Magazine International intl_tech D1

发布：2026-06-10 · 事件：2026-06-10

Chinese power electronics specialistKehuahas launched a 465 kW string inverter at SNEC 2026 in Shanghai, targeting utility-scale solar projects in desert and offshore PV applications. The company pres...

Chinese power electronics specialistKehuahas launched a 465 kW string inverter at SNEC 2026 in Shanghai, targeting utility-scale solar projects in desert and offshore PV applications. The company presented the product as a next-generation high-power string inverter for large ground-mounted solar plants in harsh environments. It is based on a 1,600 V DC architecture and supports larger sub-array configurations than conventional 1,500 V systems, according to the company. Kehua said the inverter supports up to 5.6 MW sub-arrays, compared with around 3 MW in many conventional designs. It also features an N+2 long-string configuration, allowing two additional modules per string. The company said the combination of higher voltage, longer strings and larger sub-arrays can reduce DC cable usage, equipment count and overall balance-of-system costs by around CNY 0.037 ($0.0055)/W. The product targets developers seeking higher power density and lower system costs as large-scale PV plants move toward larger block designs. Kehua said the 1,600 V DC platform can also broaden the MPPT operating range and improve energy yield under low-temperature, high-voltage conditions. The inverter has an IP66 protection rating and C5 anti-corrosion protection, making it suitable for operation in sandy, humid, coastal and high-salt environments. Kehua said it can operate at full load at 45 C and is designed for deployment at altitudes of up to 5,000 m without derating. The inverter includes a multilayer safety architecture with string disconnection, insulation monitoring, lightning protection and terminal temperature monitoring. These functions are intended to detect electrical risks earlier, isolate faults more quickly and reduce fire and maintenance risks in large PV plants. For operation and maintenance, the inverter is equipped with L4-level string IV curve scanning, air-duct self-cleaning and health-status monitoring. Kehua said the system can identify more than 20 types of module-side faults and reduce manual inspection requirements. A fan reverse-cleaning function removes dust and debris from the air channel, which is particularly relevant for desert and high-dust environments. The inverter also features native grid-forming capability, according to the manufacturer. It is designed to operate in strong and weak grids, provide virtual inertia and damping, and support voltage and frequency stability in projects with high renewable penetration. Kehua said the product has completed laboratory validation and outdoor testing. Small-batch trial production is expected in the third quarter of 2026, with large-scale production and deliveries planned for the fourth quarter. Initial shipments are expected to focus on China’s large desert renewable energy bases, as well as overseas markets including Europe and the Middle East. This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact:[email protected].