
This research focuses on the discussion of PV grid-connected inverters under the complex distribution network environment, introduces in detail the domestic and international standards and requirements on grid-connected inverter grid adaptability, and then analyzes in depth the impacts of the access point voltage changes, access point frequency changes, and access point harmonic changes on the inverters.Can grid-connected PV inverters improve utility grid stability? [pdf]

Among the energy projects funded by the People's Republic of China are the Dushanbe-2 combined heat and power (CHP) plant, the 500 kV substations "Dushanbe-500," "Sughd-500," the 500 kV power lines "South-North" (263.8 km), "Roghun-Dushanbe" (198 km), the 220 kV substations "Lolazor," "Khatlon," "Ayni," "Shahriston," "Shahrinav," and the 220 kV power lines "Lolazor-Khatlon," "Khujand-Ayni." [pdf]

This solution utilizes HuiJue’s self-developed intelligent hybrid energy control system, integrating photovoltaic power generation, lithium-ion battery storage, and emergency diesel generator backup power, helping operators transition from “heavy oil dependency” to “solar-storage-based power supply,” achieving multiple objectives of cost reduction, efficiency improvement, and green upgrading. [pdf]
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