Longyangxia Photovoltaic Power Station Inverter

How big is Longyangxia PV plant?

The Longyangxia PV plant has a capacity of 320 MW and covers a 9 km2 area. It is connected directly to one of the turbine units by a 330 kV transmission line. As one of the largest solar PV stations in the world, without the balancing power of the Longyangxia hydro turbine, this could pose a serious problem for the stability of the grid.

What is a Longyangxia coupling of PV and hydropower?

Large-scale centralised PV power is still in its infancy, and the Longyangxia coupling of PV and hydropower is the first of its kind and provides a valuable example for future hybrid systems linking variable renewables and hydropower.

How is PV power transmitted to Longyangxia hydropower station?

The PV power is transmitted to the Longyangxia hydropower station with a circuit of 330 kV, and the compensatory power composed of hydropower and PV power is transmitted to the power grid by five circuits.

Where is Longyangxia solar power station located?

The Longyangxia solar–hybrid power station is located in the arid north-west of China, in an area with vast solar resources. The reservoir supports a 1,280 MW power station, with four 320 MW turbines.

Why is Longyangxia hydropower station a good investment?

Qinghai province is dry, and water is a scarce resource, so the Longyangxia reservoir only releases water with caution. With the addition of the solar project, the hydropower station has been able to increase its annual capacity utilisation and economic efficiency.

Where is Longyangxia hydropower station located?

The Longyangxia hydropower station on the Yellow River is located in the Gonghe County of the Qinghai province with the total installed capacity of 4×320 MW. The storage capacity of the Longyangxia reservoir is 14.700 billion m 3, and it has good adjustment ability with the regulating storage capacity of 19.35 billion m 3.