China’s First 8MW Offshore Wind Turbine, Installed by Shanghai Electric, Enters Full Load Operation

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China Underground > Science in China: News & features > China’s First 8MW Offshore Wind Turbine, Installed by Shanghai Electric, Enters Full Load Operation

Shanghai Electric, the world’s leading manufacturer and supplier of power generation and industrial equipment, today announced that it has commissioned China’s first 8MW offshore wind turbine, which is now entering operation.

The launch of the turbine, which features “black start” technology, demonstrates that the company can now undertake bulk orders in the market for 8MW offshore wind turbines. The company also unveiled its plan to further explore solutions that renewable energy-based integrated energy systems—combining wind, solar power and energy storage systems, coupled with a 5G+ industrial internet of things.

The 8MW-167 offshore turbine is the wind turbine in operation with the highest capacity in China. Compared to the 7MW-154 wind turbine, the D8 turbine produces 20% more electricity and reduces the Levelised Cost of Electricity (LCOE) by around 11%. The 8MW turbine is the outcome of an agreement inked  in March 2018 with Siemens Gamesa Renewable Energy (SGRE), which gives the company a license to produce and sell SGRE’s 8.0-167DD offshore machines in the Chinese market.

Shanghai Electric is now in a prime position to capitalize on the growing Chinese offshore turbine market, where up to 26GW may be grid-connected by the end of 2025. The company envisions creating an integrated clean energy solution that stretches the limit of releasing the potential of solar and wind power.

The 8MW offshore wind turbine features 81.4-metre blades, producing a rotor diameter of 167 meters and a swept area of 21,900 square meters. It was tested onshore at the Shantou Haojiang offshore industrial park. The demonstration project for an integrated clean energy solution also features a 4MW offshore wind turbine and 2.42MW rooftop photovoltaics. It also incorporates energy storage, charging pile equipment with a 2MWh capacity, a set of intelligent building environment control system, 5G+ industrial internet of things, microgrid control center and energy management system, among all other elements.

The solution has been modified to address conditions across the Asia-Pacific region such as typhoons, and tropical storms which could seriously damage the grid infrastructure and even lead to blackouts of the area. The restoration of the microgrid from a black start condition is therefore important to microgrid operators. With “black start”, the smart energy project provides a strong guarantee for the stable operation of the industrial park.

The Shanghai Electric Project team used lithium batteries as a supporting power source, so the Power Conversion System can regulate the voltage and frequency to the reference value. When the 8MW turbine goes into an idle state which synchronizes and connects to the microgrid bus voltage, and the wind reaches the cut in speed, the wind turbine officially starts power generation, then the team can increase the load while retaining the system frequency, until the microgrid is operating at full load mode. Thanks to the excellent grid-friendliness of the 8MW turbine and the powerful MGCC, the whole process is connected to the grid with zero impact.

 


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