EVNPECC4 successfully defended a scientific research on wind power at ministerial level (the ministry of industry and trade)

Wind power is a renewable energy source with excess potential in Vietnam. According to the Power Development Plan VIII, the technical potential for onshore wind power is about 221 GW and offshore wind is up to 600 GW. However, so far only more than 100 plants with nearly 5,000 MW installed capacity have been operating commercially. The wind power plants provide a significant amount of source capacity contributing to ensure national energy security and local economic.

Until now, the Ministry of Industry and Trade has issued Circulars, Regulations requiring technical parameters (Grid Code) of the Wind power plants connected to Power system in order to increase efficient integration capability of Renewable Energy and increase safe and stable operation of Power system. In particular, the technical requirement on the reactive power (VAR) adjustment capability meeting the power factor cosφ is one of the focused regulations.

For this reason, Power Engineering Consulting Joint Stock Company 4 (EVNPECC4) has collaborated with the Electricity Regulatory Authority to carry out a ministerial-level scientific Research: "POWER FACTOR COSΦ ADJUSTMENT FOR INCREASING INTEGRATION ABILITY OF WIND POWER PLANTS INTO POWER SYSTEM".

On November 30^th, 2023, the Research was successfully defended at the Ministry of Industry and Trade with 4/7 “Excellent” votes from the Acceptance Council, and the remaining votes were “Good”.

The Research proposes many solutions for wind power plants to ensure compliance with Grid code in the Circulars. In which, the coordination between VAR control ability of WTG and On-Load Tap Changer (OLTC) of the plant's step-up transformer, as well as equipping flexible VAR compensation devices are important solutions to meet the power factor adjustment ability of power plant as required, supporting the power grid in many different operating cases.

The Research results will enable state management agencies and system operators to review plants’ technical parameters from the initial engineering phase until operation to increase integration ability of wind power plants into the Vietnam Power System.