IEEE Power & Energy Magazine - November/December 2015 - 46

Based on the future VG location, power grid structure,
and electric load growth trend, strengthening the interconnection
of interregional power grids is of great importance.

commissioning. That time period is three to four years for
power grid projects and even longer for interregional projects. (See Figure 4.) Therefore, power grid planning needs
to be studied and conducted in advance based on the future
wind generation planning. Wind projects should also be
coordinated accordingly. The serious wind curtailment in
Gansu, West Inner Mongolia, and Hebei, due to time lag for
power grid transmission project construction, can then be
avoided in the future.
To solve and effectively control the serious air pollution issues that frequently occur in the country, the Chinese
government approved 12 interregional transmission lines in
May 2014, which will be put into operation in 2020. These

lines (Figure 5) can transport wind power in northwest and
Inner Mongolia together with other types of generation. An
initial analysis showed that the completion of these projects
will greatly reduce the wind curtailment in the Three North
area and facilitate future wind development in this area. But
seen from the 13th Five-Year Plan (2015-2020) of Wind in
Gansu, West Inner Mongolia, and northeast China, these
transmission corridors are insufficient to integrate wind into
these areas. New transmission projects based on the wind
power planning in these areas are needed for the coordination of wind and power grid planning.
For power systems in China, pumped hydro is the most
effective and economical measure to facilitate wind and solar

Coal

Hydro

Wind

PV

dc Transmission Lines for
Air Pollution Control
ac Transmission Lines for
Air Pollution Control
Other Transmission Lines
Planned

figure 5. Twelve transmission lines for air pollution prevention, as well as Jiuquan and Zhundong HVdc projects.
46

ieee power & energy magazine

november/december 2015



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - November/December 2015

IEEE Power & Energy Magazine - November/December 2015 - Cover1
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IEEE Power & Energy Magazine - November/December 2015 - Cover3
IEEE Power & Energy Magazine - November/December 2015 - Cover4
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