DOI:10.1007/s40565-017-0352-6 |
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Heat and power load dispatching considering energy storage of district heating system and electric boilers |
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Net amount: 860 |
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Author:
Xianzheng HUANG1, Zhaofeng XU1, Yong SUN1,2, Yali XUE1, Zhe WANG1, Zhijun LIU2, Zhenyuan LI2, Weidou NI1
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Author Affiliation:
1.Department of Energy and Power Engineering, State Key Lab of Power Systems, Tsinghua University, Beijing 100084, China;
2.State Grid Jilin Electric Power Co., Ltd., Changchun 130021, China
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Foundation: |
The work is supported by National Key Technology
R&D Program (No. 2015BAA01B01) and State Grid
Corporation of China. |
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Abstract: |
As one of promising clean and low-emission
energy, wind power is being rapidly developed in China.
However, it faces serious problem of wind curtailment,
particularly in northeast China, where combined heat and
power (CHP) units cover a large proportion of the district
heat supply. Due to the inherent strong coupling between
the power and the heat load, the operational flexibility of
CHP units is severely restricted in winter to meet the heat
supply demand, which imparts considerable stress on the
wind power connection to the grid. To promote the integration
of wind power and enhance the flexibility of CHP
units, this paper presented a method of heat and power load
dispatching by exploring the energy storage ability of
electric heating boilers and district heating systems. The
optimization results indicate that the proposed method can
integrate additional wind power into the grid and reduce
the coal consumption of CHP units over the optimized
period. Furthermore, the thermal inertia of a district heating
system is found to contribute more to the reduction of coal
consumption, whereas the electric heating boilers contribute
to lower wind curtailment. |
Keywords: |
Wind power integration, Combined heat and
power, Electric heating boiler, Thermal inertia |
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Online Time:2018/09/22 |
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