Abstract
Large-scale integration of wind power is a clean alternative to power generation, but the uncertainty of wind power has become a huge dispatch challenge, which is much more serious in the northeast of China. For this reason, heat storage is configured to decouple thermoelectric constraint of CHP unit, releasing its flexibility and improving its peak-shifting ability. A random variable is introduced to represent wind power deviations firstly, then a chance constraint economic dispatch model of an aggregation unit containing wind power and CHP unit is established to explain the standby effect of heat storage on wind power uncertainty. Finally, a case study is conducted to verify the performance of the heat storage. The example results show that when configured with heat storage, the CHP unit have broadened its adjustable electrical output range, so more reserve capacity is released to cope with wind power uncertainty.
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