The Effects of Air Conditioner Load on Voltage Stability of Urban Power System
نویسندگان
چکیده
Based on reactive power-voltage characteristics analysis of air conditioners, the effects of air conditioner load on voltage stability of an urban power system are investigated in this paper. Indexes for evaluating bus voltage security are proposed, and static voltage stability analysis method is adopted. The computational analysis of a real urban power system in East China shows that air conditioner load has a bad impact on voltage stability of an urban power system. With an increase in air conditioner load, bus voltage security and voltage stability of the system decrease. So measures should be taken to prevent voltage instability, especially for the system which has small loading margin and poor reactive sources. Key-words: Air conditioner load, voltage stability, bus voltage security, V-Q curve, load model, loading margin
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