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Application of PAS and the Network Equivalence in Guangzhou Power Dispatch Center

Author: ShangGuoDong
Tutor: ZhangYao;XiongWen
School: South China University of Technology
Course: Electrical Engineering
Keywords: Power Application Software Network Model State Estimation Dispatcher Power Flow Network Equivalence
CLC: TM734
Type: Master's thesis
Year: 2010
Downloads: 32
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Abstract


In this thesis, the basic theory and implementation method of the PAS (Power Application Software) are analysised in detail, including the Network Topology and Model, the State Estimation, the Dispatcher Power Flow and the Network Equivalence. Further more, the application effect is also discussed with some examples in Guangzhou Power Dispatch Center. The reaserch in this thesis has an important significance to improve the transfer from the experience-based to the science-based dispatching model.The Network Topology and Model including the equipment parameters and connection relationship are the basic of the PAS. PAS with a comeplete grid model provides accurate analysis results of the power system, more importantly, PAS offers more application functions than the traditional SCADA system.The function of the PAS State Estimation is used to provide reliable and complete data for the dispatcher power flow. In Guangzhou Power Dispatch Center, the PAS State Estimation is employed in several different areas, such as checking dubious datas and correcting the data error, the real-time state estimation results including the substation bus phase value are also used in the coupling loop. To sum up, the accuracy of the dispatcher power flow results is ensured by the reliable and complete data provided by the PAS State Estimation.The Dispatcher Power Flow, as an important module of PAS, is employed in on-line and also off-line power flow calculation. The analysis result is the significant basis for checking the change of power system operating mode. The Dispatcher Power Flow, as an aided decision-making tool, plays an important role in the implimentation of the science-based dispatching model.Power System Network Equivalence is the method for simulating a complicated power system by a simple one. Considering the complexity of Guangzhou Power System, the network equivalence function of PAS is essential to be employed, so that the power flow analysis result could be obtained conveniently.Now, PAS is popular used in Guangzhou Power Dispatch Center. With the continuous development and improment of the function, PAS will play a greater role in the power system operation.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system scheduling, management, communication > Automation of power system scheduling
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