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Quantitative Evaluation of Voltage Sag and Load-Loss Cost Allocation

Author: GaoXiao
Tutor: PengJianChun
School: Hunan University
Course: Power Electronics and Power Drives
Keywords: Electricity market Power Quality Voltage Sag Loss of power loss Evaluate Apportion Equipment sensitive curve
CLC: TM731
Type: Master's thesis
Year: 2005
Downloads: 79
Quote: 2
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Abstract


With the rapid development of modern science and technology as well as voltage sag particularly sensitive microprocessor-controlled equipment and power electronics equipment widely used in industry , power quality problems caused by voltage sag has gradually become the focus of attention , it The study also deepening . Open environment in the electricity market , the need for voltage sag impact quantitative evaluation , to provide a reference for the theory of electrical energy in the electricity market Hedonic . This article first briefly introduces the definition of voltage sag , defined according to its users the economic impact of the loss of power loss . Then , based on the CBEMA curve , combined with the composition ratio of the corresponding user equipment , gives a quantitative evaluation of the system by Voltage Sag user indicators - the proportion of loss of power users , users of loss of power frequency indicators - the number of user de-energized , the voltage sag loss of power loss caused by quantitative evaluation - loss of power costs . Consider classification given all kinds of loss of power loss calculation method , and deduce that the user on the node total loss of power loss and system total loss of power losses . And then combined with the electricity market environment , given the objects and principles of apportionment of loss of power loss , that loss of power losses should be borne by the power supply and load user , and both split the loss of power loss . Based power component theory to establish a quantitative relationship between the power supply and load power , which gives quantitative calculation method of the kind of power should bear the loss of power loss , clear the responsibility of each power load , each power the share of the loss of power loss . Last in the power loss of power loss compensation to all types of users according to each user's number of loss of power to determine the final amount of compensation . Take a 5-node system simulation example illustrates the effectiveness of the method by simulation and analysis . In this paper, the voltage sag quantitative evaluation indicators and loss of power loss allocation method for the the Voltage Sag market economic analysis provides an effective way .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system scheduling, management, communication > Distribution of economic power,the loss function
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