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Research of the Hierarchical Coordinated Voltage Control in Substation

Author: XiaYang
Tutor: ZhaoHongShan
School: North China Electric Power University
Course: Proceedings of the
Keywords: Transformer substation Voltage control Real-time linear logic (LTL) Mixed model Predictive Control
CLC: TM63
Type: Master's thesis
Year: 2011
Downloads: 22
Quote: 0
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Abstract


Substation with a variety of voltage control devices , such as : OLTC transformer tap adjustment , shunt capacitor switching and low-voltage load shedding How to ensure effective coordination between the controllers is an urgent need to solve the problem . The paper presents a hierarchical structure of a voltage control , wherein the bottom layer is a physical layer, constituted by the actual controller , they have own control law . Upper compared to coordination control layer , by considering a number of indicators such as security, stability and economy , to ensure coordinated control between the controller under various circumstances . In this paper, two methods to design the coordination controller , were based on linear real-time logic the substation voltage coordinating controller design based on the hybrid model of substation voltage coordinated controller design . Linear real-time logic - based methods to coordinate logic -based linear real-time logic language to describe the coordination logic and linear real-time logic language can be automatically converted to automata model control ; while the method based on the hybrid model considering the trend of the constraints of the system , dynamic load and logical behavior and other factors , the establishment of a hybrid model , combining hybrid predictive control technology to design coordination controller . The Dymola environment the proposed method were designed coordinated controller , and a detailed analysis and simulation , the results show that the proposed method is feasible .

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CLC: > Industrial Technology > Electrotechnical > Power generation, power plants > Substation
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