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New Substation Voltage and Reactive Power Control System

Author: LuHongTao
Tutor: LiJiWen
School: Shandong University
Course: Proceedings of the
Keywords: Substation automation Optimal Control of Voltage and Reactive Power Fuzzy boundary voltage and reactive power regulation criteria Harmonic monitoring System communication Embedded Systems
CLC: TM76
Type: Master's thesis
Year: 2005
Downloads: 466
Quote: 2
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Abstract


Substation automation, power grid dispatching automation and optimization of voltage and reactive power control area network development, voltage and reactive power integrated control system (VQC) is increasingly high requirements. In this paper, optimal control of voltage and reactive power substation automation and improve the level of focus on the application of voltage and reactive power control problem is studied, and in the MCVQ-1 type of voltage and reactive power control unit on the basis of a new substation voltage without power integrated control device development work. First, a brief review of the development of voltage and reactive power control overview, focusing on analysis and pointed out the voltage and reactive power control device implementations and Reactive Power Control Equipment existing deficiencies; Through theoretical analysis, in discussing the power system voltage and reactive power regulation characteristics as well as the overall voltage and reactive power control based on the principles discussed voltage and reactive power control features, and control principle of the voltage and reactive power control law; consider changing transformer tap and capacitor bank switching reactive power and voltage of the combined effects of proposed fuzzy boundary voltage and reactive power control criteria applied to new devices for voltage and reactive power control of a variety of operational areas gives the corresponding regulation strategy; harmonics and theoretically analyzed in parallel capacitors mutual influence, from the standpoint of voltage and reactive power devices harmonic amplification measures to prevent the substation. With computer technology, communication technology and automation, scheduling automation level, the regional power grid to achieve optimal control of voltage and reactive power has become possible to achieve this optimal control of voltage and reactive power are compared in two ways proposed distributed voltage reactive power optimization control system is more suitable for the current grid operation. Combined area network voltage and reactive power control and substation automation systems optimize the actual requirements of the scheduling and content of the communication were discussed VQC proposed VQC content of the communication and data structures, developed a VQC and scheduling client communication protocol and MCVQ-1 Reactive Power Control Equipment to achieve a communication function. Finally, the paper type in MCVQ-1 on the basis of voltage and reactive power control device is proposed for the distributed control system voltage and reactive power optimization of the new AVR DSP voltage and reactive power integrated automatic control device development, given the specific hardware and software design solutions. By the AVR microcontroller as the system master CPU, assume control of the system tasks to complete the peripheral circuits and human-machine interface control, handle external interrupts, and finish with the host computer communication function; using digital signal processor (DSP) TMS320F240 as from the CPU undertake major data acquisition and processing system tasks; AC sampling, to get accurate results, which can automatically real-time measurement grid voltage, current, active power, reactive power, power factor and harmonic content

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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