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Dynamic compensation of electrical power systems using a new BVSI STATCOM.

机译：使用新的BVSI STATCOM对电力系统进行动态补偿。

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摘要

This thesis deals with the study of dynamic compensation of electric power systems using the static synchronous compensator (STATCOM). A new multilevel binary voltage source inverter (BVSI) which is modular in structure and introduces minimum harmonies into the system has been proposed to build the STATCOM configuration.; Initially, the application of STATCOM for the damping of torsional oscillations that occur in a series compensated ac system is examined. The IEEE first benchmark system is considered for this study. A STATCOM with PI controller is employed at the generator terminal to regulate its terminal voltage. In addition, dynamic performance of the nonlinear system with an optimized STATCOM controller is evaluated for a three-phase fault condition. The results from the analytical and digital simulation studies reveal the technical feasibility of augmenting STATCOM usage for damping of turbine-generator torsional oscillations in series compensated ac systems.; The use of discretely switched power electronic devices results in contamination of electrical supply due to harmonics. A new multilevel binary voltage source inverter (BVSI) with separate dc sources is introduced. The dc source voltages are staggered and controlled in binary proportion of Vdc, 2Vdc, 4Vdc etc., where Vdc is chosen to get the desired ac voltage output. The selective harmonic elimination modulation technique is used to either completely eliminate or minimize the harmonies. Application of such a compensator for dynamic compensation of 13.8 kV distribution system is examined through transient studies. This inverter can generate almost sinusoidal output waveform, reducing its harmonic content while employing the least number of components and providing a modular structure.; A laboratory prototype of 400 vars, 120 V, 1-phi, 3-level, 15-steps binary voltage source inverter is implemented for real time tests. A digital controller using Siemens SAB 80C537 8-bit microcontroller is developed for this prototype.; The results from digital simulation and hardware implementation show the effectiveness of BVSI STATCOM as a dynamic compensator under a wide range of steady state and abnormal operating conditions. The low total harmonic distortion validates the effectiveness of the BVSI structure and selected harmonic elimination algorithm in minimizing or eliminating harmonics introduced into the system. The BVSI STATCOM can smoothly switch the operating mode from leading to lagging and vice versa without jeopardizing its dynamic performance, steady state behavior, and harmonic containing capability. The capacitor voltage controller regulates the capacitor voltages in binary proportion. (Abstract shortened by UMI.)
机译：本文研究了使用静态同步补偿器（STATCOM）的电力系统动态补偿的研究。提出了一种新型的多级二进制电压源逆变器（BVSI），其结构模块化，并在系统中引入了最小的谐波，以构建STATCOM配置。最初，研究了STATCOM在阻尼串联补偿交流系统中发生的扭转振荡中的应用。本研究考虑使用IEEE第一基准系统。发电机端子采用带PI控制器的STATCOM来调节其端子电压。此外，针对三相故障条件，评估了具有优化STATCOM控制器的非线性系统的动态性能。分析和数字仿真研究的结果表明，在串联补偿交流系统中增加STATCOM的使用以提高涡轮发电机扭转振动阻尼的技术可行性。分立开关功率电子设备的使用会由于谐波而导致电源污染。介绍了一种具有独立直流电源的新型多电平二进制电压源逆变器（BVSI）。直流电源电压以Vdc，2Vdc，4Vdc等的二进制比例交错和控制，其中选择Vdc以获得所需的交流电压输出。选择性谐波消除调制技术用于完全消除或最小化谐波。通过暂态研究检查了这种补偿器在13.8 kV配电系统动态补偿中的应用。该逆变器可以产生几乎为正弦波的输出波形，在使用最少数量的组件并提供模块化结构的同时，减少了谐波含量。实现了一个400 vars，120 V，1-phi，3电平，15步二进制电压源逆变器的实验室原型，用于实时测试。为此原型开发了一个使用西门子SAB 80C537 8位微控制器的数字控制器。数字仿真和硬件实现的结果表明，BVSI STATCOM在广泛的稳态和异常工作条件下作为动态补偿器是有效的。低的总谐波失真验证了BVSI结构和选定的谐波消除算法在最小化或消除引入系统的谐波方面的有效性。 BVSI STATCOM可以平稳地将运行模式从超前切换为滞后，反之亦然，而不会损害其动态性能，稳态行为和谐波抑制能力。电容器电压控制器按二进制比例调节电容器电压。 （摘要由UMI缩短。）

著录项

  • 作者

    Patil, Krishnat V.;

  • 作者单位

    The University of Western Ontario (Canada).;

  • 授予单位 The University of Western Ontario (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1999
  • 页码 142 p.
  • 总页数 142
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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