Dissertation > Excellent graduate degree dissertation topics show

Application Technology Research of Controllable Reactor in UHV System

Author: MengJing
Tutor: XuJianYuan
School: Shenyang University of Technology
Course: Motor and electrical
Keywords: Extra High Voltage(EHV) Ultra High Voltage(UHV) Magnetic Controllable Shunt Reactor(MCSR) Over-voltage Reactive Power Compensation High Speed Excitation
CLC: TM47
Type: Master's thesis
Year: 2011
Downloads: 35
Quote: 0
Read: Download Dissertation

Abstract


It’s the inevitable trend of development of EHV and UHV. Safe and stable operation of power grid and a higher power quality requirement are needed. Reactive power compensation and reactive power balance in power system, can improve the transmission system stability, improving transmission capacity, system over-voltage suppression. With the increasing complexity of network structure and increasing the voltage level, voltage and reactive power regulation rely solely on traditional non-controllable reactor can not meet the actual demand of compensation device. According to the current situation and development of power industry, the development and application of new reactive power compensation equipment in the current power system in our country is the key technology needed to be solved.Magnetic controllable shunt reactor (MCSR) is one important device in voltage controlling and reactive power compensation, it attracts more attention and applies in many fields. It can adjust the capability of itself automatically and smoothly along with the change of the transmission power. Moreover, when the line transmits large power, once the transient state process happens, it also can increase the capability rapidly and present deep strong compensation. That is to say, it has the function of reducing power frequency and operational over-voltage.At first, MCSR is studied both in theory and simulation in the thesis. The review of MCSR is introduced. Principle of MCSR is analyzed. Mathematical model is set up. And on this basis conclude its simulation model and controlling characteristics.Secondly, the Sanyou-Jiangling EHV transmission line is simulated. The impact of MCSR to the transmission line and the on the inhibitory effect of power frequency over-voltage for high voltage transmission system is analyzed and laid the foundation for the use of MCSR. It lays a foundation for UHV transmission system with MCSR.Again, the voltage control system of controllable reactor is studied. The UHV power system is modeling and simulation on the base of study of EHV power system. The Finally, combined a 1100kV substation in the country, VFTO is calculated on thansformer during inhibition effect of over-voltage obtained by MCSR in the system is very obvious. And dynamic reactive compensation effect by the MCSR of system is simulated.Finally, MCSR response time is too long, and the response time needs to be shorten to meet rapid excitation. Several ways to improve response speed is discussed and the simulation is conducted.

Related Dissertations

  1. Power System Dynamic Voltage Stability Simulation Study Based on Precise Integration Method,TM712
  2. Numerical Analysis of Flow Process in a Molten Carbonate Fuel Cell,TM911.4
  3. Research on the Control Scheme of Hybrid PWM Rectifier under Unbalanced Voltage,TM461
  4. Study of Three-Phase AC Chopper Surge and Its Harmonic Elimination Technology,TM423
  5. Grid-Side Converter Control and Wind Turbine Emulator in Direct Drive Wind Power System,TM46
  6. The Research and Realization on Asymmetric Sine Inverter with Adjustable Frequency and Amplitude,TM464
  7. The Design and Accomplishment of Simulition Platform for Voltage Clamp Experiment Based on Cell Electrophysiological Model,R318.0
  8. Department of Bi-based Co-based oxide thermoelectric ceramics and thin films,TQ174.7
  9. Over-voltage Identification of Transmission Line Based on Hilbert-Huang Transformation,TM866
  10. The Research on Reliability of Low-Voltage Power Line Communication,TM73
  11. Design and Implementation of A Novel High-voltage Presence Indicating Device,TN873
  12. Effect of Different Electrical Voltages Stunning on Meat Quality of Broilers Postmortem,S831
  13. The Impact of Age on the Electroanatomical Characteristics and Clinical Outcome after Catheter Ablation of Patients with Atrial Fibrillation,R541.75
  14. Expresion of Voltage-gated Potassium Channels Kv1.4 and Kv4.1 in the Hippocampi Regions of Epilepsy Model,R742.1
  15. Hypertensive patients with atrial fibrillation electro-anatomical characteristics on impact,R541.75
  16. Small photovoltaic grid-connected inverter design and simulation,TM464
  17. Study of the Mechanical Strcture of a De-Icing Robot for 220kV Transmission Lines,TP242
  18. Low Power SRAM Design Based on Data Retention Voltage (DRV) Scheme,TP333
  19. The Research and Design of Low Voltage Low Power CMOS Analog Multiplier,TN432
  20. Research on the Mechanism of Discharge of Transmission Line in Sand-dust Storm,TM851
  21. PTC formula and technology research,TQ174.6

CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Reactor
© 2012 www.DissertationTopic.Net  Mobile