Dissertation > Excellent graduate degree dissertation topics show

Research of Marine Electrical Network Stabilization Influenced by the Electric Propulsion System

Author: YangLin
Tutor: ZhangLiJun
School: Harbin Engineering University
Course: Proceedings of the
Keywords: mathematical modeling electric propulsion system vector control boat - propeller system voltage stability
CLC: U664.14
Type: Master's thesis
Year: 2010
Downloads: 176
Quote: 4
Read: Download Dissertation

Abstract


Ship electric power system is a stand-alone power system, which has small generating capacity and large load capacity relatively. There will be greatly affected with the load fluctuations in the stability of the electricity grid. Electric propulsion system is the most important load in ship power system, accounting for more than 60% of generating capacity. It is significance to study the operation of propulsion that impact on the ship power system. To analyze the stability of generator is an improtant part of stability analysis in the ship power system, and is the main work of this paper also.This study taking into account the dynamic characteristics of generator, propulsion motor and propeller. Established the generator and its control systems and electric propulsion system model respectively, finally achieving the right combination of ship power system simulation.First of all, an important component of the system modeling:(1)Taking into account the disturbances to the motor by propeller,established permanent magnet synchronous motor control system model using vector control method and SVPWM pulse width modulation techniques.(2)Taking into account the relationship between ship motion and the propeller and the interaction between ship and propeller, established a unified ship-propeller system model.(3)Taking into account the system load fluctuations to the generator terminal voltage and power system voltage stability requirements, in the establishment of generator and control system using PID closed-loop control model of excitation control link, forming the main power and control of bodypower model.Then simulated the electric propulsion system and the generator excitation control system and analysed the dynamic features in the MATLAB/SIMULINK environment.Finally, combined the "power" model and "load" model and integratly simulated the generator terminal voltage in the operating condition of electric propulsion system starting at full speed, grading starting, direct brake, braking, and direct reverse grading.

Related Dissertations

  1. Power System Dynamic Voltage Stability Simulation Study Based on Precise Integration Method,TM712
  2. Simulation Research on Compound-Structure Permanent-Magnet Synchronous Machine System Used in Hybrid Electric Vehicles,TM341
  3. Grid-Side Converter Control and Wind Turbine Emulator in Direct Drive Wind Power System,TM46
  4. Security and Stability Analysis of Shengli Oilfield Power System,TM712
  5. Including wind farm grid voltage stability studies,TM712
  6. Offshore wind farm application of HVDC technology research,TM614
  7. Including wind farm grid voltage region of bifurcation theory,TM712
  8. AC-DC Hybrid Transmission System Voltage Stability,TM712
  9. Multi-parameter Static Bifurcation Analysis of Wind Power System Voltage Stability,TM712
  10. Study on Two Stage Wide-range Input DC/DC Converter,TM46
  11. Study on Algorithms Related to Voltage Security On-Line Assessment, Index, and System Building,TM712
  12. The Research for On-line Voltage Stability Considering Load Characteristics,TM712
  13. Southern Power Grid voltage static , transient , and the whole process of analysis,TM712
  14. The Security and Stability Research of Zhoushan Grid after 220kV AC Interconnection Lines Put into Operation,TM712
  15. The Steady Voltage Stability Analysis of AC/Voltage Source Converter Based HVDC Transmission System,TM721.1
  16. Analysis and Control of Voltage Stability Based on Power Flow Algorithms,TM712
  17. Study on Integration and the Penetration Limit of Wind Power,TM614
  18. Research on Voltage Stability Evaluation Index and Its Algorithm of Large-scale Power Grid,TM712
  19. Classification controllable shunt reactors connected to the grid electromagnetic transient and voltage stability,TM712
  20. Voltage Stability Real-time Monitoring Based on Wide Area Measurement System,TM712
  21. Study and Design on High-Reliability Eletro-Machanical Actuator,V249.1

CLC: > Transportation > Waterway transport > Marine Engineering > Ship machinery > Ship power plant > Power-driven device
© 2012 www.DissertationTopic.Net  Mobile