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Self-excited induction generator with a carrying capacity of

Author: WangLongPeng
Tutor: WuXinZhen
School: Qingdao University
Course: Proceedings of the
Keywords: Asynchronous generator With a load capacity Optimization Best short shunt capacitance value
CLC: TM343
Type: Master's thesis
Year: 2010
Downloads: 39
Quote: 1
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Abstract


In renewable energy development and aircraft, warships and other military equipment in the application process , the asynchronous generator as a power generation device independent power system has obvious advantages , this research plays full use of renewable energy and improve the combat effectiveness of military equipment important role . Although the self-excited induction generator has the inherent advantages of asynchronous motors , but with less load capacity to do research for this shortcoming , and reasonable reactive power compensation program . Based on steady - state equivalent circuit of self-excited induction generator in the frequency of the base value , the establishment of the steady-state model , and under different load the outer characteristics and output power , and to determine the critical load impedance different power factor load . Transient equivalent circuit of the induction generator in the two-phase stationary coordinate system and then derive the equation of state , load change transient voltage by the main features of the state matrix determine the root of the real part of the generator to keep self-excited critical condition . Shunt capacitor long shunt to connect the two reactive compensation program , we know that in capacitor short shunt connection is the ideal solution for capacitor short . Judgment indicators of the asynchronous generator voltage stability as the absolute value of the voltage regulation , in the case of a given load power factor , two one-dimensional optimization method to determine the best short shunt capacitance value of the generator . The analysis results show that the best short and shunt capacitor reactive power compensation allows the generator has an ideal voltage stability . Magnetizing inductance for the stable operation of the induction generator based on the equation of state of the running of the the bandstop sense load , short shunt connection based on judgments in input given load , maintain self- excitation Power Feasibility , and to determine asynchronous generators to maintain the self-excited . need critical short shunt capacitance value . The same time , the use of asynchronous generator transient model to visually analyze different short shunt capacitor terminal voltage and output voltage transient process affects . Simulation in the paper are the corresponding experiment for verification , calculation results in good agreement with the experimental results prove the high accuracy of the analysis of the correctness of the method and mathematical models .

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CLC: > Industrial Technology > Electrotechnical > Motor > AC motor > Induction motor
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