发明名称 |
ALTERNATING CURRENT ELECTRIC RAILROAD POWER SYSTEM USING EMTDC, AND ANALYSIS METHOD THEREOF INCLUDING AUTOMATIC TRANSFORMER SIMULATION STEP |
摘要 |
PURPOSE: An alternating current electric railroad power system and an analysis method thereof are provided to analyze harmonics, voltage drop, voltage unbalance, and faults by using a user defined model of an EMTDC program. CONSTITUTION: An alternating current electric railroad power system analysis method comprises an automatic transformer simulation process of obtaining a primary voltage between a catenary and a feeder, a secondary voltage between a catenary and a rail, and a loop current of an automatic transformer. The automatic transformer simulation process includes a first step of defining a primitive impedance matrix and a loop incidence matrix; a second step of obtaining a loop voltage vector and a loop impedance matrix from the first step; a third step of obtaining a loop voltage equation from the second step; a fourth step of obtaining a loop current equation by using a condition where currents flowing along two windings of the automatic transformer have the same size and different directions; a fifth step of obtaining a simultaneous equation by combining the loop voltage equation obtained in the third step and the loop current equation obtained in the fourth step; and a sixth step of solving the simultaneous equation obtained in the fifth step.
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申请公布号 |
KR20040103712(A) |
申请公布日期 |
2004.12.09 |
申请号 |
KR20030035374 |
申请日期 |
2003.06.02 |
申请人 |
KOREA ELECTRO TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
JUNG, SEONG MAN;YOON, JAE YEONG |
分类号 |
H02J3/00;(IPC1-7):H02J3/00 |
主分类号 |
H02J3/00 |
代理机构 |
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