发明名称 |
STATIC VARIABLE COMPENSATOR AND VOLTAGE-CONTROL METHOD |
摘要 |
An object is to provide a static synchronous compensator and a voltage control method capable of adjusting the voltage in a single-phase AC power system. The static synchronous compensator according to the invention generates a second axis voltage command from the difference between the DC voltage converted by a single-phase voltage AC-DC conversion circuit and a set DC voltage command. When the voltage (the voltage of an AC terminal) of the single-phase AC power system increases, since the difference between the voltage of the AC terminal and an internal electromotive force increases, the static synchronous compensator carries out a PWM control to decreases the voltage of the AC terminal side of the single-phase voltage AC-DC conversion circuit. Since the voltage of the single-phase voltage AC-DC conversion circuit becomes lower than the voltage of the single-phase AC power system, an ineffective current flows from single-phase AC power system in the static synchronous compensator so that the voltage of the single-phase AC power system can be decreased. |
申请公布号 |
EP2891938(A1) |
申请公布日期 |
2015.07.08 |
申请号 |
EP20130834173 |
申请日期 |
2013.08.13 |
申请人 |
ORIGIN ELECTRIC COMPANY, LIMITED |
发明人 |
USHIKI, SHUICHI;OHSHIMA, MASAAKI |
分类号 |
G05F1/70;H02J3/16;H02J3/18;H02M7/219;H02M7/46 |
主分类号 |
G05F1/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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