发明名称 |
AUTONOMOUS LOAD REDUCING DEVICE |
摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an autonomous load reducing device ensuring accuracy and achieving both miniaturization and cost reduction. <P>SOLUTION: The autonomous load reducing device 100 includes: a structure including a first band pass filter 102 comprising an analog circuit having an operational amplifier 102a and allowing the AC power of a lower frequency band than a rated frequency to pass; a second band pass filter 104 comprising an analog circuit having an operational amplifier 102a and allowing the AC power of a higher frequency band than a rated frequency to pass; a subtractor 106 for outputting a difference in output voltage between the first band pass filter 102 and the second band pass filter 104; a divider 108 for outputting a difference in voltage ratio by dividing the voltage difference by a voltage applied from the power system; a discriminator 110 for discriminating whether the voltage ratio is not less than a predetermined threshold value or not; and an apparatus control part 112 for reducing the load of the system when the discriminator 110 discriminates that the voltage ratio is not less than the threshold value. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
申请公布号 |
JP2011193686(A) |
申请公布日期 |
2011.09.29 |
申请号 |
JP20100059278 |
申请日期 |
2010.03.16 |
申请人 |
TOKYO ELECTRIC POWER CO INC:THE |
发明人 |
SUZUKI HIROKAZU;YOSHIDA YOSHIAKI;SASATANI TAKASHI;HAMADA HIROSHI |
分类号 |
H02J3/00 |
主分类号 |
H02J3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|