公开(公告)号：US10170931B2

公开(公告)日：2019-01-01

申请号：US14766017

申请日：2014-02-06

Applicant: NEC Corporation

Inventor： Kenichi Maruhashi ,  Takashi Harada

IPC: H01H45/00 ,  H02J11/00 ,  G06Q50/06 ,  H02J3/14 ,  H02J4/00 ,  H02J3/00

Abstract: An electric power control system of the present invention is connected to an electric power supplying means for supplying electric power and a load means for accepting supply of electric power and consuming the electric power. The electric power control system includes: a supplied energy acquiring means for acquiring a supplied energy, which is the amount of electric power supplied from the electric power supplying means; a consumed energy acquiring means for acquiring a consumed energy, which is the amount of electric power consumed by the load means; and an electric power supply and demand controlling means for, depending on a total supplied energy as the total of the acquired supplied energy and a total consumed energy as the total of the acquired consumed energy, transmitting and/or receiving electric power to and from another device to change the total supplied energy.

公开(公告)号：US10074984B2

公开(公告)日：2018-09-11

申请号：US14780655

申请日：2014-04-07

Applicant: NEC Corporation

Inventor： Kenichi Maruhashi ,  Takashi Harada

IPC: G05D3/12 ,  H02J3/28 ,  H02J3/32 ,  G05B15/02 ,  H02J7/34

CPC classification number: H02J3/28 ,  G05B15/02 ,  H02J3/32 ,  H02J7/34

Abstract: An electric power control system of the present invention includes an electric power supplying means, a load means, and an energy storing means. The electric power control system includes: an energy storage controlling means for controlling the energy storing means so as to decrease charge or discharge electric power over a response time corresponding to a set time constant for energy storing means; and a supplied energy controlling means for executing control to change electric power supplied by the electric power supplying means over a response time corresponding to a set time constant for electric power supplying means so that the electric power supply and demand difference is kept within the preset given range. The time constant for energy storing means is set to be longer than the time constant for electric power supplying means.