Title:
POWER GRID MODEL ANALYSIS DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2017/126260
Kind Code:
A1
Abstract:
Analysis of a natural energy power source linked to many locations requires an extremely large amount of computation time, so the calculation time is shortened by means of a reduction. However, the determination as to whether each natural energy power source can be reduced is not made in accordance with grid accident conditions, so the analytical precision of a grid reduction model is low. To solve this problem, the present invention is a power grid model analysis device that creates a reduced analysis model for a power grid, and is characterized by being equipped with an accident condition setting unit that sets an accident condition that includes the location and the nature of an accident in the power grid, and a natural energy reduction site determination unit that, on the basis of the accident condition and the voltage state at the time of the accident, determines whether a power grid that includes a natural energy power source can be reduced, wherein the natural energy reduction site determination unit determines that reduction is not possible when a natural energy power source for which reduction is not possible exists within a prescribed range of the power grid, and determines that reduction is possible when a natural energy power source for which reduction is not possible does not exist within the prescribed range of the power grid.
More Like This:
| JPS5610034 | SWITCH FOR THIRD CLASS BATTERY CELL |
| JP2020124040 | SERVER DEVICE AND CONTROL METHOD |
| JPS55100033 | METHOD OF OPERATING REGULATED POWER SUPPLY |
Inventors:
WATANABE MASAHIRO (JP)
MIYAKE NORIYUKI (JP)
IMABAYASHI MASATAKA (JP)
TSUJII YUKI (JP)
NAKATANI MASACHIKA (JP)
KONDOU SHINICHI (JP)
MIYAKE NORIYUKI (JP)
IMABAYASHI MASATAKA (JP)
TSUJII YUKI (JP)
NAKATANI MASACHIKA (JP)
KONDOU SHINICHI (JP)
Application Number:
PCT/JP2016/087464
Publication Date:
July 27, 2017
Filing Date:
December 16, 2016
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02J3/00
Foreign References:
| JP2012170168A | 2012-09-06 | |||
| JP2008029100A | 2008-02-07 | |||
| JP2004242452A | 2004-08-26 | |||
| JP2015053847A | 2015-03-19 | |||
| JP2004024245A | 2004-01-29 |
Other References:
"Japan Electrotechnical Standards and Codes Committee, JESC E0019 Grid-interconnection Code JEAC 9701-2012 [revision 1-2013", THE JAPAN ELECTRIC ASSOCIATION, GRID INTERCONNECTION EXPERT COMMITTEE JEAC 9701-2012, 2013
"Analysis of transient stability of one-machine-to-infinite-bus system during large penetration of photovoltaics (PV", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN, IEEJ TRANSACTIONS ON POWER AND ENERGY, vol. 132, no. 1, 2012
"Analysis of transient stability of one-machine-to-infinite-bus system during large penetration of photovoltaics (PV", THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN, IEEJ TRANSACTIONS ON POWER AND ENERGY, vol. 132, no. 1, 2012
Attorney, Agent or Firm:
TODA Yuji (JP)
Download PDF:
Previous Patent: FUEL INJECTION VALVE
Next Patent: DIRECT CURRENT SENSOR, ALTERNATING CURRENT SENSOR, AND INVERTER COMPRISING SAME
Next Patent: DIRECT CURRENT SENSOR, ALTERNATING CURRENT SENSOR, AND INVERTER COMPRISING SAME