SIMULATION-SIGNAL GENERATION DEVICE, SIMULATION-SIGNAL GENERATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

• US 20160370432A1
• Filed: 03/08/2016
• Published: 12/22/2016
• Est. Priority Date: 06/17/2015
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: SAKUMA, Masatake, YAMAMOTO, Takahiro, KOBAYASHI, Takenori
• Granted Patent: US 10,310,018 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01R 31/3648 comprising digital calculation means, e.g. for performing an algorithm
• CPC Class Codes: G01R 31/3865 related to manufacture, e.g. testing after manufacture
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

According to one embodiment, a simulation-signal generation device includes a charge/discharge-condition acquirer to acquire a charge/discharge condition of an energy-storage system; a signal-characteristic-amount acquirer to acquire a plurality of charge/discharge-signal characteristic amounts for the energy-storage system; a characteristic-signal generation processor to generate a plurality of characteristic signals respectively having the plurality of charge/discharge signal characteristic amounts, based on the plurality of charge/discharge signal characteristic amounts; and a simulation-signal generator to synthesize the plurality of characteristic signals to generate a simulation signal serving as a command signal of charge/discharge for the energy-storage system.

Claims

1. A simulation-signal generation device comprising:

a charge/discharge-condition acquirer to acquire a charge/discharge condition of an energy-storage system;

a signal-characteristic-amount acquirer to acquire a plurality of charge/discharge-signal characteristic amounts for the energy-storage system;

a characteristic-signal generation processor to generate a plurality of characteristic signals respectively having the plurality of charge/discharge signal characteristic amounts, based on the plurality of charge/discharge signal characteristic amounts; and

a simulation-signal generator to synthesize the plurality of characteristic signals to generate a simulation signal serving as a command signal of charge/discharge for the energy-storage system.

2. The simulation-signal generation device according to claim 1, further comprising:

a signal-data acquirer to acquire a charge/discharge signal satisfying an operational condition of the energy-storage system from among a plurality of charge/discharge signals measured in at least one other energy-storage system; and

a signal-characteristic-amount extractor to extract the charge/discharge-signal characteristic amount from the charge/discharge signal acquired by the signal-data acquirer.

3. The simulation-signal generation device according to claim 2, wherein

the signal-characteristic-amount extractor extracts information on a frequency spectrum and a phase spectrum of the charge/discharge signal as the charge/discharge-signal characteristic amount.

4. The simulation-signal generation device according to claim 1, wherein

the plurality of charge/discharge-signal characteristic amounts includes a plurality of arbitrary pieces of:

information on a probability density function, information on a frequency spectrum density, information on a use application of the energy-storage system, and information on at least one of averaging and dispersing.

5. The simulation-signal generation device according to claim 1, further comprising:

a simulation basic-signal generator to

generate signals based on the charge/discharge condition of the energy-storage system by using a uniform distribution or a Gaussian distribution of the signals and by random numbers, and

synthesize the generated signals to generate a basic signal serving as one of the plurality of characteristic signals.

6. The simulation-signal generation device according to claim 1, further comprising:

an energy-storage response acquirer to acquire charge/discharge measurement data measured when the energy-storage system carries out charge/discharge in accordance with the simulation signal;

a response characteristic evaluator to evaluate a characteristic of the charge/discharge measurement data; and

a simulation-signal corrector to correct the simulation signal in accordance with an evaluation result of the response characteristic evaluator.

7. The simulation-signal generation device according to claim 6, wherein

the response characteristic evaluator judges whether the charge/discharge measurement data satisfies an operational condition serving as a condition required for the energy-storage system in operation;

and,

when the charge/discharge measurement data does not satisfy the operational condition, the simulation-signal corrector corrects the simulation signal.

8. A simulation-signal generation method comprising:

acquiring a charge/discharge condition of an energy-storage system;

acquiring a plurality of charge/discharge-signal characteristic amounts for the energy-storage system;

generating a plurality of characteristic signals respectively having the plurality of charge/discharge signal characteristic amounts, based on the plurality of charge/discharge signal characteristic amounts; and

synthesizing the plurality of characteristic signals to generate a simulation signal serving as a command signal of charge/discharge for the energy-storage system.

9. A non-transitory computer readable medium having computer program which causes a computer to perform processing comprising:

acquiring a charge/discharge condition of an energy-storage system;

acquiring a plurality of charge/discharge-signal characteristic amounts for the energy-storage system;

generating a plurality of characteristic signals respectively having the plurality of charge/discharge signal characteristic amounts, based on the plurality of charge/discharge signal characteristic amounts; and

synthesizing the plurality of characteristic signals to generate a simulation signal serving as a command signal of charge/discharge for the energy-storage system.