US 11,735,925 B2
Command generation device and command generation method
Kazuki Watanabe, Tokyo (JP); Masato Mitsuhashi, Tokyo (JP); and Osamu Nakakita, Sagamihara (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara (JP)
Appl. No. 17/426,574
Filed by MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara (JP)
PCT Filed Sep. 13, 2019, PCT No. PCT/JP2019/036021
§ 371(c)(1), (2) Date Jul. 28, 2021,
PCT Pub. No. WO2020/158037, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 2019-017462 (JP), filed on Feb. 1, 2019.
Prior Publication US 2022/0102980 A1, Mar. 31, 2022
Int. Cl. H02J 3/38 (2006.01); H02M 7/5387 (2007.01)
CPC H02J 3/381 (2013.01) [H02M 7/53873 (2013.01); H02J 2300/24 (2020.01)] 4 Claims
OG exemplary drawing
 
1. A command generation device for generating a control command for an inverter configured to convert DC power output from a DC power source device into AC power synchronized with a frequency of a bus, the command generation device comprising:
a rotation target determination unit configured to determine, on the basis of active power of the bus at which the inverter is connected, a target value of the rotation speed of a virtual generator configured to monotonically decrease with respect to the active power;
a rotation calculation unit configured to calculate a rotation speed of the virtual generator on the basis of the determined target value of the rotation speed and a rotor model to simulate driving of the virtual generator and calculate the rotation speed of the virtual generator;
a target power determination unit configured to determine target values of active power and reactive power of the inverter on the basis of the calculated rotation speed; and
a command generation unit configured to generate a control command for the inverter on the basis of the determined target values of the active power and the reactive power.