US 12,298,724 B2
Device and method for assisting in assigning compressor controller settings values, and compressor operation control system
Eunkyeong Kim, Tokyo (JP); Tatsurou Yashiki, Tokyo (JP); and Nobuhiro Tottori, Tokyo (JP)
Assigned to HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD., Tokyo (JP)
Appl. No. 17/786,622
Filed by Hitachi Industrial Equipment Systems Co., Ltd., Tokyo (JP)
PCT Filed Dec. 18, 2020, PCT No. PCT/JP2020/047565
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/140885, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2020-000423 (JP), filed on Jan. 6, 2020.
Prior Publication US 2023/0034599 A1, Feb. 2, 2023
Int. Cl. G05B 19/04 (2006.01); G05B 19/042 (2006.01)
CPC G05B 19/042 (2013.01) [G05B 2219/2614 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A compressor operation control system comprising:
a plurality of compressors;
a compressor operation controller, in communication with the plurality of compressors, for starting or stopping one or more of the compressors, collecting discharged air of the compressors in an air tank, and supplying the air tank as a compressed air source in a predetermined pressure range; and
a central processing unit (CPU) in communication with the compressor operation controller, the CPU programmed to:
receive piping network information which is an element of a pressure loss of a piping flow from the compressor to a pressure control position of the controller, compressor specifications which are an upper limit of a discharge pressure of the compressor and the number of start/stop times, a supply flow rate condition which is time change data of a flow rate flowing from the pressure control position of the controller, and a supply pressure condition which is a lower limit of the supply pressure at the pressure control position of the controller,
generate, based on a predetermined rule, a combination of the controller setting values and provide the generated combination to a simulator,
calculate, by the simulator, time-series data of the supply pressure and time series data of an operating state of the compressor by combining a piping network model that simulates the pressure and flow rate of the piping network and a controller model that simulates a signal of the controller,
calculate a predicted value of the supply pressure and a number of compressor starts/stops according to calculation results output by the simulator, and
output, to the compressor operation controller, a combination of a plurality of the controller setting values, a predicted value of the supply pressure for the combination of the controller setting values, and the number of compressor starts/stops,
wherein one or more of the compressors are controlled by the compressor operation controller to start or stop, collect discharged in an air tank, and supply the air tank as a compressed air source in a predetermined pressure range.