Design assistance device, design assistance method, and design assistance program
An auxiliary device and design technology, applied in computer-aided design, CAD circuit design, calculation, etc., can solve problems such as labor hours, unstable movements, and inability to speed up switching speeds
Pending Publication Date: 2021-08-13
ORMON CORP
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Problems solved by technology
In such a system, there is a problem that the switching speed cannot be increased in order to reduce radiation noise from a long cable between the motor / servo driver, and the connection between the motor / servo driver requires multiple cables
[0004] However, in a system employing this configuration, the LC circuit on the DC bus side and the inverter circuit side interfere with each other and the operation of the system may become unstable (see, for example, Non-Patent Document 1).
In the case of actual wiring and confirmation of oscillation, man-hours are required to correct the actual wiring bus to suppress oscillation
In addition, it is necessary to change the wiring bus through trial and error until the oscillation can be suppressed, which further requires man-hours
Method used
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[0038] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0039] figure 1 A block diagram showing a design assisting device 10 according to an embodiment of the present invention, Figure 2A and Figure 2B A configuration example of a DC power supply system whose stability is analyzed by the design assisting device 10 is shown.
[0040] The design assisting device 10 of the present embodiment ( figure 1 ) is to pass the analysis Figure 2A , Figure 2B The stability of the DC power supply system shown in the structure is a device developed to assist the design of the DC power supply system.
[0041] Specifically, as Figure 2A and Figure 2B As shown, the DC power supply system (hereinafter, also referred to as the analysis target system) whose stability is analyzed by the design assisting device 10 is a single ( Figure 2A ) or multiple ( Figure 2B ) A system in which the servo device supplies power from the DC powe...
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This design assistance device is provided with: a means for acquiring system information that indicates the configuration of a DC bus of a DC power feeding system; and an output means for outputting information about the stability of the DC power feeding system on the basis of the system information acquired by the acquisition means and a current value required for the respective operations of one or more servo devices. According to the configuration, the stability of the DC power feeding system in which a DC power supply supplies power to the one or more servo devices including an inverter circuit and an electromotor through the DC bus can be analyzed in consideration of the configuration of the DC bus.
Description
technical field [0001] The present invention relates to a design assistance device, a design assistance method, and a design assistance program. Background technique [0002] In a factory or the like, a system (a system including a robot and its control device, etc.) is used in which a plurality of motors are PWM-driven by a plurality of servo drivers arranged in remote places. In such a system, there are problems in that the switching speed cannot be increased in order to reduce radiation noise from a long cable between the motor / servo driver, and the connection between the motor / servo driver requires multiple cables. [0003] If only the inverter circuit in the servo driver is arranged in the vicinity of each motor, and power is supplied from one DC power supply to a plurality of inverter circuits through a DC bus, the above problems can be avoided. [0004] However, in a system employing this configuration, the LC circuit on the DC bus side and the inverter circuit side ...
Claims
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IPC IPC(8): G06F30/36G06F30/367
CPCG06F30/36G06F2119/06G06F2119/02G06F2111/10G06F30/17
Inventor 桐渊岳财津俊行芦田岳史土井昌志
Owner ORMON CORP