Design of Onboard Emulational Power Supply Exciter based on Virtual Instrument

다국어 초록 (Multilingual Abstract)

In the validation process of power supply subsystem of aviation electro-mechanical system, connecting the power supply equipment directly can lead to accidents caused by current overload or voltage overload. In order to prevent such accidents, this paper designed a kind of emulational power supply subsystem exciter based on virtual instrument technology. The design scheme uses AC and DC programmable power supplies and PXI series analog output devices which produced by National Instrument as power sources and analog signal sources representing lubricating oil temperature, oil surplus and so on. It uses PXI data acquisition devices as signal collectors. It accomplishes the data transmission between the hardware system and the principal computer software programmed by LabVIEW through PXI-8375 optical fiber communication interface devices. The software achieves functions of the real-time acquisition and the display of signals such as the power supply, the oil temperature, the oil surplus, the alarm and so on. The test shows that the system has good stability, high reliability in data transmission and strong versatility. This system has realized functions of data collection, storage and playback of the power supply, alarm signals and so on.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. Hardware Design of Emulational Power Supply Exciter
• 2.1. Programmable Power Supply
• 2.2. NI-PXI Series Device
• 2.3. Phoenix Connector and Relay
• 3. Software Design of Emulational Power Supply Exciter
• 3.1. Power System Topology Monitoring and Display Module
• 3.2. The Power Signal Acquisition Module
• 3.3. Output Quantity Simulation Module
• 3.4. Discrete Signal Acquisition Module
• 3.5. Fault Diagnosis and Alarm Module
• 3.6. The System State Storage and Playback Module
• 3.7. Assistance Module
• 4. Experimental Results
• 5. Conclusions
• References