An open-circuit fault in an electric power distribution line is detected using metering devices each having a communication function and each placed on a power consumer's circuit connected to an electric power distribution system, and a location of the open circuit is identified. An electric power...
Among the converters in the power system, a Neutral Point Clamped (NPC) three-level inverter is most commonly used to drive electric motors. In this paper, a new approach for open-circuit fault detection and location of the NPC three-level inverter for a shifting process using a constant ...
An open-circuit fault of a power switch in the PWM VSI changes the corresponding terminal voltage and introduces the voltage distortions to each phase voltage. The proposed open-circuit fault diagnosis method employs the model reference adaptive system techniques and requires no additional sensors or ...
A new approach for on-line open-circuit fault diagnosis of inverters based on current trajectory; 基于电流轨迹的逆变器开路故障在线故障诊断的一种新方法; Security and reliability of inverter are an indispensable part in power electronic system. Faults of inverter are usually caused by switch elements...
Based on the phase current reconstruction method, this paper proposes a novel open-circuit fault diagnosis method for the low power voltage source inverter (VSI) in the three-phase permanent-magnet synchronous motor (PMSM) drive. Other than sampling the single dc-link current sensor, the zero ...
Open Circuit Definition: An open circuit is defined as a state in an electrical system where no current flows due to a break in the circuit, maintaining a non-zero voltage across its terminals. Current Flow: In open circuits, the flow of current is zero because the electrical path is inter...
10.The faults overlap circumstances in analog fault diagnosis are analyzed.分析了模拟电路故障诊断中故障类重叠。 11.Fault Dictionary Method in Analog Circuit Fault Diagnosis;模拟电路故障诊断中故障字典应用的研究 12.Development of the Fault Database and Precision Diagnosis System for Rotating Machines;旋转...
The effectiveness and robustness of the proposed diagnosis method are validated by the simulation and experiment results. The switch open-circuit faults can be diagnosed in less than two switching periods. 展开 关键词: DC–DC power converter fault diagnosis floating interleaved boost converter (FIBC)...
A system and method for identifying opens among parallel connections on a circuit assembly such as a printed circuit board (PCB). In a learn phase performed on a known good circuit assembly, a group of parallel connected pins are excited with a first signal. A second signal, out-of-phase ...
OPEN-CIRCUIT VOLTAGE AUTOMATIC DETERMINATION DEVIC 优质文献 相似文献Contactor status detection in power inverters power inverter to a power distribution system; a measuring device coupled to the at least one power conductor; and a controller coupled to the measuring device, and coupled to the arrangeme...