Mohsen Ghaffarpour Jahromi

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This paper proposes the use of DC distribution systems in mining applications. In mining a considerable attention is paid to cost optimization per ton of material moved. Therefore, there is a continuous push to use more efficient machines and systems. Electric dragline is the largest excavating machine used in mining, with the least cost per ton and the(More)
To achieve higher profitability, an important objective in mining applications is to minimize the cost per ton of material moved, which leads to the use of more efficient mining machines and systems. Among open-cut excavating machines, preference is often given to electric draglines and rope shovels due to their high productivity and efficiency. Since they(More)
This paper proposes a new concept to control a bidirectional LCL converter which is suitable for applications in mobile mining equipment. This converter employs two DC/AC insulated-gate bipolar transistor-based (IGBT) converters and a passive LCL which replaces the more common high frequency transformer and plays the most important role in energy(More)
This paper proposes a new design procedure for a bidirectional LCL converter which has a potential to be applied in mobile mine equipment. This type of a converter employs two DC/AC insulated-gate bipolar transistor-based (IGBT) converters and a passive LCL filter instead of a traditional high frequency transformer. LCL filter design is based on both zero(More)
This paper proposes a new design procedure for a bidirectional dc/dc <italic>LCL</italic> converter for potential megawatt range applications, including mobile mining equipment. This type of dc/dc converters employ two dc/ac converters and a passive <italic>LCL</italic> filter instead of a traditional high-frequency transformer. The exclusion of the(More)
Condition monitoring of induction motors is important for their efficient and reliable operation. Most of the existing electrical techniques of condition monitoring and fault diagnosis are based on current, voltage, vibration, or/and flux measurements external to the motor. This paper proposes an online fault diagnostic system, which is based on(More)
This paper proposes a new method for measurement-based modeling of nonlinear loads in power systems. The proposed method includes a combination of a binary tree algorithm with nonlinear autoregressive with exogenous input (NARX) identification. This paper demonstrates that the new method performs well without any prior knowledge of the system structure. In(More)
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