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Xiaodong Liang
Memorial University of Newfoundland
103Publications
10H-index
363Citations
Publications 103
Newest
#1Nasmus Sakib Khan Shabbir (MUN: Memorial University of Newfoundland)H-Index: 1
#2Xiaodong Liang (MUN: Memorial University of Newfoundland)H-Index: 10
Last.Anh Minh Le (MUN: Memorial University of Newfoundland)
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Due to increasing penetration of wind power plants (WPP), power grids are facing significant power quality challenges at the point of interconnection (POI). To achieve stable and robust power system operation, reactive power plays a vital role. Reactive power needed to compensate voltage fluctuations at the POI of the WPP varies with a short-circuit ratio (SCR). The reactive power capability of a WPP is also limited and largely depends on various operating conditions. In a physical system, it is...
#1Yunfei WangH-Index: 7
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Ferroresonance causes overvoltage and excessive current flow on potential transformers (PT), which can cause substantial damage to PTs and interrupt power system normal operation. In this paper, a sustained overvoltage event on a de-energized 138 kV bus after circuit breakers were opened to clear a phase to ground fault at a Canadian transmission utility power grid is investigated. The PSCAD simulation model is created and validated using field measurement data. The PSCAD simulation results indi...
#1Mohammad Zawad Ali (MUN: Memorial University of Newfoundland)H-Index: 1
#2Nasmus Sakib Khan Shabbir (MUN: Memorial University of Newfoundland)H-Index: 1
Last.Ting Hu (MUN: Memorial University of Newfoundland)H-Index: 13
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In this paper, a practical machine learning-based fault diagnosis method is proposed for induction motors using experimental data. Various single- and multi-electrical and/or mechanical faults are applied to two identical induction motors in lab experiments. Stator currents and vibration signals of the motors are measured simultaneously during experiments and are used in developing the fault diagnosis method. Two signal processing techniques, matching pursuit, and discrete wavelet transform, are...
Apr 24, 2019 in EuroGP (European Conference on Genetic Programming)
#1Yu Zhang (St. John's University)H-Index: 1
#2Ting Hu (St. John's University)H-Index: 13
Last.Md. Nasmus Sakib Khan Shabbir (St. John's University)
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Induction motors are the workhorse in various industry sectors, and their accurate fault detection is essential to ensure reliable operation of critical industrial processes. Since various types of mechanical and electrical faults could occur, induction motor fault diagnosis can be interpreted as a multi-label classification problem. The current and vibration input data collected by monitoring a motor often require signal processing to extract features that can better characterize these waveform...
#1Yushuai Li (NU: Northeastern University)H-Index: 3
#2Zhang Huaguang (NU: Northeastern University)H-Index: 51
Last.Bonan Huang (NU: Northeastern University)H-Index: 2
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This paper investigates the issues of day-ahead and real-time cooperative energy management for multienergy systems formed by many energy bodies. To address these issues, we propose an event-triggered-based distributed algorithm with some desirable features, namely, distributed execution, asynchronous communication, and independent calculation. First, the energy body, seen as both energy supplier and customer, is introduced for system model development. On this basis, energy bodies cooperate wit...
#1Cherechi Ndukwe (MUN: Memorial University of Newfoundland)
#2Tariq Iqbal (MUN: Memorial University of Newfoundland)H-Index: 5
Last.Jahangir Khan (MUN: Memorial University of Newfoundland)H-Index: 2
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Umuokpo Amumara is a village with an estimated population of 9,000 people and about 800 households located in the eastern region of Nigeria in West Africa. This village has no access to power grids for over a decade of existence. Umuokpo, by virtue of its location 5°2735.9N 7°1960.0E, on the average receives about 6 hours of sunlight with a daily average irradiance of 6.12 kWh/m2. The solar energy can be tapped and harnessed to generate quality electricity for this small village. Since the wind ...
In this paper, the root cause analysis of excessive zero-sequence currents is conducted when energizing parallel autotransformers in a power system. The studied system is a large international airport in Canada, where its power is supplied by both utility and local distributed generation (DG) feeding the load through two parallel autotransformers. Recent field records indicated that when the utility, local generators and the first autotransformer were in operation, and the second autotransformer...
Condition monitoring is essential for the reliable operation of induction motors. Temperature estimation serves as a basis for motor protection. Developing accurate and real-time temperature calculation algorithms is critical for thermal and overload protection for induction motors. Vibration monitoring is a widely used approach for induction motors’ fault diagnosis. Vibration signals are usually analyzed by time-, frequency-, or time–frequency-domain signal processing methods. Recent advancemen...
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