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A Unified SVM Algorithm for Multilevel Converter and Analysis of Zero Sequence Voltage Components
IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics, 2006Space vector modulation (SVM) is widely used in three phase converters. This paper presents a novel SVM algorithm in three phase coordinate system which is very simple to implement. In this algorithm, the role of the zero sequence component in SVM is studied, and the switching states and duty ratios are calculated straightforwardly without vector ...
Wang Chenchen, null Li Yongdong, Xiao Xi
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IEEE transactions on power electronics
Conventional model predictive control (MPC), which selects one basic voltage vector through the enumeration process, exhibits relatively high output ripples.
Xiaomei Tang, Shuangxia Niu
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Conventional model predictive control (MPC), which selects one basic voltage vector through the enumeration process, exhibits relatively high output ripples.
Xiaomei Tang, Shuangxia Niu
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A New Fault Line Selection Method Based on Zero-Sequence Active Component
2010 International Conference on Electrical and Control Engineering, 2010a new fault line selection method based on the elimination of unbalanced current of zero-sequence active power is proposed by analyzing the principle of active power method and its inaccuracy. The amplitude and phase of real zero-sequence currents can be calculated by the method and the effect of unbalanced current is eliminated.
Wang Chonglin +3 more
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2007 7th International Conference on Power Electronics and Drive Systems, 2007
A minimization problem for the instantaneous active and reactive currents give the optimal solution for the three-wire three-phase systems. This basic solution is simple to implement, but posing practical issues when it is applied to a four-wire three-phase system.
E. Pashajavid +2 more
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A minimization problem for the instantaneous active and reactive currents give the optimal solution for the three-wire three-phase systems. This basic solution is simple to implement, but posing practical issues when it is applied to a four-wire three-phase system.
E. Pashajavid +2 more
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Zero-sequence Current Control in a Back to Back Inverter with Pump Back Test Configuration
European Conference on Cognitive Ergonomics, 2020The pump back test is popular in the industry for high power characterization since it does not have the requirement for high-power DC power supply and AC load.
Yuzhi Zhang, Zhongjing Wang, Yu Du
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2020 5th International Conference on Smart Grid and Electrical Automation (ICSGEA), 2020
When the high-impedance grounding fault (HIGF) occurs in the resonant grounding system, the fault current is weak, and the traditional relay protection device cannot identify and remove the fault reliably.
Jiran Zhu +4 more
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When the high-impedance grounding fault (HIGF) occurs in the resonant grounding system, the fault current is weak, and the traditional relay protection device cannot identify and remove the fault reliably.
Jiran Zhu +4 more
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2016 7th India International Conference on Power Electronics (IICPE), 2016
The fault current at a particular node in microgrid system varies depending upon its grid connected and islanded mode of operations. In this scenario microgrid the function of microgrid central protection unit becomes challenging to maintain its simplicity and reliability during protection coordination.
Manjeet Singh, Prasenjit Basak
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The fault current at a particular node in microgrid system varies depending upon its grid connected and islanded mode of operations. In this scenario microgrid the function of microgrid central protection unit becomes challenging to maintain its simplicity and reliability during protection coordination.
Manjeet Singh, Prasenjit Basak
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IEEE Transactions on Transportation Electrification
Interturn short fault (ISF) and high-resistance connection (HRC) fault are both common incipient faults occurred in permanent magnet synchronous machines (PMSMs).
Ying Zhu, Shouguo Cai, Bin Li
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Interturn short fault (ISF) and high-resistance connection (HRC) fault are both common incipient faults occurred in permanent magnet synchronous machines (PMSMs).
Ying Zhu, Shouguo Cai, Bin Li
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2010 IEEE International Conference on Power and Energy, 2010
Distance relays are subject to fail to detect some earth faults since the fault resistance is usually much more in the earth faults rather than the ph-ph faults. Typically a traditional zero-sequence-based method is used to detect a high-resistance earth fault. However, this method fails to detect some high-resistance earth faults.
Amin Samanfar, Behnam Mahamedi
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Distance relays are subject to fail to detect some earth faults since the fault resistance is usually much more in the earth faults rather than the ph-ph faults. Typically a traditional zero-sequence-based method is used to detect a high-resistance earth fault. However, this method fails to detect some high-resistance earth faults.
Amin Samanfar, Behnam Mahamedi
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IEEE transactions on power electronics
Parallel inverters system with modified LCL filters may trigger zero-sequence LC (ZSLC) resonances. Especially in high-power applications, lower switching frequencies are usually adopted to reduce switching losses.
Rui Zhang +4 more
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Parallel inverters system with modified LCL filters may trigger zero-sequence LC (ZSLC) resonances. Especially in high-power applications, lower switching frequencies are usually adopted to reduce switching losses.
Rui Zhang +4 more
semanticscholar +1 more source