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Unbalanced voltage compensation in low voltage residential AC grids
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016This paper describes the design and test of a control algorithm for active front-end rectifiers that draw power from a residential AC grid to feed heat pump loads. The control algorithm is able to control the phase to neutral or phase to phase RMS voltages at the point of common coupling. The voltage control was evaluated with either active or reactive
Ionut Trintis +2 more
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Voltage Source Converter Control Under Unbalanced Grid Voltage
2021The conventional control of the voltage source converter (VSC) assumes that the input voltage is balanced. However, unbalanced voltage is a phenomenon that occurs frequently in actual industrial sites. If the grid voltage is unbalanced, THD increases due to voltage negative component, and low harmonic components appear in DC-link voltage, which ...
Ahmed G. Abo-Khalil, Ali M. Eltamaly
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IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
In this paper, an improved grid voltage modulated control (GVM) with power compensation is proposed for grid-connected voltage inverters when the grid voltage is unbalanced. The objective of the proposed control is to remove the power ripple and to improve current quality.
Li, Mingshen +3 more
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In this paper, an improved grid voltage modulated control (GVM) with power compensation is proposed for grid-connected voltage inverters when the grid voltage is unbalanced. The objective of the proposed control is to remove the power ripple and to improve current quality.
Li, Mingshen +3 more
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Operation of Grid-Connected DFIG Under Unbalanced Grid Voltage Condition
IEEE Transactions on Energy Conversion, 2009Doubly fed induction generator (DFIG) still shares a large part in today's wind power market. It provides the benefits of variable speed operation cost-effectively, and can control its active and reactive power independently. Crowbar protection is often adopted to protect the rotor-side voltage source converter (VSC) from transient overcurrent during ...
Zhou, Y. (author) +3 more
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Voltage source converter control under unbalanced grid voltage conditions
2017 XXVI International Conference on Information, Communication and Automation Technologies (ICAT), 2017This paper proposes a novel control method for voltage source converter (VSC) connected to grid under unbalanced voltage conditions. The method is based on utilizing the full control capabilities of the switching converter. The proposed method makes the voltage source inverter (VSI) supply the voltages according to the requirements of the load and/or ...
Akhtar Rasool +2 more
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2009 International Conference on Electrical Machines and Systems, 2009
This paper proposed a modified predictive direct power control (P-DPC) strategy for a grid-connected voltage-sourced converter under unbalanced grid voltage conditions. The proposed P-DPC strategy is implemented in the stationary reference frame without the necessity of either the space vector modulation or the synchronous speed d-q transformation.
Lei Shang +3 more
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This paper proposed a modified predictive direct power control (P-DPC) strategy for a grid-connected voltage-sourced converter under unbalanced grid voltage conditions. The proposed P-DPC strategy is implemented in the stationary reference frame without the necessity of either the space vector modulation or the synchronous speed d-q transformation.
Lei Shang +3 more
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VSG Current Balance Control Strategy Under Unbalanced Grid Voltage
2019 22nd International Conference on Electrical Machines and Systems (ICEMS), 2019In recent years, countries around the world have been vigorously developing new energy and electrifying new energy sources. As a result an increasing number of power electronic devices appear in the grid which makes the power grid develop toward low inertia and low damping.
WU Jian +3 more
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Control Strategy for VSC-HVDC under Unbalanced Grid Voltages
Applied Mechanics and Materials, 2017This paper describes the use of an unbalanced control strategy to solve the faults occur in AC grid side of High voltage direct current based on Voltage Source Converter (VSC-HVDC) system. This method divides the voltage and current parameters into negative-sequence and positive-sequence.
Dan Li, Ting Ting Cai
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Control strategy of DC microgrid under unbalanced grid voltage
2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), 2016When the grid voltage is unbalanced, second order pulsation component will appear in the DC bus voltage, which will affect the voltage quality of DC microgrid. In this paper, a control method to eliminate the DC voltage pulsation component is proposed.
null Xiaorong Zhu, null Yumeng Zhang
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Control scheme of PV inverter under unbalanced grid voltage
2014 IEEE PES General Meeting | Conference & Exposition, 2014The effective control of photovoltaic inverter under unbalanced grid voltages is very important for the grid-connected operation of the photovoltaic system. The calculation of the output current reference is a key technology in the control of photovoltaic inverter under unbalanced voltage.
Huang Hao, Xu Yonghai, Yang Lin
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