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Testing Low Voltage Ride Through capabilities of solar inverters
Electric Power Systems Research, 2013Abstract The increase in the rated power of PV inverters has brought with it new requirements, such as Low Voltage Ride Through and reactive power compensation. Field tests in PV plants are too expensive in terms of production losses, and therefore laboratory tests have become a simple, flexible and inexpensive alternative.
J. Eloy-Garcia Carrasco +5 more
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Comparison of several Low Voltage Ride Through Attached Equipment
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019The power plant auxiliary drive system will work abnormally or even trip due to frequency converter voltage drops, which might be caused by transient state process of auxiliary power system or the external grid. Low voltage ride through (LVRT) is an effective way to solve the above problem.
Donghui Wang +5 more
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Low-voltage Ride-through Capability Characterization of Wind Farms
Electric Power Components and Systems, 2012Abstract This article characterizes low-voltage ride-through capability of wind farms. Critical clearing time has been used in the literature as a measure of the transient stability of induction generators and, hence, an indication for low-voltage ride-through capability of single wind turbine generators.
A. S. Awad +2 more
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Low voltage ride through and fault ride through capability of 40kw PV model grid connected
2016 Saudi Arabia Smart Grid (SASG), 2016Nowadays, progressive grow in renewable energy sources such as (wind, solar energy) pursued distribution companies to update its code in order to achieve maximum power available and guarantee electrical reliability and quality. Egypt diversify many techniques to facilitate introducing new renewable energy technologies, such as, a new program to ...
Sabah Mashaly, Mokhtar Hussien Abdallah
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Series Voltage Compensation for DFIG Wind Turbine Low-Voltage Ride-Through Solution
IEEE Transactions on Energy Conversion, 2011This paper introduces a new solution for doubly fed induction generators to stay connected to the grid during voltage sags. The main idea is to increase the stator voltage to a level that creates the required flux to keep the rotor side converter current below its transient rating.
Omar Abdel-Baqi, Adel Nasiri
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A rapid voltage detection method for low voltage ride through under distorted voltage conditions
2015 IEEE International Conference on Mechatronics and Automation (ICMA), 2015This paper deals with a novel voltage detection method for low voltage ride through under distorted voltage conditions. According to the new Grid Codes, the photovoltaic (PV) system should keep connected with the grid and inject the acquired reactive power as soon as possible when the grid voltage sags.
Liang Zhou +3 more
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Low voltage ride through capability of fuel cell generation system connected to low voltage network
2011 IEEE Conference on Clean Energy and Technology (CET), 2011New grid code is expected to require distributed generation units operating parallel with the low voltage grid to ride through low voltage event and at the same time injecting reactive current into the grid. The paper discusses and highlights the problems that could arise and explores the solutions to mitigate these problems.
Wanik, Mohd Zamri Che +3 more
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Low voltage ride-through enhancement in DFIG-based wind turbine
2016 IEEE Electrical Power and Energy Conference (EPEC), 2016Wind farms are regarded as large-scale power plants with interconnected systems, where all systems interact with each other to improve the efficiency of the plant and thus enhance the quality of the output power. However, the conventional centralized controller is inappropriate for such plants.
Ehsan Gatavi +3 more
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Low voltage ride through for a wind turbine based SCAG
2015 3rd International Renewable and Sustainable Energy Conference (IRSEC), 2015This paper develops a control strategy for a large wind turbine based on the squirrel cage asynchronous generator (SCAG). In addition, the transient behavior during Low Voltage Ride Through (LVRT) of the system is studied. To this end, the wind turbine connected to the grid is controlled in such way to inject maximum power into the grid and provide a ...
Kamal Elyaalaoui +2 more
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Research on Low Voltage Ride Through Technology of Wind Farm
2020 IEEE Sustainable Power and Energy Conference (iSPEC), 2020Adopting the idea of time-sharing control, respectively put forward the wind turbine protection scheme of sliding mode variable structure control and the reactive power optimization scheme of variable droop coefficient. First, in the dq-axis coordinate system, the transient mathematical model of the double-fed induction generator rotor side is improved,
Jianhua Yu, Huaizhi Wang, Jianchun Peng
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