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Control of high-step down voltage converters for voltage regulator modules
2011 8th International Conference on Electrical Engineering, Computing Science and Automatic Control, 2011New technologies are requiring high step-down conversion voltages. A possible solution to this problem is to use several buck converters connected in cascade; however, a complex control circuitry is required. An alternative solution is to use an n-stage positive output cascade buck converter with a single active switch.
Jesús Leyva-Ramos +2 more
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Voltage control of multiple step voltage regulators by renewing control parameters
2014 Power Systems Computation Conference, 2014This paper presents a novel method of determining the control parameters and a voltage control method for multiple step voltage regulators (SVRs) in a single feeder. The main feature of the proposed method is the updating of the control parameters at constant intervals to minimize the amount of voltage violations and the tap operation times of the SVRs
Shinya Yoshizawa +6 more
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A Method for Measurement of Step Voltage Rise Time of Partial Discharge Calibrators
Conference on Precision Electromagnetic Measurements, 2018The measurement methods of the step voltage risetime of Partial Discharge calibrators are discussed. A method using a capacitor is recommended in the latest edition of IEC standard(IEC 60270–2015). However, the influences by the capacitance of cables and
N. Liu +4 more
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Double voltage step-up photovoltaic microinverter
2017 IEEE International Conference on Industrial Technology (ICIT), 2017In conventional photovoltaic microinverters configuration, a single PV module is connected to the grid through two converter stages: a step-up dc-dc stage and a step-down dc-ac stage. In the first stage, a high frequency transformer is generally used to achieve the high step-up voltage ratio conversion to a voltage above the grid peak value, reducing ...
Diana López +3 more
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A Novel Interleaved High Step-Up Converter With Built-In Transformer Voltage Multiplier Cell
IEEE transactions on industrial electronics (1982. Print), 2021In this article, we propose a novel interleaved high step-up converter. The proposed converter integrates the built-in transformer voltage multiplier cell (VMC) to the interleaved boost converter with voltage lift capacitor. The voltage gain is increased
T. Nouri +2 more
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Step type feeder voltage regulators
Electrical Engineering, 1935Discussion and author's closure of a paper by L H. Hill published in the February 1935 issue, pages 154–8, and presented for oral discussion at the distribution and transmission session of the South West District meeting, Oklahoma City, Okla., April 26, 1935. F. L. Snyder (Westinghouse Elec. and Mfg.
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2015
In the present chapter, the main types of energy conditioning systems will be summarily characterized, as well as energy storing devices and MPPT techniques. Raw electrical energy captured from the ambient sources is generally not suitable for direct usage to power electronic circuits. As such, this energy must be properly conditioned for practical use.
Carlos Manuel Ferreira Carvalho +1 more
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In the present chapter, the main types of energy conditioning systems will be summarily characterized, as well as energy storing devices and MPPT techniques. Raw electrical energy captured from the ambient sources is generally not suitable for direct usage to power electronic circuits. As such, this energy must be properly conditioned for practical use.
Carlos Manuel Ferreira Carvalho +1 more
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Integration of step voltage regulators in islanded microgrids
2017 IEEE International Conference on Industrial Technology (ICIT), 2017Step voltage regulators (SVRs) are the workhorses of existing distribution feeders, where they provide appropriate voltage control to meet the customer demands. Given the special features and operation characteristics of islanded microgrids (IMGs), the role of SVRs during the operation of distribution networks in islanded mode has not been well ...
Nader A. El-Taweel +1 more
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Assessment of Increasing PV Penetration Levels on Step Voltage Regulators Performance
IEEE PES Transmission and Distribution Conference and Exhibition, 2018This paper evaluates the impact of photovoltaic generation in voltage deviation and power reverse flow in a IEEE 34 node test feeder with step voltage regulators.
C. Vera +3 more
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Protecting Workers from Step Voltage Hazards
IEEE Technology and Society Magazine, 2016Occupational accidents still occur, despite technical developments in the occupational safety field at large. The experience of being harmed at work can be devastating, with profound consequences for employees, their families, friends, and work colleagues. Many consequences cannot be measured directly, such as pain suffered.
Aikaterini D. Baka, Nikolaos K. Uzunoglu
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