MICROGRID COMPATIBILITY OF PHOTOVOLTAIC AND WIND POWER SYSTEMS
... The fixed speed generators have a design speed for which they have maximum efficiency whereas for other speeds their efficiency is lower. Variable speed generators have the maximum power tracking capability that extracts maximum available power out of the wind at different speeds thereby resulting i ...
... The fixed speed generators have a design speed for which they have maximum efficiency whereas for other speeds their efficiency is lower. Variable speed generators have the maximum power tracking capability that extracts maximum available power out of the wind at different speeds thereby resulting i ...
Integration of PV/Battery Hybrid Energy Conversion
... control of μG-VSC in micro grid application. These algorithms requires complex coordinate transformations, which is combersome. Compared to the control strategies mentioned above, the Instantaneous symmetrical component based control proposed in this paper for micro-grid applications is simple in fo ...
... control of μG-VSC in micro grid application. These algorithms requires complex coordinate transformations, which is combersome. Compared to the control strategies mentioned above, the Instantaneous symmetrical component based control proposed in this paper for micro-grid applications is simple in fo ...
Исследование Влияния Параметрических Расстроек На
... voltage leads to a decrease in the cost of the rectifier output filter, and improving the quality of the input current of rectifier leads to improved electromagnetic compatibility of converter with the supply grid, especially in cases of comparable power rectifier and power supply. In this case, the ...
... voltage leads to a decrease in the cost of the rectifier output filter, and improving the quality of the input current of rectifier leads to improved electromagnetic compatibility of converter with the supply grid, especially in cases of comparable power rectifier and power supply. In this case, the ...
Eletronica de Potencia V18 - N4.indd
... Abstract – This work proposes a 12 kW three-phase grid-connected single stage PWM DC-AC converter destined to process the energy provided by a photovoltaic array composed of 57 KC200GT PV modules with high power factor for any solar radiation. The PWM inverter modeling and the control strategy, usin ...
... Abstract – This work proposes a 12 kW three-phase grid-connected single stage PWM DC-AC converter destined to process the energy provided by a photovoltaic array composed of 57 KC200GT PV modules with high power factor for any solar radiation. The PWM inverter modeling and the control strategy, usin ...
View PDF - Maxwell Science
... required to compensate for time varying loads such as electric arc furnaces, fluctuating output power of wind generation systems, and transients on parallel connected loads (e.g., line start of induction motors). Reactive power compensation is commonly used for flicker mitigation and load voltage re ...
... required to compensate for time varying loads such as electric arc furnaces, fluctuating output power of wind generation systems, and transients on parallel connected loads (e.g., line start of induction motors). Reactive power compensation is commonly used for flicker mitigation and load voltage re ...
OPS-A Series Arc Lamp Power Supplies
... Utilizing the OPS Power Supply's shutter control feature enables Timed exposure control mode. The exposure or open time of the shutter and number of repeat cycles is set by the user. Exposure times can be paused and resumed at will or reset to 0 in the middle of an exposure with the easy to use push ...
... Utilizing the OPS Power Supply's shutter control feature enables Timed exposure control mode. The exposure or open time of the shutter and number of repeat cycles is set by the user. Exposure times can be paused and resumed at will or reset to 0 in the middle of an exposure with the easy to use push ...
Part 1: Harmonics
... loads and to reduce power consumption results in unwanted frequencies superimposed on the supply voltage. The presence of voltage at other frequencies is, as far as possible, to be avoided. ...
... loads and to reduce power consumption results in unwanted frequencies superimposed on the supply voltage. The presence of voltage at other frequencies is, as far as possible, to be avoided. ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... exhibits a similar behavior to the SVC. However, it is seen by the system as asource of synchronous voltage, while the SVC is seen as a variable admittance [3][4].From the reactive power point of view, the StatCom provides operating characteristics similar toa rotating synchronous compensator withou ...
... exhibits a similar behavior to the SVC. However, it is seen by the system as asource of synchronous voltage, while the SVC is seen as a variable admittance [3][4].From the reactive power point of view, the StatCom provides operating characteristics similar toa rotating synchronous compensator withou ...
DC POWER SUPPLY BLOCK DIAGRAM OF POWER SUPPLY
... loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages. Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor ...
... loops. It may use an electromechanical mechanism, or electronic components. Depending on the design, it may be used to regulate one or more AC or DC voltages. Electronic voltage regulators are found in devices such as computer power supplies where they stabilize the DC voltages used by the processor ...
MAX2242 2.4GHz to 2.5GHz Linear Power Amplifier General Description Features
... ±0.8dB accuracy at the highest output power level. An accurate automatic level control (ALC) function can be easily implemented using this detector circuit. The PA also features an external bias control pin. Through the use of an external DAC, the current can be throttled back at lower output power ...
... ±0.8dB accuracy at the highest output power level. An accurate automatic level control (ALC) function can be easily implemented using this detector circuit. The PA also features an external bias control pin. Through the use of an external DAC, the current can be throttled back at lower output power ...
Power factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of -1 to 1. A power factor of less than one means that the voltage and current waveforms are not in phase, reducing the instantaneous product of the two waveforms (V x I). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power will be greater than the real power. A negative power factor occurs when the device (which is normally the load) generates power, which then flows back towards the source, which is normally considered the generator.In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor.Linear loads with low power factor (such as induction motors) can be corrected with a passive network of capacitors or inductors. Non-linear loads, such as rectifiers, distort the current drawn from the system. In such cases, active or passive power factor correction may be used to counteract the distortion and raise the power factor. The devices for correction of the power factor may be at a central substation, spread out over a distribution system, or built into power-consuming equipment.