Boost converter psim simulation

It also performs the characteristic of PV cell in which maximum power is almost proportional to irradiation.

Your next article. Dave from DesignSpark. Too long A little too long Perfect A little too short Too short. Implementation of interleaved boost DC DC converters Interleaved boost converter is built by four inductor branches.

Share this post. Its operation can be explained with assumption that the circuit comprises of ideal components, unit coupling coefficient and under continuous conduction mode. In buck charging mode, the switch S2 is turned on and S1 is turned off. The diode D conducts and Coupled inductors are charged. In buck discharging mode, the switch S2 is turned off cutting current in L1.

S1 is turned on and D conducts L2 current to the load. In boost charging state, S1 and S2 are turned on charging L1. D is reverse biased by L2 and output voltage is supported by capacitor C.

In boost discharging mode, S2 is on and S1 is off. L1 and L2 conduct through D to the output. Modified PWM control circuitry is used for control of operation.

Open loop control circuitry is shown in Fig. The modulation index m, actually defines the buck and boost operation here. Then the upper comparator provides the required duty cycle pulses for S2 and lower comparator outputs a 1 state; thus NAND gate produces the complimentary pulses for S1. Then the upper comparator produces a 1 state which keeps S2 ON and. Closed loop control circuitry is shown in Fig. It has two control voltages Vc and Vc. Vc is obtained by compairing the reference voltage with the output voltage.

Vc is obtained by downshifting the control voltage Vc by Vm ; Vc. Swtooth ramp has an amplitude of Vm. It is assumed that the circuit comprises of ideal components, unit coupling coefficient and under continuous conduction mode.

The dark connections show the current path in each mode. The switching frequency of 20 kHz was chosen. L1 and L2 were chosen as Input voltage of 12V is given.

Filter capacitor value should be high. Here m controls the mode of operation. So whenever m changes the mode of operation changes. A PI controller and a limiter is used to obtain the required value of duty cycle during closed loop operation. It can be seen that the voltage gain is about 0. It shows a good step-down capability of the circuit. It can be seen that a voltage gain of 8. It shows a good step-up capability of the circuit.

The output waveforms for a duty cycle of 0. There occurs a turn off voltage spike across the switch as can be seen from the waveform. These can be reduced by designing effective snubber circuit. About 0. The output waveforms for a duty cycle of 1. There occurs a high transient voltage across the switch as can be seen from the waveform. About 2 times the input voltage appears across S1 during steady state. The voltage is found to be constant at 50 V under closed loop operation.

Simulation results were also presented. The discussed converter can be used for battery charging and discharging operation as both stepping up and stepping down the input voltage can be done. There are various advantages for this particular topology such as wider step-up and wider step-down DC-DC conversion range, moderate component count, simple structure, high efficiency, smooth transition between operating modes, avoid operation in extreme duty cycle, can operate with broadly varying input source etc.

A disadvantage is the coupled inductor leakage causing transient and turn off voltage spikes across the switches. Switching losses. Maksimovic and S. Esam H. Enter the email address you signed up with and we'll email you a reset link.

Need an account? Click here to sign up. Download Free PDF. Boost converter psim simulation. Asma Parveen. A short summary of this paper. Download Download PDF. Translate PDF. Kotak2, V. Sunder Singh3 1 Research Scholar [Etrx. Professor, Dept. It is especially useful in boosting low solar panel voltage 12V to high voltage, so that V ac can be generated. At the time the efficiency is also high and it is cost effective. It is a transformer less topology.

This converter will work with input voltage of 12Vdc, and generate constant output voltage of Vdc with the help of PI controller. To achieve high voltage output gain the converter output terminal and boost output terminal are connected in serially with the isolated inductor with less voltage stress on controlled power switch and power diodes. PSIM software has been used for simulation. Keywords: High gain, boost converter, coupling inductor, PI controller. The coupled inductor technique provides solution to achieve a High boost dc-dc converter operating at high voltage high voltage gain, low voltage stress on the active switch, and regulation is mainly required in many industrial applications.

Thus High gain dc-dc boost converter play a important role in switching inductor boost type provides high gain and high renewable energy sources such as solar energy system, fuel efficiency. Solar energy has offered promising which induces high voltage spikes across the active switch , results in the quest of finding the solution to the problem.

The voltage stress on the industrial applications In addition, the design of high power transistor was clamped by the output voltage. The rectifier DC-DC converters and their Controller plays an important role diode should also withstand the output voltage.