In the HVDC generation system, there are different conventional methods for generating High Voltage DC. Rectifier circuits for producing high DC voltage from AC sources may be (a) Half-wave rectifier, (b) Full-wave rectifier, (c) Voltage doubler circuit, and (d) Cascaded voltage doubler.A boost converter or step-up converter aids in stepping up a DC voltage from the input to the output. The conduction state of the switch dictates the operation of the circuit. During the on-state, the current flowing through the inductor increases linearly.

1. High voltage mechanical energy can be converted into electrical energy using generators and alternators.
2. To create high voltages, AC or DC can be fed into a transformer through a switching circuit (also known as a switch-mode power supply).

How is HV generated : Hence, for producing very high voltages, a bank of capacitors are charged in parallel and then discharged in series. The arrangement for charging the capacitors in parallel and then connecting them in series for discharging was originally proposed by Marx.

Why do we generate high DC voltage

HVDC lines are commonly used for long-distance power transmission, since they require fewer conductors and incur less power loss than equivalent AC lines. HVDC also allows power transmission between AC transmission systems that are not synchronized.

Will DC generator generate a higher voltage : The essential difference between an AC generator and a DC generator is that. AC generator has an electromagnet while a DC generator has a permanent magnet. DC generator will generate a higher voltage.

However, direct current is generated by photovoltaic cells and batteries. Direct current generators are rare in major power plants due to the prevalent use of alternating current over direct current in transmission lines. Direct current generation is therefore limited mainly to small-scale generators.

Adding another battery in parallel would allow the resulting battery to provide more current as the load increases. It can allow the motor to produce a higher torque if the engine's winding resistance is much lower than the internal resistance of the battery set.

How do you convert low voltage DC to high voltage DC

There are different types of low voltage DC to high voltage DC converters, including boost converters, flyback converters, and buck-boost converters. Boost converters are the most common type and work by storing energy in an inductor and then releasing it when the voltage needs to be increased.A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a hollow metal globe on the top of an insulated column, creating very high electric potentials. It produces very high voltage direct current (DC) electricity at low current levels.define high voltage as above 1000 V for alternating current, and at least 1500 V for direct current. In the United States, the American National Standards Institute (ANSI) establishes nominal voltage ratings for 60 Hz electric power systems over 100 V.

The main cause of these voltage surges in power system are due to lightning impulses and switching impulses of the system. But over voltage in the power system may also be caused by, insulation failure, arcing ground and resonance etc.

Which generates high voltage AC or DC : AC generators produce a high voltage which varies in amplitude and time. The output frequency varies (mostly 50Hz to 60Hz). DC generators produce a low voltage when compared to AC generator which is constant in amplitude and time i.e. output frequency is zero.

Can a generator produce DC current : A generator is produce dc current from the mechanical energy of rotation energy. Its main principle is the theory of electromagnetic induction. When a conductor rotates on a magnetic field, the current will induce in the conductor.

Why we Cannot use DC current

Power loss during transmission is more in direct current as compared to alternating current. For the same value of voltage DC is more dangerous than AC. It will more troublesome if touched because the voltage does not go through zero.

Boost converters provide a versatile solution to stepping up DC voltages in many applications where a DC voltage needs to be increased without the need to convert it to AC, using a transformer, and then rectifying the transformer output.All DC motors will draw higher current when the rotor is stopped (“locked-rotor current”). This is because every DC motoer also functions as a generator, producing a voltage that opposes the external voltagem (“back EMF”).

How to increase DC voltage from 12V to 24v : To increase 12 volts to 24 volts, you will need to use a boost converter or a fixed-voltage step-up regulator, which is basically just a boost converter set to a specific voltage and usually installed in some sort of housing.