Vietnam Power System Harmonic Analysis

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Vietnam Power System Harmonic Analysis

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In the modern world, power is a necessary element of daily life. The bulk of ordinary items have some kind of power. We must make use of the most advanced energy technology to deliver power to people in a secure and economical manner. The loss increases because of harmonics increasing the circuit’s current flow’s RMS value. Many problems with the electricity grid have arisen as a result. The loads as well as the entire distribution system may be affected by harmonics. Moreover, harmonics may harm delicate machinery and appliances in a commercial or industrial setting. Harmonic dysfunction does not always become apparent right away, and it might even be mistaken for standard equipment wear and tear.

Definition of Harmonic Distortion:

Because harmonic problems are so small, having them might make the power system less dependable. Harmonics in electric current and voltage are to blame for power system problems. Equipment might malfunction or stop working if the power supply has a lot of harmonics. A nonlinear load typically causes harmonics, or changes in the current waveform’s shape, in an electrical system. Nonlinear loads and harmonics in power systems are caused by personal computers, variable speed motors, driven motors, fax machines, laser printers, Switch-mode power supplies (SMPS), batteries, and uninterruptible power supplies (UPS).

The Importance of Harmonic Analysis:

Power systems lose efficiency and efficacy due to harmonic. Your power system’s reliability will rise if you use harmonic analysis to find harmonics there. Due to the system loads, harmonics are formed as power electronics equipment utilization grows and currents no longer flow in a straight line. Less energy must be used by equipment, and it must meet energy efficiency standards.

When Did Harmonic Analysis Become Important?

The harmonic restrictions must be reviewed if the overall load or measurements of the bus system reach 25% of the total load.
To fix problems brought on by harmonics, such as equipment failures and damage.
How many non-linear loads will be added, and when will the plant be expanded?
Harmonic analysis is necessary when more capacitor banks are added to electrical systems.

The classification of the equipment	A harmonic outcome
Rotating equipment	Higher cable resistance, power loss, overheating, and pulsing torque.
Switchgear, a transformer, and power wires	Excessive consumption, overloading the neutral, overheating, and power losses
Batteries with capacitors	A failure with high current
Electric force	Inefficiency and failings
Protecting relays	Misconduct and annoying tripping

When a sinusoidal waveform is applied to a nonlinear load, distortion and harmonic generation occur in the system. Harmonic analysis is required to ascertain if a system has harmonics.

Power System Harmonics Mitigation Advantages:

Harmonic analysis lowers operational costs by lowering the amount of electricity lost by cables, switch gears, and safety equipment. It also aids in reducing losses in the power system.
It helps to eliminate excessive transformers and lowers the RMS current in the power system, which decreases the need for cable, switchgear, and busbars.
The company’s performance: Performance immediately improves as soon as losses are eliminated, and the RMS current value is decreased. Losses, the current’s RMS value, and the temperature of cables, transformers, motors, and capacitors all rise because of harmonics. The outcomes will not be good, and you could have to stop surgery or suffer financial losses as a result.

Steps to Take While Carrying Out a Power Quality Analysis:

Have a look at the one-line figure showing the nonlinear loads.
Keep your attention to the same connecting point (PCC).
Bringing to light the buses that may be affected by harmonics within the building.
Get as much data as you can on non-linear loads and the energy provider’s past harmonic performance.
Using ETAP (Electrical Transient Analysis Program) software and the electrical system’s performance, create a model.
Analyze the harmonics, the levels of voltage and current distortion.
Choose a remedy if the harmonic distortion level is too high.
Rerun the harmonic analysis after adopting the mitigating method to confirm CEC compliance.

To guarantee the security of your electrical equipment and give you a safe working environment, Care Labs supplies its personnel with the most up-to-date equipment. Find out more about the harmonic analysis and research services that Care Labs provides and get a quote right away.