When managing large electrical loads, especially those reaching up to 3kW, it is critical to consider the impact on the wider electrical system. Phase angle control methods, often employed by devices to regulate power, can inadvertently introduce unwanted harmonic currents into the power system. These harmonics are distortions in the electrical waveform that can lead to several detrimental effects, including:
- Electrical and radio interference: Harmonics can disrupt communication systems, leading to noise or interference in radio signals and other communication equipment.
- Overheating: Excessive harmonic currents generate additional heat in electrical components, reducing their efficiency and potentially leading to premature failure.
- Equipment damage: Devices such as inverters and other sensitive electrical equipment are particularly vulnerable to the stress caused by harmonics, which can degrade performance or cause permanent damage.
The eddi Advantage
The eddi stands apart in its category as a highly compliant and efficient energy management device. One of its key innovations lies in its utilisation of Pulse Width Modulation (PWM), specifically a varisine control method. This approach offers superior performance by mitigating the issues associated with phase angle control.
How PWM Addresses Harmonic Issues
Unlike phase angle devices, PWM works by rapidly switching the power on and off to modulate the energy flow. This method provides a more precise and smooth delivery of power, significantly reducing the introduction of harmonics into the electrical system. By employing this advanced technology, the eddi ensures compliance with rigorous standards for electromagnetic compatibility (EMC).
Legal Compliance and Standards
The eddi is one of the few devices on the market to meet the stringent requirements for harmonic current emissions, as mandated by international regulatory standards. These standards are critical to ensuring that electronic devices can coexist within the same power system without causing undue interference or damage to one another. Key benefits of the eddi’s compliance include:
- Enhanced system reliability: By minimising harmonics, the eddi helps protect the integrity of the entire power network.
- Extended equipment lifespan: Reduced harmonic stress translates to longer operational life for connected devices.
- Improved electromagnetic compatibility: The eddi operates within defined EMC limits, ensuring that it does not interfere with other electronic devices in its vicinity.