How does an Uninterruptible Power Supply (UPS) work?
Uninterruptible power supply
An uninterruptible power supply is a system of power electronics which is used to provide an electrical or electronic system with a stable power supply without interruptions or micro-interruptions, whatever happens on the electrical network.
An uninterruptible power supply (or ASI, or in English UPS, Uninterruptible Power Supply) is a system of power electronics which is used to provide an electrical or electronic system with a stable power supply without any cut or micro-cut, whatever happens on the power grid.
Constitution
It consists of the cascading of a rectifier assembly, an energy storage system (accumulator battery, supercapacitors, flywheel, etc.) and an operating inverter or "mutator". at fixed frequency.
The term inverter is often used to designate this type of power supply. This is the case, for example, with inverters that are inserted between the distribution network and the servers of a data center.
Storage
Energy storage can be done in different forms:
in chemical form (accumulator battery), we speak of BESS for Battery Energy Storage System;
in electrical form (in supercapacitors or superconducting coils), we then speak of “SMES” for Superconducting Magnetic Energy Storage;
in mechanical / kinetic energy form (use of a synchronous machine connected to the network taking over in the event of an outage), this is referred to as a kinetic accumulator, or Dynamic UPS / D-UPS / Dynamic Uninterruptible Power Supply);
in the form of compressed gas.
Generation
The current from these energy reserves is continuous. Either immediately (chemical or electric accumulators), or via a rectifier stage for the kinetic accumulators (the frequency of the alternating current naturally generated by the latter fluctuates with the discharge of the accumulator and cannot therefore be used directly to supply a load at 50 Hz or 60 Hz).
Two technologies are present on the market for the inverter or mutator part.
Static technology (applying to static inverters) in which the output alternating voltage of the UPS is produced from direct current from the energy reserve through high frequency switched transistors to reconstruct a sinusoidal signal from the continuous signal.
Dynamic technology (applying to dynamic inverters or "rotary UPS") in which a synchronous machine is used (like an alternator) to generate the output alternating current
How does an Uninterruptible Power Supply (UPS) work?
Uninterruptible power supply
An uninterruptible power supply is a system of power electronics which is used to provide an electrical or electronic system with a stable power supply without interruptions or micro-interruptions, whatever happens on the electrical network.
An uninterruptible power supply (or ASI, or in English UPS, Uninterruptible Power Supply) is a system of power electronics which is used to provide an electrical or electronic system with a stable power supply without any cut or micro-cut, whatever happens on the power grid.
Constitution
It consists of the cascading of a rectifier assembly, an energy storage system (accumulator battery, supercapacitors, flywheel, etc.) and an operating inverter or "mutator". at fixed frequency.
The term inverter is often used to designate this type of power supply. This is the case, for example, with inverters that are inserted between the distribution network and the servers of a data center.
Storage
Energy storage can be done in different forms:
in chemical form (accumulator battery), we speak of BESS for Battery Energy Storage System;
in electrical form (in supercapacitors or superconducting coils), we then speak of “SMES” for Superconducting Magnetic Energy Storage;
in mechanical / kinetic energy form (use of a synchronous machine connected to the network taking over in the event of an outage), this is referred to as a kinetic accumulator, or Dynamic UPS / D-UPS / Dynamic Uninterruptible Power Supply);
in the form of compressed gas.
Generation
The current from these energy reserves is continuous. Either immediately (chemical or electric accumulators), or via a rectifier stage for the kinetic accumulators (the frequency of the alternating current naturally generated by the latter fluctuates with the discharge of the accumulator and cannot therefore be used directly to supply a load at 50 Hz or 60 Hz).
Two technologies are present on the market for the inverter or mutator part.
Static technology (applying to static inverters) in which the output alternating voltage of the UPS is produced from direct current from the energy reserve through high frequency switched transistors to reconstruct a sinusoidal signal from the continuous signal.
Dynamic technology (applying to dynamic inverters or "rotary UPS") in which a synchronous machine is used (like an alternator) to generate the output alternating current
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