西门子GMC(变频器/伺服驱动) 代理|安庆PLC模块总代理

西门子GMC(变频器/伺服驱动)  代理|安庆PLC模块总代理

西门子GMC(变频器/伺服驱动)  代理|安庆PLC模块总代理

西门子GMC(变频器/伺服驱动)  代理|安庆PLC模块总代理

Establishing efficiency classes of frequency converters (CompleteDrive Modules CDM)

To avoid overmodulation and to ensure comparability between makes,which cannot be achieved otherwise, the efficiency classes of CDMsrefer to the 90/100 operating point (90 % motoruency, 100 % torque current).

Standard IEC 61800‑9‑2 defines the relative losses of a CDM inefficiency classes IE0 to IE2. With reference to the value of a CDMof efficiency class IE1 (reference converter), a CDM of efficiencyclass IE2 has 25 % lower losses and a CDM of efficiency classIE0 has 25 % higher losses.

The publication of EU Directive 2019/1781 makes compliance with theeco-design re for the product declaration of conformitymandatory.
AC/AC transformers, that belong to the aforementioned categories(specific voltage and performance level without regenerativefeedback capability), must meet efficiency class IE2, in order tobe authorized for installation/use within the EU.

Operating points forCDMs

G_D011_XX_00468

Complete Drive Module (CDM) – determining the efficiency class

Establishing the efficiency classes of drive systems (Power DriveSystems PDS)

What is possible for the individual systems, of course, alsoapplies to the entire electrical PDS (frequency converter plusmotor). Detailed comparisons are now possible at this level, too.The reference values for the reference system provide clearindications of the energy performance of the PDS.

Because targeted matching of the motor and CDM provides additionalpotential for optimization in electrical drive systems, it isespecially important for the user to consider the entire drivesystem.

For the efficiency class of a PDS, too, a specific load point isdefined. In this case, the reference point used is the 100/100operating point (100 % motor stator frequency, 100 %torque).

Standard IEC 61800‑9‑2 defines the relative losses of a PDS inefficiency classes IES0 to IES2. With reference to the value of aPDS of efficiency class IES1 (reference drive), a PDS of efficiencyclass IES2 has 20 % lower losses and a PDS of efficiency classIES0 has 20 % higher losses.

Operating points forPDS

G_D011_XX_00469

Power Drive System (PDS) – determining the efficiency class