Technical terms
DE | EN | Description |
|---|---|---|
Abtastrate | Sampling rate | Frequency that measured values are recorded at |
Akkreditiertes Prüflabor | Accredited test lab | Notified body with formal certification |
Anlagenzertifikat | System certificate | Confirmation that a point of connection for a PGP conforms by a certificate authority |
Anschlussnehmer | Connection owner | Operator/operators of the electrical system at the point of connection |
Automatische Wiedereinschaltung | Automatic reconnection | Function for switching back on after a grid fault |
Bemessungs | Nominal apparent power | Nominal value for the maximum apparent power |
Bilanzkreis | Balancing responsible party (BRP) | Responsible for balancing (infeed vs. output) |
Blindleistung (Q) | Reactive power (Q) | Share of energy that oscillates between source and load |
Blindleistungsregler (Q-Regler) | Reactive power controller (Q controller) | Controls the reactive power (Q) for voltage support or grid service |
Blockheizkraftwerk (BHKW) | Cogeneration plant (CHP) | Combined heat and power generation |
Direktvermarkter (DVM) | Direct marketing company (DMC) | Market participants for electricity marketing |
Echtzeit | Real time | Data processing with defined time behavior |
Erzeugungsanlage (EZA) | Power generating plant (PGP) | Total of all power generating units at a point of connection |
Erzeugungseinheit (EZE) | Power generating unit (PGU) | Individual system for electricity generation within a power generating plant |
EZA-Regler | PGP controller | Controls feed-in according to grid specifications |
Frequenz | Frequency | Grid frequency, generally 50 Hz in Europe |
Gleichstromanteil | DC component | Direct current component in an alternating current measurement |
Harmonische | Harmonics | Harmonics in the grid (multiples of the base frequency) |
Messdatenerfassung | Measurement data acquisition | Measuring electrical variables |
Messmittelwert | Measured mean value | Mean value over time window |
Mittelspannung | Medium voltage (MV) | Typically 1–36 kV grid level |
Momentanwert | Instantaneous value | Directly measured variable without averaging |
Nennspannung | Nominal voltage | Reference value for voltage in a grid system |
Netzanschlusspunkt (NAP) | Point of connection (POC) | Physical transfer point to the grid |
Netzbetreiber | Grid operator | Responsible for the operation and expansion of a grid |
Netzfrequenz | Grid frequency | Number of voltage changes per second |
Netzqualität | Power quality | Evaluation of electrical parameters in the grid |
Netzschutz | Grid protection | Assurance of grid-compatible operation |
Netzverknüpfungspunkt (NVP) | Point of common coupling (PCC) | Evaluation location for grid perturbation |
Oberschwingungen | Harmonics | Voltage and current components above the base frequency |
Phasenwinkel | Phase angle | Angle between voltage and current |
Photovoltaikanlage (PV) | Photovoltaic system (PV) | Power generation using solar cells with inverter |
Regeldifferenz | Control error | Deviation between setpoint and actual value |
Schaltanlage | Switchgear | System for the control and fuse protection of electrical energy |
Schutzgerät | Protective device | Responds to error states in the grid |
Schutzrelais | Protective relay | Component for fault detection and tripping |
Schutzsystem | Protective system | Combination of relays, logic, measurement, and actuators |
Spannungseinbruch | Voltage sag | Short-term reduction of the grid voltage |
Speicher | Storage unit | Energy unit with charging and discharging capability |
Synchronisierung | Synchronization | Synchronization of time or frequency between systems |
Transformatorstation | Transformer station | Station for transforming voltage between grid levels |
Transient recorder | Transient recorder | Records faults in high temporal resolution |
Verteilnetzbetreiber (VNB) | Distribution system operator (DSO) | Responsible for medium/low-voltage grid |
Virtuelles Kraftwerk | Virtual power plant (VPP) | Network of controllable decentralized generation systems |
Wirkleistung (P) | Active power (P) | Power that actually performs work |
Wirkleistungsregler (P-Regler) | Active power controller (P controller) | Controls the active power |
Zeitstempel | Timestamp | Marks a data value with a time |
Zwischenharmonische | Interharmonics | Frequencies between integer multiples of the base frequency |
Übertragungsnetz-betreiber (ÜNB) | Transmission system operator (TSO) | Responsible for the high-voltage grid |