IEEE Std 1547-2018 pdf download

IEEE Std 1547-2018 pdf download.IEEE Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces.
a) Voltage disturbance ride-through requirements specified in 6.4.2
b) Frequency disturbance ride-through requirements specified in 6.5.2
C) Interoperability, information exchange, information models, and protocols specified in Clause 10
d) Intentional islanding requirements specified in 8.2
and may cease to energize the Area EPS or may separate from the Area EPS without limitations.
4.13.2 Exemptions for standby DER
A DER that is only being operated in parallel to the Area EPS:
For testing purposes only and tests are not performed more frequently than 30 times per year; or During load transfer in a period of less than 300 s to or from the Area tiPS,
shall be exempt from the following:
a) Voltage disturbance ride-through requirements specified in 6.4.2
b) Frequency disturbance ride-through requirements specified in 6.5.2
c) Interoperability, information exchange, information models, and protocols specified in Clause 10
d) Intentional islanding requirements specified in 8.2
and may cease to energize the Area EPS or may separate from the Area EPS without limitations.
5. Reactive power capability and voltage/power control requirements
5.1 Introduction
Different characteristics and capabilities for response to voltage variations within the normal operating range are specified in certain parts of this subclause for normal operating per/brmance Category A and Category B DER.59 Table 6 specifies the attributes of voltage and reactive power control requirements specified in 5.3 and the voltage and active power control requirements specified in 5.4 to performance Category A and Category B DER. Under mutual agreement between Area EPS operator and DER operator, requirements other than those specified below are also permitted.
The Area EPS operator shall specify the DER performance category that is required. Guidance regarding the assignment of performance categories is provided in Annex B of this standard covering DER type, application purpose, and Area tiPS characteristics.
The requirements of this subclause apply to the continuous operation region when the voltage is between 088 and I . I times the nominal voltage (VN). Continued operation of functions defined in Clause 5 outside of the continuou.c operation region may be acceptable to support functions covered in 6.4. During abnormal voltage conditions, this reactive power range shall be provided subject to the limitations of the DER. The DER shall return to its pre-disturbance operating mode after the system voltage returns to its normal range.
The DER shall not cause the Area EPS primary circuit voltage at any location to go outside the requirements of ANSI C84. I for primary service voltage.
5.3 Voltage and reactive power control
5.3.1 General
The DI3R shall provide voltage regulation capability by changes of reactive power. The approval of the Area EPS operator shall be required for the DER to actively participate in voltage regulation.
The voltage and reactive power control functions do not create a requirement for the DER to operate at points outside of the minimum reactive power capabilities specified in 5.2.
The DER shall, as specified in Table 6, provide the capabilities of the following mutually exclusive modes
of reactive power control functions:
— Constant power factor mode
— Voltage-reactive power mode Active power-reactive power mode
— Constant reactive power mode
The DER shall be capable of activating each of these modes one at a time.
Constant power factor mode with unity power factor setting62 shall be the default mode of the installed DER unless otherwise specified by the Area EPS operator.
The DER operator shall be responsible Ibr implementing setting modifications and mode selections, as specified by the Area EPS operator within a time acceptable to the Area EPS operator. Under mutual agreement between the Area EPS operator and DER operator, reactive power control modes and implementations other than the ones listed above and described below shall be permitted.
Emergency or standby DERs as specified in 4.13 shall only be required to operate in constant power factor mode.