"... 2.2.4 Percentages as size-neutral parameters: voltage and var calculations
As noted previously, because broadcast/multicast commands cannot necessarily know the size or capabilities of an inverter, the curve settings are generally in percentages of nominal or
nameplate values, rather than absolute values. That approach permits both small and large inverter-based DER systems to respond within their limits.
In particular, given this size-neutral and connection-point-neutral approach, inverters will need to calculate an effective percent value for the locally measured voltage as follows ..."
http://xanthus-consulting.com/Publicati ... 0-90-7.pdf"... 1.2.4 Percentages as size-neutral parameters: voltage and var calculations
As noted previously, because broadcast/multicast commands cannot necessarily know the size or capabilities of an DER system, the curve settings are generally in percentages of nominal or nameplate values, rather than absolute values. That approach permits both small and large DER system-based DER systems to respond within their limits.
In particular, given this size-neutral and connection-point-neutral approach, DER systems will need to calculate an effective percent value for the locally measured voltage as follows ..."
http://www.energy.ca.gov/electricity_an ... ns_v1.docx
Communication usually fails, except by accident (Osmo A. Wiio)