Panama (Código de Redes Fotovoltaico 2017) — ride-through requirements

The LVRT, HVRT, FRT envelopes a grid-scale battery must meet under Panama (Código de Redes Fotovoltaico 2017), digitized breakpoint by breakpoint and checked against the clause it came from.

By Sergey Syrvachev — Director of Product Engineering, grid-scale BESS · 10+ GWh delivered

Part of: the grid-code ride-through chart — compare this against 63 other standards in 42 countries.

What this is, and is not. A reading aid compiled from the clause cited below — not a compliance document. The primary text governs. Some values on this page are marked partial: the level is confirmed but at least one duration step could not be read directly from the source.

Breakpoints

Times are seconds from the start of the disturbance. Voltage is per-unit of nominal; frequency in hertz. An LVRT curve is a lower boundary (stay connected while voltage is on or above it), an HVRT curve an upper boundary, and FRT gives the band between its High and Low boundaries. These are the boundaries, not the behaviour: what holding one demands of the converter — reactive current injection, thermal stress, protection timing — is stepped through in the LVRT / HVRT ride-through visual.

EventDutyBreakpointsStatus
low-voltage ride-through (LVRT)ride-through0.001s → 0 pu; 0.15s → 0 pu; ↗ 2.2s → 0.9 pu; 7s → 0.9 puverified
high-voltage ride-through (HVRT)ride-through0.001s → 1.2 pu; 2.2s → 1.2 pu; 2.201s → 1.1 pupartial
frequency ride-through (FRT)ride-throughHigh: 0.1s → 61.7 Hz; 30s → 61.7 Hz; 30.001s → 61.5 Hz; 180s → 61.5 Hz; 180.001s → 60.5 Hz | Low: 0.1s → 57.2 Hz; 0.75s → 57.2 Hz; 0.751s → 57.4 Hz; 7.5s → 57.4 Hz; 7.501s → 57.9 Hz; 30s → 57.9 Hz; 30.001s → 58.5 Hz; 180s → 58.5 Hz; 180.001s → 59.5 Hzverified

Where these values come from

  • LVRTASEP/CND Panamá, 'ANEXO B — CÓDIGO DE REDES FOTOVOLTAICO (Texto Unificado)', Diciembre 2017, numeral B.1.2 lit. c) 'Capacidad de Fault Ride Through (FRT)' y Figura B.1.2.
  • HVRTASEP/CND Panamá, 'ANEXO B — CÓDIGO DE REDES FOTOVOLTAICO (Texto Unificado)', Diciembre 2017, numeral B.1.2 lit. c) y Figura B.1.2 (curva azul HVRT); continuous band from B.1.1 lit. a) / B.1.2 lit. b).
  • FRTASEP/CND Panamá, 'ANEXO B — CÓDIGO DE REDES FOTOVOLTAICO (Texto Unificado)', Diciembre 2017, numeral B.1.1 lit. b), Tabla B.1 'Rangos de operación por Frecuencia'.

Last checked against the source document on .

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