Taiwan (TPC) — ride-through requirements

The LVRT, HVRT, FRT envelopes a grid-scale battery must meet under Taiwan (TPC) (Taiwan), 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. Every value here was read from a current primary 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.

Event Duty Breakpoints Status
low-voltage ride-through (LVRT) ride-through 0.001s → 0 pu; 0.15s → 0 pu; 0.151s → 0.045 pu; 0.435s → 0.135 pu; 0.72s → 0.225 pu; 1.005s → 0.315 pu; 1.29s → 0.405 pu; 1.575s → 0.495 pu; 1.86s → 0.585 pu; 2.145s → 0.675 pu; 2.43s → 0.765 pu; 2.715s → 0.855 pu; 3s → 0.9 pu verified
high-voltage ride-through (HVRT) ride-through 0.001s → 1.2 pu; 0.25s → 1.2 pu; 0.251s → 1.15 pu; 1s → 1.15 pu; 1.001s → 1.1 pu verified
frequency ride-through (FRT) ride-through High: 0.1s → 62 Hz; 300s → 62 Hz; 300.001s → 61.5 Hz | Low: 0.1s → 57 Hz; 20s → 57 Hz; 20.001s → 57.5 Hz; 300s → 57.5 Hz; 300.001s → 58.5 Hz verified

Where these values come from

  • LVRT 台灣電力公司 儲能系統併聯技術要點 (issued 2020-03-06, amended 2025-09-05), clause (二)1: '電壓降低至 0 p.u. 時，持續運轉時間應至少 0.15 秒', figure 附圖二 低電壓持續運轉能力示意圖 (0 pu to 0.15 s, ramp to 0.9 pu at 3.0 s, flat thereafter). Same curve = 再生能源發電系統併聯技術要點 附圖三.
  • HVRT 台灣電力公司 儲能系統併聯技術要點 (amended 2025-09-05), clause (二)2: '電壓驟升至 1.2 p.u. 時，持續運轉時間應至少 0.25 秒；電壓驟升至 1.15 p.u. 時，持續運轉時間應至少 0.75 秒' + 附圖三 高電壓持續運轉能力示意圖. Identical to 再生能源發電系統併聯技術要點 附圖四.
  • FRT 台灣電力公司 儲能系統併聯技術要點, clause (十)2 高頻率持續運轉能力(HFRT): '頻率介於 61.5 至 62.0 Hz 時，持續運轉時間應至少 5 分鐘' + 附圖六 高頻率持續運轉能力示意圖 (62.0 Hz to 5 min, then 61.5 Hz). Continuous band = nominal ±2.5% (58.5-61.5 Hz), clause (十).

Last checked against the source document on .

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