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KUALA LUMPUR, Malaysia, July 10, 2026 /PRNewswire/ — Sungrow, the globally main PV inverter and power storage system supplier, efficiently accomplished full-condition grid-forming (GFM) exams on the Santong 100 MW/400 MWh Battery Power Storage System (BESS) venture in Malaysia, demonstrating how superior grid-forming expertise can improve grid resilience and help renewable power integration in Southeast Asia.
Santong 100 MW/400 MWh BESS
Not like standard grid-following methods that depend on exterior voltage and frequency references, grid-forming expertise allows power storage methods to actively help grid stability by way of capabilities comparable to black begin, islanded operation, digital inertia, and voltage-frequency regulation.
On the Santong venture, Sungrow accomplished 4 core dimensions of grid-forming (GFM) functionality, together with plant-level black begin, seamless on-grid/off-grid switching, large-capacity transformer switching, and lively grid help throughout grid-connected operation. The venture represents a landmark grid-forming power storage functions linked to Malaysia’s nationwide grid, offering a sensible reference for renewable-heavy energy methods throughout Southeast Asia.
4 Core Capabilities of System-Stage Grid-Forming
Transferring past conventional single-cabinet or limited-function exams, the venture carried out full plant-level closed-loop validation throughout a number of working situations. It verified the grid-forming system’s end-to-end capabilities, from lively voltage build-up to grid-connected help.
- 100 MW Plant-Stage Black Begin – Autonomous Grid Constructing
Underneath a situation the place the whole plant was utterly de-energized with no exterior voltage or frequency reference, Sungrow’s grid-forming PCS operated as an impartial voltage supply, autonomously performing zero-voltage start-up and quickly establishing a steady AC bus voltage. A number of converters concurrently fashioned the grid and shared energy equally, with no circulating present impression or machine tripping all through the method. This validated functionality gives a sensible pathway for utilities to strengthen grid restoration capabilities and enhance resilience in opposition to large-scale outages.
- Millisecond-Stage Seamless On-Grid/Off-Grid Switching
The check verified seamless on/off-grid switching beneath two important eventualities: instantaneous disconnection following a grid fault and re-synchronization throughout grid restoration. When the plant safety was triggered throughout full-load operation resulting from a grid fault, the system transferred from grid-connected operation to off-grid grid-forming operation with out load interruption or important voltage sag, sustaining steady energy provide to native masses.
- Frequent Massive-Capability Transformer Switching
The system demonstrated sturdy transient stand up to functionality beneath frequent large-capacity transformer switching, offering a sensible reference for substation retrofits and the mixing of power storage converters with ageing transformers in Southeast Asia.
Throughout the switching course of, the bus voltage prevented extreme collapse, and all tools remained steady and grid-connected, serving to decrease the technical limitations tooverseas plant retrofitting and grid connection.
- All-Situation Grid-Forming Assist
Underneath the weak grid situations of Malaysia’s East Coast with low short-circuit capability, the system demonstrated its potential to offer digital inertia, regulate voltage and frequency, and mitigate renewable energy fluctuations. The validation achieved complete protection of key grid-forming capabilities and compliance with the most recent TNB grid connection necessities.
The Santong plant accomplished all exams in a single run, backed by Sungrow’s 20 years of system-level grid-forming experience.
Sungrow adopts full-plant coordinated system structure. Deeply built-in wind, photo voltaic and BESS management methods eradicate logic conflicts arising from mixed-brand tools meeting. Tailor-made to Malaysia’s grid challenges, together with excessive humidity, fluctuating grid power, and multi-PV coupling resonance, its full-band oscillation suppression algorithm delivers superior energy high quality and system stability.
Picture Credit score: Courtesy of Tenaga Nasional Berhad (TNB).
CONTACT:
WangLuly
luly.wang@sungrow-hq.com
15618330862
