Application of a Source-Grid-Load-Storage Intelligent Fusion Terminal in Power Grid Dispatch Optimization
DOI:
https://doi.org/10.13052/spee1048-5236.4513Keywords:
Source-grid-load-storage collaborative optimization, intelligent fusion terminal, real-time power grid dispatch, renewable energy consumptionAbstract
With the large-scale integration of renewable energy into the power grid, uncertainty on both the supply and demand sides increases significantly. The traditional centralised dispatch model increasingly exposes limitations in real-time responsiveness, mitigating large fluctuations and accommodating intermittent wind and solar output of wind and solar power. Concurrently, increasingly complex load dynamics and the activation of distributed flexibility resources on the customer side have pose significant challenges to grid operations, including narrower regulatory margins, greater risks of voltage deviations, and increased difficulties in achieving safe and economic coordination. This study proposes deploying edge-mounted intelligent fusion terminals that integrate power generation, transmission, load, and storage. These terminals are designed to enhance dispatch responsiveness and coordinated control under conditions of high renewable penetration. These terminals combine high-speed data acquisition, edge intelligent computing, and rapid collaborative control capabilities to aggregate multidimensional system-state information, perform millisecond-level device sensing, and generates real-time dispatch instructions through precise localisation and intelligent decision-making. Experimental validation under a representative scenario (20% daily renewable penetration and 30% peak-to-valley load difference) demonstrated significant performance improvements relative to a conventional dispatch system. The intelligent fusion terminals increased system adjustment speed by about 4.5 times, reduced load-tracking deviation by 78.2%, and improved ramping capability by over 70%, reducing required load shedding by up to 92%. Coordinated optimisation of storage charging/discharging and interruptible load response suppressed voltage fluctuations, maintaining the deviation rate within ±0.8% and increasing the voltage stability margin at critical nodes by 23%. In addition, average peak-hour network loss decreased by about 1.2 kW, renewable energy utilisation improved, and wind/solar curtailment fell by 23%. The collaborative optimisation model enabled by the intelligent fusion terminal offers a practical technical pathway toward a more resilient power grid and accelerated energy transition, demonstrating significant value for modern dispatch systems.
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