
1.Vikundi:
Vitufe viya vya kawaida (VTs) katika mifumo ya GIS mara nyingi huchukua utaratibu wa kutazama kwa mikono, ambao unaweza kuwa na matatizo mawili muhimu:
- Kujidhi Uwezo wa Kufunga Matatizo Mapema: Mfumo wa GIS unaohifadhiwa kwa chane huonyesha changamoto katika kutambua matatizo mapema kama PD ndani, upungufu mdogo wa ukasi wa SF6, na ongezeko la joto la kisawa.
- Uwezo mdogo wa Kutaja Majibu: Muda mrefu wa kutazama kwa mikono (wiki/miezi) unaweza kusababisha matatizo yasiyotarajiwa kama kuvunjika kwa insulation au kuteleza chane kutokea bila taarifa, kusababisha kutolewa kati ya umeme.
- Gharama za O&M Kubwa: Kutest na huduma za kawaida zinachukua nguvu na rasilimali nyingi, na kuna hatari ya over-maintenance na under-maintenance.
2. Suluhisho: Mfumo wa Huduma ya IOT
Kutokana na matatizo haya, suluhisho hili linanipanga mtandao wa uchunguzi wa akili unaoelekea muda mzima wa GIS-VTs:
(1) Sauti ya Kutosha:
- Mashirika ya Precision: Vipe vitufe vya precision kwenye kituo muhimu cha VT (kama vile majengo ya high-voltage, karibu na spacers, mwili wa gas compartment):
- Vitufe vya PD: Vitufe vya CT au UHF vinapatia data ya real-time kuhusu kuvunjika kwa insulation.
- Vitufe vya Ukasi wa Gas & Moisture: Vinatobea kwa muda kutazama mabadiliko ya ukasi, density, na moisture content ya SF6.
- Vitufe vya Joto: Vinapatia data ya real-time kuhusu ongezeko la joto la sawa la connection na enclosures.
- Uwasilishaji wa Roho: Data ya vitufe vinapowasilishwa kwa muda kwa cloud monitoring platform kwa kutumia mitandao ya wireless au fiber optic, ili kukuhakikisha kwamba data ni sahihi na kamili.
(2) Platform ya AI-Powered Analytics:
- Fusion ya Big Data: Platform inajumuisha data ya real-time na information za kiwango tofauti kama historia ya operation/maintenance, database ya matatizo ya mifano ya mifumo, na masharti ya mazingira (load, joto).
- AI Diagnostic Engine:
- Feature Extraction: Inapatia data ya PD patterns, gas leakage trend curves, na temperature anomaly correlation maps.
- Deep Learning Prediction: Hutumia algorithms kama LSTM na Random Forest kutengeneza models ya prediction, kuhesabu health indices (HI) na remaining useful life (RUL).
- Precise Early Warning: Hupredikta matatizo kama "insulator surface discharge degradation" au "gas micro-leakage due to seal ring aging" kwa muda wa siku 7 zaidi, na accuracy rate ya zaidi ya 92%.
(3) Dashboard ya Visualized O&M:
- Panoramic Visualization: Inatoa overview ya health status ya multi-level (GIS equipment, bay, individual VT), kusaidia management moja kwa moja ya rekodi za assets, data ya real-time, historical trends, na alarm information.
- Intelligent Work Order Dispatch: Huunda na kutuma work orders sahihi kutegemea na warning levels na prediction results (kama vile "Phase A VT: Recommend PD retesting and seal inspection within 3 days"), optimization ya allocation ya resources.
- Knowledge Accumulation: Hunategemea automatic fault analysis reports, kunijenga O&M knowledge base, na kuendeleza model optimization.
3. Faidesi Muhimu
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Indicator
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Improvement
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Realized Value
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Reliability ya Equipment
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≥40% reduction in sudden failure rate
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Prevents major outages, ensures grid backbone stability
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O&M Efficiency
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35% reduction in unplanned repair orders
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Staff focus on critical areas, efficiency multiplied
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O&M Costs
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≥25% reduction in overall O&M costs
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Reduces ineffective inspections & over-maintenance, optimizes spare parts inventory
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Availability ya Equipment
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≥99.9% annual comprehensive availability
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Supports grid's high power supply reliability targets
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Decision Making
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Data-driven precision decisions
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Transitions from "scheduled maintenance" to "precision maintenance", extends equipment life
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4. Case ya Reference
- Cluster ya Mifumo ya GIS ya 500kV Hub Substation: Baada ya deployment ya mfumo, lilitumaini warnings mapema kwa 3 potential VT insulation faults (2 floating discharges, 1 gas compartment seal anomaly), na lead times wa 8-14 siku, kuzuia hasara kubwa. Gharama za maintenance za mwaka iliyopita imepungua kwa asilimia 28%, na frequency ya forced outage ya equipment imeingia kwa zero.