Intelligent Upgrade Solution for Outdoor VT/PT: Smart Sensing Hub in New Power Systems Solúid Nuashonraithe Cliste do VT/PT Amuigh: Ionad Sinséimeanna Cliste i Nua-Íoctha Comhshaoil

2yrs + staff 1000+m² US$300,000,000+ China

I. Seoltas agus Líon Tuiscint Teicniúil
Ag an stád criochta den fhorbairt ó thógáil gréasáin inntiúnach go dtí gréasán fuinnimh digiteach, d'easpónaíonn an tionscadal seo transformáil a dhéanamh ar Voltage Transformers (VT/PT) taobh amuigh chun príomhbhaicéad a bheith acu sa lóscáráil fisiceach de shuimeanna inntiúnacha. Trí teicnící saincheannála, cumarsáid IoT, agus eolaíocht ríomhaireachta a chumasc, éiríonn leis náireabhtaithe a dhéanamh i dhá scuaine: feasacht ar stádas na ndeise agus rialú ar oibriú, ag tacú le hionstraim a dhéanamh ar córais seoladh agus cosaint an ghréasáin ina bhfuil sé bunaithe ar sonraí.

II. Tógáil Teicniúil Cúrsaí

Cumasc Digiteach De Bharr Go Barr

Mód Teicniúil	Feidhmiú Forbairt
Comhaid Dhigiteacha Inbhuanaithe	Comhaid dhigiteacha forbartha faoi choinne IEC 61850-9-2LE, a mheastar go díreach le Merging Units (MU)
Réabhlóid Saincheannála Leictre	Úsáideann aonaid saincheannála diviseoireachta capacitif, ag eisiúint siogáin go dígitíoch (Modaireacht: Class 0.2)
Taca Teicniúil Oscailte	Coibhneasach le IEEE C37.118.2 / GB/T 32890 agus coipeanna eile, ag díchúlú siloí comhréiteach

Innealtóireacht Diagnais Intelligeantachta Críocha

Treoir Anailíse trí Chéim: Sonraí bunúsacha leictre → Nod ceardaíochta críocha a bhfuil feidhmniú de réir a chur chuige → Tionchar doimhne ar an bpianfort clúid
Moideile Meabhairithe Forbairt: Córas measúnachta sláinte bunaithe ar algoritmaí LSTM-RNN, ag cumas:
▶ Ráta íoschúise insilgeachta (níos mó ná 92% cruinneas ráta 7 lá roimh ré)
▶ Anailís adharcach ar fholús meicniúil (Tacaíonn le suíomh SF6 le cruinneas ±0.5kPa)
▶ Aithne a dhéanamh ar paiseáin reatha (Cruinneas a bheith in líne le IEC 60270 Standard Class III)

III. Creidmheas Sistémach

Forbairt Rialú Gréasáin

Athraithe ar a laghad go ~15ms (40% níos fearr ná tionscadail traidisiúnta)
Cruinneas síochánta Phasor Measurement Unit (PMU) ≤ ±0.01°
Tacaíonn le cinntí compansála neamhspleách ar milliseocad

Bainistíocht Lean Assets

Dimensión Monatóire	Mearshonaí Diagnais Cúrsaí	Feidhmiú Teicniúil	Sochar Bheatha
Meastachán Fad Beatha Insilgeachta	▪ Curv Degree of Polymerization (DP) ▪ Comhthéacs furfural (Roghnú ≥0.1mg/L) ▪ Factor Dissipation (tanδ growth rate)	Sensor chromatography oil inbhuanaithe + On-line pyrolysis monitoring unit	▶ Cost reduction maintenance ≥35% ▶ Insulation failure warning 6-8 months in advance ▶ Life prediction error <3 years
Monatóireachta Stádas Meicniúil	▪ Luachanna eigen speachtrum vibráide (Speachtmhar band 0.5-2.5kHz) ▪ SF6 density gradient (≤ ±5% nominal value)	Micro MEMS accelerometer + Laser density sensor array	▶ Unplanned outages reduced ≥60% ▶ Mechanical fault location accuracy ±0.3kPa ▶ Seal failure detection rate ≥98%
Adaptáil Cúpláil Comhshaoil	▪ Coeficiúnt cúpláil Teocht-Aimsir (Compensation accuracy 0.05℃/%RH) ▪ Equivalent Salt Deposit Density (ESDD)	Nano-coated temperature/humidity sensor + On-line leakage current analysis module	▶ False alarm rate in extreme conditions down ≥75% ▶ External insulation assessment efficiency improved ≥4x ▶ Cleaning cycle optimized ≥35%
Monatóireacht Partial Discharge (PD)	▪ UHF/TEV combined discharge pattern (PRPD phase-resolved pattern) ▪ Discharge magnitude (pC) / Repetition rate (n/s)	UHF antenna array + Transient Earth Voltage (TEV) sensors	▶ Early detection rate for insulation defects >97% ▶ PD type recognition accuracy Class II ▶ Testing cost savings ≥50%

Tacaíocht do Shistím Fuinnimh Nua
Tógáil "Device-Edge-Cloud" system cothrom:

Device Side: Each VT/PT forms an independent sensing cell.
Edge Side: Substation-level smart analysis host enables regional collaboration.
Cloud Platform: Supports 3D digital twin for the health status of grid-wide devices.

IV. Cosán Forbairt Innealtoireachta

Hardware Deployment
o Plug-and-Play intelligent component enclosure (Protection class IP68)
o Modular monitoring units support hot-swap replacement
o Passive wireless sensor clusters (reducing wiring complexity by 60%)
Data Integration
Transition Strategy
Provides retrofit kits for traditional electromagnetic PTs:
o External Smart Adapter (supports analog-to-digital conversion)
o Non-intrusive DGA (Dissolved Gas Analysis) breathing membrane gas extraction device
o Scalable TEV sensor arrays

V. Torthaí Úsáide
Practice at a 500kV smart substation demonstrates:

Device condition assessment efficiency improved ≥8x
Early detection rate for insulation defects increased to 97.3%
Maintenance manpower requirement decreased ≥70%
Asset service life extended by 15-20%

VI. Achoimre Ardúcháin an Tionscadail
This solution evolves outdoor VTs/PTs into integrated smart terminals embodying "Sensing-Analysis-Decision-making," resolving three key contradictions of traditional equipment: analog transmission accuracy loss, offline detection timeliness lag, and isolated device data silos. It provides the foundational sensing cornerstone for building a new digital power grid characterized by "Observability, Measurability, and Controllability", significantly enhancing grid resilience and energy utilization efficiency. This solution stands as a core technological pathway supporting the transformation and upgrade of power systems under the "Dual Carbon" goals.

Note: This solution complies with IEEE P2815, DL/T 860 and other standard frameworks, applicable to scenarios ranging from 110kV to 1000kV.

07/19/2025

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