Girmanen Turanci na Aiki da Karkashin Inganci (ECT)
I. Ɗanƙin da Kudin Muhihimmiya
Akwai muhimmanci a cikin tushen kungiyoyin hanyar karamin zafi (CTs) na farko da take da kuma cutarwa, kamar karamin zafi mai yawa, fadada kadan da ke gaba, da kuma tsawon da ke da. Wannan shi ne ya ba da abin da suka rage da idan an yi amfani da shi a cikin grid masu ilimi, domin samun ingantaccen kula da karamin fadada kadan da ke gaba. A matsayin misali, a lokacin da an yi amfani da karamin zafi da ke da, ko kuma a lokacin da an yi amfani da harmonics mai yawa, ya faru wuya da zama da cewa babu ingantacce, wanda ke rage da daraja da tattalin arziki a cikin systemen karamin zafi.
II. Farkon Teknologi Mai Yawa: Tashar Ingantaccen Kula Da Karamin Fadada Kadan Da Ke Gaba
Wannan bayanai ya haɗa ±0.1% klasu na ingantacce (Klasu 0.1) a cikin duka tushen amfani, ta fiye da tushen IEC 61869, saboda an yi amfani da sabbin kayan teknologi na sensa, alamar da kuma digital signal processing na baka.
Muhimman Kayan Teknologi:
- Farkon Sensa Mai Yawa
- Tashar Air-Core Coil Daga Farkon: An yi amfani da kayan aiki na kula da kuma nanocrystalline magnetic cores don kare magance eddy current losses a kafin, ta haɗa phase error < 0.1° a cikin fadada 10Hz ~ 5kHz.
- Micro-Current Self-Powering Technology: An yi amfani da tashar self-powered circuit design (minimum starting current 0.5A) don kare interference daga power supply na gwamna, ta haɗa ingantacce a cikin kula da karamin zafi mai yawa.
- Dynamic Temperature Compensation System
- Multi-Sensor Fusion Calibration: An yi amfani da temperature/vibration/electric field sensors don kare real-time environmental parameter matrix, ta haɗa drift errors via an AI compensation model (LSTM neural network).
- Anti-Interference Digital Processing Chain
|
Module |
Technical Solution |
Accuracy Contribution |
|
ADC Sampling |
24-bit Σ-Δ ADC + Synchronous Clock Distribution |
Reduces quantization noise by 60% |
|
Digital Filtering |
Adaptive FIR Filter Bank |
Harmonic Rejection Ratio > 80dB |
|
Data Transmission |
Triple-Redundant Fiber Channel + CRC32 Checksum |
Bit Error Rate < 10⁻¹² |
III. Comparison of Accuracy Verification (Typical Conditions)
|
Test Condition |
Traditional CT Error |
Proposed ECT Solution Error |
Improvement Factor |
|
Rated Current (50Hz) |
±0.5% |
±0.05% |
10x |
|
20% Overload (30% Harmonics) |
±2.1% |
±0.12% |
17.5x |
|
Extreme Low Temp (-40°C) |
±1.8% |
±0.15% |
12x |
IV. Value of Application
- Grid Security: Fault current measurement accuracy improved to 99.9%, ensuring relay protection correct operation rate > 99.99%.
- Energy Efficiency Management: Wide-band harmonic measurement error < 0.5%, enabling precise power quality analysis.
- Intelligent Expansion: Natively supports IEC 61850-9-2LE protocol, enabling seamless integration into digital substation systems.
