Sensoreen da Fluxgate a SST: Zama da Inganci

SST tana da yake?

SST na nufin Solid-State Transformer, ko kuma Power Electronic Transformer (PET). Daga fannonin abincin karamin gaba, SST na musamman ya haɗa shi zuwa ƙarfin AC da tsawon 10 kV a tsakiyar farko, sannan ya fitar da hanyoyin DC na 800 V a tsakiyar biyu. Tashin ingancin karamin gaba ta shahara da labari: AC-to-DC da DC-to-DC (kadan-kadan). Idan an yi amfani da shi don abubuwa ko kuma samun servers, ana buƙatar zama biyu don kadan min 800 V zuwa 48 V.

SST suna da muhimmin adadin al'adun karamin gaba masu sauti, kuma suna da muhimmin kyakkyawan addini kamar in kunshi karfiyar reactive power, in yanke mafi magance, da in yanke kontrollofin karamin gaba a nan. Suna da amfani a cikin abubuwan da ke da takawa kamar integracin karamin gaba daga renewable energy, EV charging stations, da computing centers (misali AIDC).

SST: Babban Addinin da Yayin Daidai a Zamanin AIDC Na Takawa

SST na nufin babban addinin daidai na distributin DC na takawa.

• First-generation HVDC ta ci gaba da tsarin karamin gaba na zamanin da suka rasa, bayan an yi amfani da Uninterruptible Power Supply (UPS) na biyu.

• Second-generation solutions, misali Panama power supply, suna da ƙofin karamin gaba na zamanin da suka rasa ta ƙofin karamin gaba na phase-shifting, wanda ya ba da amfani ga integracin.

• Third-generation SST ta ci gaba da ƙofin karamin gaba na zamanin da suka rasa ta ƙofin karamin gaba na takawa, wanda ya ba da amfani ga integracin da take da damar.

Muhimmanci a kan SST shine in bincika tsarin iron-core da winding na karamin gaba masu sauti, kuma in yi amfani da wasu wurare da suka rasa kamar IGBTs da SiC. SST na da muhimmiyar addini a:

• Conversion efficiency (efficiency daga ƙarshe zuwa ƙarshe ya zama da ɗaya da ɗaya ɗaya),

• Construction time (yanayin lokaci ne 30% na solutions na UPS masu sauti),

• Footprint (ya zama da ɗaya da ɗaya ɗaya ɗaya a matsayin solutions na UPS masu sauti),

• Renewable energy integration (direct green power supply ba tabbas ba sai dai conversion modules).

Daga fannonin ilimi, tushen karamin gaba ta yi da ƙasashe da SST ya zama da ɗaya da ɗaya ɗaya, wanda ya ba da amfani ga pain points na distributin karamin gaba a data centers na takawa.

Amfani da High-Precision Fluxgate On-Board Current Sensors a SST

Precise Current Sensing for Power Conversion and Control

Converters na AC/DC da DC/DC na SST suna da amfani da advanced modulation algorithms da closed-loop control. Limittin accuracy na kontrollo shine da sensor precision. Near-"absolute truth" current signal da fluxgate sensors sun bayyana shi suna da amfani ga accurate controller calculations (misali, generating compensation signals, computing active and reactive power). Low temperature drift ya ba da amfani ga accuracy a lokutan da suka rasa, amma a duk lokutan da suke rasa. Idan modules na SST suna da takawa a lokutan da suke rasa, temperatures ta faru a lokutan da suke rasa. Low-drift characteristic ya ba da amfani ga consistent control references daga lokacin da a faru zuwa lokacin da a yi full load, wanda ya ba da amfani ga degradation da kontrollo instability saboda drift na sensor.

Accurate Overcurrent and Short-Circuit Protection

Wurare da suka rasa (misali, SiC MOSFETs) a kan SST suna da amfani da high switching frequencies, amma suna da limited tolerance zuwa overcurrent. Fault currents suna da amfani da interrupt within microseconds. Fast response na fluxgate sensors shine da high-speed camera, wanda ya zama da amfani ga capturing current spikes, providing critical reaction time for drive and protection circuits to prevent cascading device failures. Wannan ya ba da amfani ga safety, kuma ya zama da amfani ga enhancing system dynamic performance. Rapid current feedback ya ba da amfani ga controller to quickly suppress disturbances caused by load transients, maintaining stable bus voltage.

Strong Noise Immunity for Data Accuracy and Reliability

SST shine powerful source of high-frequency electromagnetic interference. Traditional current sensors (misali, Hall-effect sensors) suna da amfani da such noise, resulting in signal spikes that can cause control malfunctions or distorted monitoring data. Fluxgate technology, based on magnetic core saturation principles, inherently suppresses out-of-band noise. It can clearly extract the desired fundamental or specific-band current signals from complex electromagnetic environments, providing reliable data for condition monitoring and health management systems.

Additionally, the on-board design of fluxgate sensors allows direct integration onto control PCBs, reducing system volume and optimizing layout. This is ideal for SST’s pursuit of high power density and miniaturization.