Daga cewa ina iya amfani da inverters zuwa hanyar da ake amfani da open circuit transformers a cikin abubuwan da ake yi a kan variable frequency drive applications?

A cikin tushen bayanin abubuwa da take yi a matsayin variable frequency drive (VFD), ana son inverter don haka yadda ake amfani da open-circuit transformer (wanda ake kira linear transformer) saboda dalilai da dama. Hukuma suna da:

1. Output Frequency da Yake Daidaita

Inverter: Inverter zai iya samun AC power ta yadda yake daidaita, wanda shi ne muhimmin bayanin VFD. Tare da yadda ake daidaita output frequency, zai iya gudanar da speed da torque na motor da ma'adani.

Open-Circuit Transformer: Open-circuit transformer zai iya ba da output frequency da yake ci, kamar yadda ake cutar da grid frequency (50Hz ko 60Hz), kuma bai iya daidaita frequency ba.

2. Tsarin Gaskiya Mafi Yawa

Inverter: Inverters sun yi aiki a kan switching devices da suka da tsarin gaskiya mafi yawa (kamar IGBTs) kuma zai iya samun tsarin gaskiya mafi yawa, kafin ya fi yawa 95%.

Open-Circuit Transformer: Open-circuit transformers suna da iron losses da copper losses, musamman a light load ko ba da load ba, wanda ke nuna tsarin gaskiya da ke da ita daɗe.

3. Inrush Current Da Kadan

Inverter: Inverters suna iya gudanar da inrush current a lokacin da ake fitar da motor, inda ake karɓar da spikes da suka da current mafi yawa. Wannan zai taimakawa wajen yanayi tsari na motor da kuma karfin kawo fuskantar power grid.

Open-Circuit Transformer: Open-circuit transformers bai iya gudanar da inrush current ba, wanda ke nuna startup currents mafi yawa wanda ke sauya drops da voltage a kan grid da kuma karfin kawo fuskantar abubuwan da suka da aiki.

4. Fast Dynamic Response

Inverter: Inverters suna da fast dynamic response capabilities, wanda ke taimakawa su wajen daidaita output da ma'adani don adana changes da load. Wannan shine muhimmanci a cikin tushen da ke buƙata fast response.

Open-Circuit Transformer: Open-circuit transformers suna da slow dynamic responses kuma bai iya daidaita da ma'adani don adana changes da load ba.

5. Protection Functions Masu Kisan Abubuwa

Inverter: Inverters suna da protection functions masu kisan abubuwa, kamar overload protection, short-circuit protection, da overheat protection, wanda ke taimakawa safe operation na system.

Open-Circuit Transformer: Open-circuit transformers suna da protection functions da ke da ƙadan abubuwa kuma suna buƙatar external protection devices.

6. Harmonic Suppression

Inverter: Modern inverters suna da harmonic filters wanda suka taimakawa su wajen suppress harmonics, wanda ke karɓar da pollution na grid.

Open-Circuit Transformer: Open-circuit transformers bai iya suppress harmonics da ma'adani ba, wanda ke zama da degradation na grid quality.

7. Flexibility and Programmability

Inverter: Inverters suna da flexibility and programmability mafi yawa, wanda ke taimakawa su wajen implement complex functions through parameter settings and programming, kamar multi-speed control and PID regulation.

Open-Circuit Transformer: Open-circuit transformers suna da ƙadan functionality kuma bai iya achieve complex control and regulation ba.

8. Size and Weight

Inverter: Inverters suna da size da weight da ke da ƙadan, wanda ke taimakawa su wajen install da maintain da ma'adani.

Open-Circuit Transformer: Open-circuit transformers suna da size da weight da ke da damu, wanda ke taimakawa installation da handling da ƙadan.

9. Cost-Effectiveness

Inverter: Idan initial investment ya kasance mafi yawa, tsarin gaskiya mafi yawa da energy savings na inverters zai iya taimakawa su wajen samun cost savings mafi yawa a lokacin da ƙarin shekaru, wanda ke taimakawa good cost-effectiveness.

Open-Circuit Transformer: Open-circuit transformers suna da lower initial cost, amma tsarin gaskiya da ke da ita daɗe da higher maintenance costs suna nuna operating costs da ke da damu a lokacin da ƙarin shekaru.

Summary

A cikin tushen VFD, inverters suna da advantages masu kisan abubuwa daga open-circuit transformers, kamar adjustable output frequency, high efficiency, low inrush current, fast dynamic response, rich protection functions, harmonic suppression, flexibility and programmability, smaller size and weight, and good cost-effectiveness. Wannan advantages sun taimakawa inverters zuce da choice da ake fi sani a cikin tushen VFD.