• Amit kumar kumawat
• Vikaram Singh Rajpurohit
• Ramesh Babu Mutluri

Over the past decades, the strain of electrical power is heavily increasing and therefore the overall security and dependability of the electrical transmission network has become a world concern. No real-life power supply is good and usually will deviate in a minimum of the subsequent ways: voltage, frequency and waveform. Advancing the power quality truth controller area unit used. A versatile electrical strength transmission (FACTS) should be a machine composed of static instrumentation used for the AC transmission of cutting-edge. It’s meant to reinforce controllability and increase power transfer capability of the network. It’s typically an influence electronics-based system. In this paper discuss about classification of facts controller, objective of facts, production and absorption of reactive power, need of reactive power compensation, compensation techniques working principal of STATCOM, working of STATCOM etc are discussed . The mannequin of a CMLI STATCOM received with the aid of device identification method represents its inner dynamics. Based on the identified switch function, parameters of two PI controllers one for load voltage legislation and different for dc capacitor voltage regulation reason the use of Ziegler-Nichols approach have been designed. The performances of controllers designed using identified models have been compared through simulation results under conditions of system loading variations. For these cases, the load voltage manage and dc capacitor voltage rules performances of the CMLI STATCOM has been determined to be pretty satisfactory, thereby establishing the feasibility of the proposed machine identification primarily based voltage controller graph methodology. Compensation with reduced harmonic, when introduce power electronic element having harmonic .with the used of cascade multilevel inverter reduced harmonic without filtration also reduced no of switches.

STATCOM, Three -phase 11-levelCascade multilevel Inverter, PLL block, PI controller etc.)…

"DIRECT IDENTIFICATION CONTROL OF CASCADED MULTILEVEL INVERTER IN STATCOM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.484-493, June-2019, Available :http://www.jetir.org/papers/JETIR1906653.pdf

"DIRECT IDENTIFICATION CONTROL OF CASCADED MULTILEVEL INVERTER IN STATCOM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp484-493, June-2019, Available at : http://www.jetir.org/papers/JETIR1906653.pdf