Informatics Publishing Limited

K. Vimala Kumar ¹, S. Mallikarjunaiah ², K. Vasu ³, V. Ganesh ⁴

Affiliations
1 Department of Electrical Engineering, JNT University Anantapur, IN
2 Department of Electrical Engineering at Chadalawada Ramanamma Engineering College, Tirupati, IN
3 Department of Electrical Engineering at MITS, Madanapalle, IN
4 Department of Electrical and Electronics Engineering, JNTUA University, Anantapur, Andhra Pradesh, IN

Abstract

In the power system, any sudden load perturbations cause the deviation of tie-line exchanges and the frequency fluctuations. So Automatic Generation Control [AGC] is very important for supplying electric power with good quality. In recent years, throughout the world, the electric power industry is moving towards a deregulated framework in which consumers will have an opportunity to make a choice among competing providers of electric energy. Deregulation is the collection of restructured rules and economic incentives that governments set up to control and drive the electric power industry. There are crucial differences between the AGC operation in a vertically integrated industry (conventional case) and horizontally integrated industry (new case). In the reconstructed power system after deregulation, operation, simulation and optimization have to be reformulated although basic approach to AGC has been kept the same. The main objectives of the proposed work are:

1. To optimize the integral controller gains and hence study the dynamic performance for a non reheat and reheat hydro-thermal system in the absence and presence of GRC.

2. To examine the importance of APF and to study the impact of DPM variation on electric governor parameters and integral controller gains for a reheat hydro-thermal system with and Without GRC.

Keywords

Load Frequency Control, Automatic Generation Control, Deregulated Power System, Optimal Out Put Feed Back Controller.

Full Text

     

A. Rama Chandra Reddy ¹, K. Roshna ¹, P. Mohanraj ¹, T. M. Kulanthavel ¹, V. S. Saravanan ¹, V. Ganesh ¹

Affiliations
1 Department of Pharmaceutical Analysis, The Erode College of Pharmacy, Veppampalayam, Erode-638112, TN, IN

Abstract

A new simple, sensitive, precise and economical spectrophotometric method of analysis for a bulk drug was developed and validated. The method employed methanol as solvent. The drug was then estimated at 270 nm. The linear regression analysis data for the calibration plots showed good linear relationship with r²=0.999 in the concentration range 0.5-3.0 μg/ml. The mean value of correlation coefficient, slope and intercept were 0.999, 0.0332 and 0.0002 respectively. The method was validated for precision, accuracy and recovery studies. LOD and LOQ for norethisterone was found to be 0.01987 (μg/ml) and 0.06024 (μg/ml) respectively. The method has been successfully applied in the analysis of marketed formulations.

Keywords

Norethisterone, UV Spectrophotometric Analysis.

Full Text

     

M. Thirupathaiah , P. Venkata Prasad , V. Ganesh

Abstract

Due to the increase in sensitive loads to power disturbances, power quality issues became one of the major concerns in many of the distribution systems and industries. The majority of events causing the power quality issues are because of voltage sag and voltage swell. In a distribution system, it is very important that the fault should be removed immediately so that the whole system is protected and the service is not interrupted. In this paper, the performance of Dynamic Voltage Restorer (DVR) and Distribution Static Compensator (DSTATCOM) is analysed by simulated with PWM control scheme using PSCAD. The simulations were carried out with various test cases associated with voltage sag and swell due to three phase short circuit fault, inductive and capacitive load switching conditions. The analysis of DVR and DSTATCOM was done based on the compensation of each device for various power quality problems. Results are presented for DVR and DSTATCOM showing the compensation of voltage sag/swell for various test conditions.

Keywords

Distribution System, DSTATCOM, DVR, Voltage sag, Voltage swell.

Full Text

     

S. Thillaivanan ¹, S. Susikannamma ², P. Parthiban ³, V. Ganesh ³, A. Shanmugasundaram ⁴

Affiliations
1 Government Hospital, Pernambut, Vellore – 635810, Tamil Nadu, IN
2 District Siddha Medical Hospital, Vellore, Tamil Nadu, IN
3 Indian Medicine and Homeopathy Department, Chennai – 600106, Tamil Nadu, IN
4 District Collector’s Office, Vellore – 632009, Tamil Nadu, IN

Abstract

Siddha's system of medicine is the effective one to reduce the symptoms of many viral illnesses. Siddha's system of medicine in asymptomatic, mild to moderate Covid-19 Positive patients, will make them recognize its effectiveness, reduce the symptoms, and move into the traditional approach towards the deadliest pandemic disease Covid-19. The objective of this study is to evaluate the acceptance and benefit of integrative Siddha management among the mild, moderate and asymptomatic COVID patients through a feedback questionnaire in TPEC COVID Care Center, Vellore, Tamil Nadu (TPECThanthai Periyar Engineering College). 74 asymptomatic, mild to moderate Covid-19 Positive patients were observed 7 days from 14.07.2020 to 30.07.2020 in TPEC COVID Care Center, Vellore, Tamil Nadu. During this period, Siddha medicines were administrated along with Western medicine. At the end of the period, validated feedback questionnaires were used to collect information from 74 participants for evaluating the acceptance and benefit of integrative Siddha management.In the 74 patients of TPEC COVID Care Center, Vellore, 100% were taken the given Siddha drug properly. 82.4% had the most common symptoms and 52.7% had less common symptoms. 16.2% of cases developed gastric acidity and 1.3% developed mild dyspnea as an ADR. 91.8% were recommended the Siddha system to others. 93.2% reported excellent disease progress. 90.7% of Siddha doctors quoted for 'Excellent' service on covid patients. This feedback report explores the three important significance. (a) Siddha medicine having significant effectiveness (b) Siddha medicines have safety in covid-19 patients (c) overall services of Siddha doctors are appreciatable by the patients and Siddha system is recommended to others. This analysis report helps to provide the possibility of the Siddha system for further or future clinical trials.

Keywords

COVID Care Center, Integrative Medicine, SARS CoV-2, Novel Corona Virus, Siddha System of Medicine.

Full Text