Distributed Generation Opportunity under Availability Based Tariff and Reliability Considerations

Availability Based Tariff (ABT) has been implemented in all the regional grids of India for improving grid discipline by frequency dependent pricing. Currently it is limited to short-term energy transactions between the beneficiary States and Central generating stations without the need for negotiations on price or quantum in real time. In the present scenario, Independent Power Producers (IPP), Captive Power Plants (CPP), small Distributed Generation (DG) like mini-turbine, fuel cell, etc., are not considered under ABT. DG units are normally modular in size and they can be placed close to consumers so as to reduce the T&D costs and losses. Hence, they need to be encouraged so as to meet the ever-increasing electricity demands of Indian power sector within the financial constraints. In this paper, impact of IPPs, CPPs and DGs on intra-State ABT is studied. This paper also proposes to study the impact of grid connected DG on network availability and reliability. The improvement in system reliability is studied after evaluating reliability indices like SAIFI, SAIDI, etc., with the inclusion of DG.

Download Full-text

Employee engagement in Indian power companies: study of executives identifies four key drivers

Human Resource Management International Digest ◽

10.1108/hrmid-12-2021-0246 ◽

2022 ◽

Vol ahead-of-print (ahead-of-print) ◽

Keyword(s):

Organizational Culture ◽

Employee Engagement ◽

Power Plants ◽

Power Sector ◽

Content Type ◽

Specific Factors ◽

Indian Power Sector ◽

The Impact ◽

The Relationship ◽

Supervisor Trust

Purpose The purpose was to study how to create employee engagement in the Indian power sector. It also explored the antecedents of employee engagement. Design/methodology/approach Responses were gathered from executives in three companies working at power plants, distribution and transmission offices spread across five districts in the states of Odisha and West Bengal. Findings The research revealed how co-worker trust, supervisor trust and organizational trust all mediate the relationship between organizational culture and employee engagement. The study also compares engagement levels of employees at the three companies. Originality/value The authors say it is crucial to enhance employee engagement by identifying sector-specific factors. The results also help policymakers to appreciate the impact of organizational culture on employee engagement, and formulate appropriate policies.

Download Full-text

Evaluation of Distributed Generation Impact on Reliability of a Distribution System using DIg SILENT Power Factory

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.j7586.0891020 ◽

2020 ◽

Vol 9 (10) ◽

pp. 381-389

Keyword(s):

Distributed Generation ◽

System Reliability ◽

Distribution System ◽

Distribution Systems ◽

Distribution Network ◽

Simulation Method ◽

Green Energy ◽

Reliability Indices ◽

Distribution System Reliability ◽

The Impact

As an effective supplement to the centralized fossil fuel based traditional generation, Distributed Generation (DG) has become an effective alternative choice and has been rapidly increasing since past few years due to growing demand for electricity and the new policies of governing bodies for usage of green energy. In overall power system, distribution systems are more vulnerable to faults and reliability aspects of such systems becomes an important issue. With higher penetration of DG into the distribution network, it will be necessary to study the impact of such generation on the various aspects of distribution system. Thus, increase in rate of penetration DGs into the distribution system on one side and increased faults in distribution network on another side, will make the study of impact of DG integration on distribution system reliability an interesting topic of research. The present work focuses on evaluation of impacts of integration of such DGs on reliability of local distribution network, typically in an urban scenario By using the simulation method using DIgSILENT PowerFactory software, the impacts of integration of DG in terms of enhancement in distribution system reliability indices and reduction in system losses for different scenarios are studied and presented in this paper. Based on the simulation results obtained and after analysis of the distribution system, overall results are summarized by focusing on the installation of suitable capacity of DG and the location of DG which are important factors affecting the system losses and system reliability indices.

Download Full-text

Integrating the PV-Diesel Hybrid System for Reliability Improvement in Distribution System

JAREE (Journal on Advanced Research in Electrical Engineering) ◽

10.12962/j25796216.v3.i2.89 ◽

2019 ◽

Vol 3 (2) ◽

Author(s):

Cho Cho Myint ◽

Ohn Zin Lin ◽

Soe Soe Ei Aung

Keyword(s):

Power Generation ◽

Distributed Generation ◽

Hybrid System ◽

System Reliability ◽

Distribution System ◽

Voltage Drop ◽

Load Condition ◽

Voltage Profile ◽

Hydro Power ◽

Reliability Indices

In Myanmar, as the main power generation is hydro power generation. the utility cannot supply sufficient power to customers during the dry season. Besides interruptions occur frequently due to aging system and lack of prospered protection. Therefore, reliability is an urgent issue in Myanmar. As a result of unbalance between generation and load, the distribution system is getting poor voltage profile, instability and high power losses in high load condition. According to network characteristics, the failure of a component always leads to consequence interruption in a radial distribution system. Therefore, it is a must consideration to mitigate these challenges to enhance the system reliability. There are many techniques to solve the reliability problems such as reclosers, switching devices (manual and automated switches), system reconfiguration, feeder re-conducting and integration of distributed generation (DG). In this paper, system reliability assessment is evaluated in detail with the integration of the distributed generation such as PV-Diesel Hybrid System. The location of DG is chosen according to the expected energy not supply (EENS) and the voltage drop in proposed system. Next, the optimal sizing of DG is chosen depends on the penetration level of generator. Reliability indices can be evaluated depending on the failure rate(λ), repair time(r) and annual outage time(U) in Electrical Transient and Analysis Program (ETAP) software. The case study of this thesis is carried out in 33/11 kV network which is connected Kyatminton Substation, Kyaukse, Middle Myanmar.

Download Full-text

Effect of Grid Instability on Power Generation System's Reliability

Journal of Engineering Research and Reports ◽

10.9734/jerr/2020/v11i117053 ◽

2020 ◽

pp. 27-37

Author(s):

Joseph Benedict Bassey ◽

Isaac F. Odesola

Keyword(s):

Power Generation ◽

Power Plant ◽

Failure Rate ◽

System Reliability ◽

Power Distribution ◽

Power Plants ◽

Time To Failure ◽

Generation System ◽

Reliability Indices ◽

Mean Time

Aims: Reliability assessment of power generation system may be performed with the concept of system adequacy, security or both. Grid being a major component in the power distribution chain is seen to have some influence on the state of the generation system reliability because of the perturbation that may arise from it. In this study, the generation system reliability is evaluated using both the system adequacy and security concept. Study Design: To capture the system security problems attributed to grid disturbance, the generation system is structured into two component systems (1 - generation component and 2 - transmission component) with a series arrangement. Methodology: The reliability indices such as, mean time to failure, mean time to repair, failure rate and repair rate are assessed on component bases and with respect to the entire generation system. Results: The effect of failure rate of the transmission component on the entire generation system failure rate was evaluated as 66.25%, 55.55%, 33.33%, 55.00% and 35.72% in year 2013, 2014, 2017 2018 and 2019 respectively for FIPL Power Plant and 52.94%, 82.35%, 61.38% and 100% effect was evaluated in the year 2016, 2017, 2018 and 2019 respectively for GT5 of Omoku Power Plant. Conclusion: These results showed that there is a significant influence of grid disturbances on the reliability state of the two gas turbine power plants in Nigeria. Measures on possible reliability state improvement of the power generation systems were suggested to include training and retraining of technical personnel on the management of major equipment in the generation and transmission stations.

Download Full-text

Short term energy forecasting techniques for virtual power plants

2016 IEEE 6th International Conference on Power Systems (ICPS) ◽

10.1109/icpes.2016.7584063 ◽

2016 ◽

Author(s):

Sharon Ravichandran ◽

Vijayalakshmi A ◽

K. Shanti Swarup ◽

Haile-Selassie Rajamani ◽

Prashant Pillai

Keyword(s):

Power Plants ◽

Virtual Power ◽

Short Term ◽

Energy Forecasting ◽

Virtual Power Plants ◽

Term Energy ◽

Forecasting Techniques

Download Full-text

A Heuristic Analysis Method for the Impact of DGs to Power System Reliability

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.986-987.187 ◽

2014 ◽

Vol 986-987 ◽

pp. 187-191

Author(s):

Bo Zeng ◽

Kai Wang ◽

Xiang Yu Kong ◽

Yi Zeng ◽

Qun Yang

Keyword(s):

Distributed Generation ◽

System Reliability ◽

Power Distribution ◽

Distribution System ◽

Simulation Analysis ◽

Analysis Method ◽

Distributed Generations ◽

Power Distribution System ◽

High Penetration ◽

The Impact

With high penetration of distributed generation connected to the grid, distribution system will have some huge impacts, and system reliability calculation models and assessment methods are changing. Based on Monte-Carlo method, a heuristic reliability analysis method for distribution system with distributed generations was proposed in the paper, which focuses on the mode of distributed generation in parallel to system power supply. Functional role of distributed generation in the power distribution system failure and distributed power adapter with load strategies were analyzed in this method. Cases simulation analysis was used to verify its effectiveness.

Download Full-text

Distributed Generation Impact on Distribution System Reliability

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.c2274.0210321 ◽

2021 ◽

Vol 10 (3) ◽

pp. 193-200

Author(s):

K. RAJU ◽

P. Mercy hepciba rani ◽

J. Prashanthi

Keyword(s):

Power System ◽

Distributed Generation ◽

System Reliability ◽

Distribution System ◽

Reliability Indices ◽

Electric Distribution System ◽

Distribution System Planning ◽

Distribution System Reliability ◽

Extreme Scale ◽

System Average

Reliability is the most important factor of distribution system and this system should be operated economically with low customer loads interruption. This is because that the distribution system gives supply to customers from transmission system. There are some power quality issues due to the failures of components in distribution system. Researchers are going on to assess the reliability of the power system. In the power system, reliability evaluation is an important aspect in complete electric distribution system planning and operation. Due to the extreme scale of problem, it is not possible to conduct reliability on complete power system, it is performed independently. Hence, In this paper, the reliability of distribution system is evaluated by using an analytical method is described and is applied to the IEEE RBTS BUS-6. Development of reliability model of distribution system using Electrical Transient Analyzer Program (ETAP) software is developed. And the Distributed Generation is introduced for the improvement of reliability. Reliability indices are such as System Average Interruption Frequency Indices (SAIFI), System Average Interruption Duration Indices (SAIDI), Customer Average Interruption Frequency Indices (CAIFI), Customer Average Interruption Duration Indices (CAIDI), Energy Not Supplied (ENS), Average Service Availability Indices (ASAI), etc. The performance of reliability of the system is shown by these indices

Download Full-text

The Efficiency of Distributed and Centralized Power System Integration

E3S Web of Conferences ◽

10.1051/e3sconf/201911405007 ◽

2019 ◽

Vol 114 ◽

pp. 05007 ◽

Cited By ~ 3

Author(s):

Felix Byk ◽

Yana Frolova ◽

Ludmila Myshkina

Keyword(s):

Power Systems ◽

Power System ◽

Distributed Generation ◽

Power Supply ◽

Power Plants ◽

Power Supply System ◽

Supply System ◽

Technical Solution ◽

Local Power ◽

The Impact

The existing centralized power supply system has the alternative due to distributed generation. By certain conditions distributed cogeneration allows to increase the reliability and quality of power supply and to reduce the cost of electricity for consumers. Therefore, a lot of energy-intensive consumers switched to their own power supply systems, as it turned out to be a competitive technical solution. The total gasification of the country’s regions and the presence of domestic manufacturers of gas turbine and gas piston power plants accelerated this process. Nowadays local power systems are emerging with cogeneration plants are the main source of heat and electricity there. The feasibility justification of the kind and type of generation is determined by many factors, including circuit-mode parameters in the local power system and adjacent network. Local power systems based on the principles of self-balance are proposed to name as energy cells. The integration of energy cells with regional power system increases the technical and economic effectiveness of power supply system for consumers. The proposed power systems transition leads to certain systemic effects. Received effects are depending on functions of distributed generation. This paper explores the impact of scheme and mode factor on the technical effects.

Download Full-text