Influence of Critical Outage on Reactive Power Loss Allocation in a Deregulated Electricity Market

2018 ◽  
Author(s):  
Akintunde Samson Alayande ◽  
Nnamdi Nwulu
Keyword(s):  
Electricity Market ◽  
Power Loss ◽  
Reactive Power ◽  
Loss Allocation ◽  
Deregulated Electricity Market

scholarly journals A New Technique for Transmission Loss Allocation in a Deregulated Electricity Market

2019 ◽  
Vol 8 (3) ◽  
pp. 6724-6727
Keyword(s):  
Electricity Market ◽  
Transmission Loss ◽  
The Other ◽  
New Technique ◽  
Fair Allocation ◽  
Loss Allocation ◽  
Allocation Method ◽  
Deregulated Electricity Market ◽  
Transmission Loss Allocation ◽  
A New Technique

In a present day a necessity for fair allocation of transmission loss in a deregulated electricity market. This paper presents modifiedZbus loss allocation method to calculate the allocation of transmission loss loss . The procedure depends on straightforward circuit laws and doesn't include any suppositions. results obtained for IEEE 14 Bus system are analysed with the other present methods

Effect of Real Power Loss Allocation on the Transfer Bus with Zero Injection Power

2016 ◽  
Vol 2 (09) ◽  
Author(s):  
Ganiyu Adedayo Ajenikoko ◽  
Olayinka Titilola T
Keyword(s):  
Electricity Market ◽  
Power Loss ◽  
Power Flow ◽  
Power Transmission ◽  
Electrical Power ◽  
The Other ◽  
Allocation Model ◽  
Real Power ◽  
Loss Allocation ◽  
Injection Power

Loss allocation in electrical power transmission system has a significant role to play in the restructuring of electricity market since generator and demands are connected to the same network. There is the need for an efficient loss allocation scheme that could fit all market structures in different locations. This paper presents the effect of real power loss allocation on the transfer bus with zero injection power. Three approaches- the postage stamp method (PS), proportional sharing principle (PSP) or flow tracing method and the Bus-wise loss allocation (BWLA) method were compared using appropriate mathematical notations for the development of a Hybridized real power loss allocation model. The average values of the losses with the three methods –PS, PSP and BWLA were computed to obtain the hybridized real power loss allocation model. The effect of real power loss allocation on the transfer bus with zero injection power is then established. The results of the work show that in PSB method, a loss of 3.0751MW was allocated to bus 1 as it contributes 142.608MW to other loads with the allocation of 1.8523MW to bus 2 with the contribution of 55MW to the other loads. In BWLA method a loss of 3.1412MW was allocated to bus 1 with its contribution of power flow to the other loads as 146.908MW while allocating a loss of 1.2381MW to bus 2 with its contribution of power flow to other loads as 58MW. In the PS method, the participants with more contributions get more benefits compared to participants with lesser contributions. Though, network is taken into consideration in PSB, customers have no reasonable benefits as compared to the BWLA method compared to the other two approaches. The total real power loss of 25.18MW for the 30 bus system was obtained by using PS. PSP and BWLA method. All the three methods, PS, PSB and BWLA allot zero loss to the transfer bus which has zero injection power. In PSB method, negative losses ( counter-flows) occur when number of buses increases and in BWLA  method, negative losses (counter flows) never occur even though there is an increase in the number of buses.

Evaluation of Reactive Power Support and Loss Allocation in a Pool Based Competitive Electricity Market

2017 ◽  
Vol 18 (2) ◽  
Author(s):  
Tukaram Moger ◽  
Thukaram Dhadbanjan
Keyword(s):  
Electricity Market ◽  
Reactive Power ◽  
Western Region ◽  
Equivalent System ◽  
Power Demand ◽  
Relative Location ◽  
System Operation ◽  
New Approach ◽  
Loss Allocation

Abstract This paper presents a new approach using modified Y-bus matrix to compute the reactive power support and loss allocation in a pool based competitive electricity market. The inherent characteristic of the reactive power in system operation is properly addressed in the paper. A detailed case study on a 11-bus equivalent system is carried out to illustrate the effectiveness of the proposed approach. It is also tested on a large 259-bus equivalent system of Indian western region power grid. A comparison is also made with other existing approaches in the literature to highlight the features of the proposed approach. Simulation results show that the reactive power support and loss allocation from the proposed approach is carried out in a systematic manner which takes into consideration the power demand and the relative location of the nodes in the network.

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