Consideration on reactive power service using power flow tracing of electricity

Author(s):  
K. Imashima
2003 ◽  
Vol 64 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Y. Dai ◽  
X.D. Liu ◽  
Y.X. Ni ◽  
F.S. Wen ◽  
Z.X. Han ◽  
...  

2006 ◽  
Vol 156 (1) ◽  
pp. 33-43 ◽  
Author(s):  
Michio Suwa ◽  
Shinichi Iwamoto

2007 ◽  
Vol 35 (9) ◽  
pp. 1079-1092 ◽  
Author(s):  
H. Wu ◽  
C. W. Yu ◽  
N. Xu ◽  
X. J. Lin ◽  
W. H. Chen

2018 ◽  
Vol 7 (1.8) ◽  
pp. 20
Author(s):  
Danalakshmi D ◽  
Kannan S ◽  
Gnanadass R

The shift from regulated to restructured power system results in an increased competition among the electricity market. In restructured power system, the separation of transmission services from generation and distribution makes it necessary to find the contribution of power from individual generator to individual load. The power flow tracing method is used to obtain the generator power output to a particular load. The reactive power has to be maintained in order to sustain the voltage level throughout the system for reliable and secure operation. Hence the reactive power cost allocation has become imperative in the power system. In this paper, the tracing method is integrated with the optimal reactive power dispatch problem to trace the generator minimal reactive power for sustaining the real power transaction and enhancing the system security by meeting the demand. The Differential Evolution is used for optimal reactive power dispatch. The cost allocation to the generators for the reactive power service based on the opportunity cost method is obtained for 62 Bus Indian Utility Systems.


2015 ◽  
Vol 11 (1) ◽  
pp. 60-69
Author(s):  
Susithra M ◽  
Gnanadass R

Competitive trend towards restructuring and unbundling of transmission services has resulted in the need renteto discover the impact of a particular generator to load. This paper initially presents the analysis of three diffreactive power valuation methods namely, Modified Ybus, Virtual flow approach and Modified Power flow tracing to compute the reactive power output from a particular generator to particular load. Among these methods, the modified power flow electricity tracing method is identified as the best because of its various features. Secondly, based on this Method, the opportunity cost for practical system is determined. Hence, this method can be useful in providing additional insight into power system operation and can be used to modify existing tariffs of charging for reactive power transmission loss and reactive power transmission services. Simulation and comparison results are shown by taking IEEE 30 bus system as test system.


Author(s):  
Gaurav Gupta ◽  
Manisha Dubey ◽  
Anoop Ayra

<span>In the deregulated market environment as generation, transmission and distribution are separate entities; reactive power flow in transmission lines is a question of great importance. Due to inductive load characteristic, reactive power is inherently flowing in transmission line. Hence under restructured market this reactive power allocation is necessary. In this work authors presents a power flow tracing based allocation method for reactive power to loads. MVAr-mile method is used for allocation of reactive power cost. A sample 6 bus and IEEE 14 bus system is used for showing the feasibility of developed method.</span>


2014 ◽  
Vol 626 ◽  
pp. 202-207
Author(s):  
V. Mahesh ◽  
N. Kamaraj

Power flow tracing based reactive power pricing scheme is presented in this paper. A method is suggested to solve the problem of bidirectional flow of reactive power. The reactive power allocated by each generator to all the load buses is found and the corresponding cost to be paid by the load to generator is calculated. Super position principle based method is used to calculate the allocation of reactive power by the generators to the loads. Costs allocated for generators are found using quadratic cost function. The method is implemented on IEEE standard bus system and the results are found satisfactory.


2004 ◽  
Vol 124 (4) ◽  
pp. 537-545
Author(s):  
Michio Suwa ◽  
Shinichi Iwamoto

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