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POWER LOSS REDUCTION BY PHEV CHARGING
SYSTEM USING INTELLIGENT INTEGRATED
SYSTEM
K.Hithesh1, R.Hariharan
2, T.Yuvaraj
3
U.G. Scholar, Department of Electrical and Electronics Engineering, Saveetha School of Engineering, Saveetha Institute of Medical And Technical Science, Chennai
1
Assistant Professor, Department of Electrical and Electronics Engineering, Saveetha School of Engineering, Saveetha Institute of Medical And
Technical Science, Chennai 2,3
[email protected], [email protected]
ABSTRACT
This paper discuss about the power loss reduction by phev charging system using intelligent
integrated system. Now-a-days Energy loss reduction process is vital role in the distribution side.
To propose the Energy loss compensation by PHEV charging station using Intelligent Integrated
system (IIS). This method is implemented in IEEE 14 radial bus system. PHEV charging station
can able to inject real power in weakness bus with dynamic load performance. Intelligent
integrated system is to identify the energy loss in IEEE 14 radial bus system, then it process,
intelligent system integrated with the weakness bus, to inject real power to compensate the
energy loss in the grid.
Key words: phevs charging system, intelligent integrated system, IEEE14 bus system, power loss
reduction
International Journal of Pure and Applied MathematicsVolume 119 No. 12 2018, 15919-15929ISSN: 1314-3395 (on-line version)url: http://www.ijpam.euSpecial Issue ijpam.eu
15919
1. Introduction
Power system grids are usually increased due to the building of industries, utilization of power
by consumers and area expansion. Naturally in power girds having drawbacks like power loss,
voltage unbalance, low power factor result and voltage regulation issues[1,2]. Nowadays loss
reduction method plays a vital role in the distribution system. These losses should be minimized
with in short period time. For minimizing these losses we are having different type’s algorithm
and optimization process. Normally we are having distributed generation, capacitor replacement,
network reconfiguration, dstatcom placement methods to minimize these losses [3-6]. Plug-in
hybrid electrical vehicles (phevs) are a new for transportation and future technologies and power
sector and have many profits for economic and environment [7-12]. This paper suggests about
intelligent integrated system with plug-in hybrid electric vehicles charging system. Presently,
due to global warming, spoiling electrical vehicles are much appropriate. Many of the motor
industries are supporting the plug-in hybrid electric vehicle in the public. Plug-in hybrid electric
vehicle charging system is used to provide power to the grid for minimization of losses. This
phev charging system and grid system are observed by intelligent integrated system.
2. Proposed system
Intelligent integrated system observers the grid system state estimation data. Depending upon the
system state, intelligent integrated system reacts. PHEV charging station charges power from the
main grid. Whenever losses occur the intelligent integrated system observes the error in the grid
and the system sends information to the nearest plug-in hybrid electric vehicle charging station to
inject the power for loss minimization.
Block diagram for intelligent integrated system with plug-in hybrid electric vehicle charging
station is shown in figure 1.step 1 initializes the Intelligent Integrated system(IIS), these system
monitor the system grid as Power system parameters, then it process the parameters, it is identify
the energy loss and weak bus. Intelligent integrated system send the actuate signal corresponding
weak bus plug-in hybrid electric vehicle charging station to inject real power to compensate the
energy loss of power system grid.
International Journal of Pure and Applied Mathematics Special Issue
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Figure 1: Block Diagram Of Intelligent Integrated System
2.1 IEEE 14 bus radial distribution system
Figure 2: IEEE 14 bus radial distribution system
In this radial bus system we are going to place plug-in hybrid electric vehicle charging station at
bus 2, bus 3, bus 4 and bus 5. If any bus had effected with power loss these intelligent integrated
system will collects the information and sends the information to the charging station, here in
this charging station the energy has been stored in the battery whenever the loss occur these
charging station will injects the power to reduce the power loss in the distribution system [14].
2.2 Power Balance Equation
Pi(x)- PGi+ PDi=0
Qi(x)- QGi+ QDi=0
Note that Pi(x) and Qi(x) imply the functions that expresses flow from bus i into the gadget in
terms of voltage magnitudes and angles.
While PGi, PDi, QGi, QDi suggest the generations and demand on the bus.
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For a device with a slack bus and the relaxation PQ buses, power go with the flow hassle is to
use the energy stability equations to remedy for the unknown voltage magnitudes and angles in
phrases of the given bus generations and demands, after which use solution to calculate the real
injection on the slack bus.
2.3 Load Factor
Normally we know how load factor will be measured. Load factor is described as the overall
load divided with the aid of the peak load in a precise term. It is a degree of the usage rate, or
performance of electrical power usage; a low load thing suggests that load is not setting a strain
on the electrical device, whereas customers or turbines with that put greater of a pressure on the
electric distribution will have a excessive load thing [13].
Load factor=
2.4 Demand Factor
The ratio of real most call for at the machine to the overall rated load linked with the gadget is
known as demand thing. It is usually less than solidarity. Following system is used to calculate
call for component.
Demand factor=
2.5 Input and Output Variable Bus
Most often, the design of a fuzzy controller is characterized by the fuzzy methodology as
described above. For designing a fuzzy manipulates method from scratch kind of heuristic
methods are to be had. If no informed or operator is to be had, one can't sort out the design
trouble with out some knowledge, natural a mathematical model, of the plant [15-16]. The
controller of the crane has been designed and demonstrated making use of simulation stories with
the aid of the next time-honored method:
Identification of the valuable input and output variables of the controller, i.e. Alternative
of the linguistic variables,
setting of the feasible stages of the input and output values, i.e. scaling of the linguistic
variables,
definition of significant linguistic phrases and their membership capabilities for every
linguistic variable,
developing the rule base, and
International Journal of Pure and Applied Mathematics Special Issue
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Simulation of the closed loop if feasible or testing at the plant website online.
Figure 3: Input and Output Variable Bus
Fuzzy good judgment systems compact with the fuzziness of the enter and output variables with
the aid of essential fuzzy numbers and fuzzy units that may be conveyed in linguistic variables
(e.g. Small, medium and large).
Fuzzy rule-primarily based method to moulding is mainly established on out loud formulated
policies overlapped for the duration of the limitation space. They use mathematical interruption
to address difficult non-linear associations.
A number of current structures want the policies to be put into words by an expert. Though
guidelines may be additionally generated robotically on the idea of numerical records describing
a positive phenomenon [17].
2.6 Fuzzy Rules for PHEV Optimization
The PHEV optimization of loss by using Fuzzy logic rules. This fuzzy logic vitality organisation
scheme of plug-in hybrid electric vehicles (PHEVs) to make a power splitting between the
charging stations to electric grid. These are good at distributing with model doubtfully and
difficult decisions. This logic controls have been proposed by so many scholars for vehicle
control and energy management.
Fuzzy guidelines are linguistic IF-THEN- structures that have the general form "IF A THEN B"
wherein A and B are (gatherings of) propositions containing linguistic variables. A is known as
the idea and B is the effect of the guideline. In impact, the use of linguistic variables and fuzzy
IF-THEN- guidelines activities the tolerance for fuzziness and improbability. In this recognize,
fuzzy common sense mimics the vital potential of the human thoughts to summarize statistics
and cognizance on choice-applicable statistics.
The below table (1) shows the Rules that are used in the Intelligent Integrated System (IIS), the
table below shows the system of various situations tested with the maximum extreme values to
International Journal of Pure and Applied Mathematics Special Issue
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determine the working nature and efficiency of the whole charging system. Hence it was
consider being most efficient transmission with minimal losses.
Table 1: Fuzzy Rules Base Matrix
Figure 4: Fuzzy Rules for PHEV Optimization
International Journal of Pure and Applied Mathematics Special Issue
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Figure 5: Loss Minimization State Simulation Result
3. Simulation result
3.1 Losses state:
When losses occur in the power system, PHEV charging system injects power to the network for
reducing the loss in grid by using intelligent integrated system (IIS).
The amounts of input applied to the PHEVs charging system and required output from the input
with the principle used are clearly seen from this figure 5.
Table2: Input variables Table 3: Output variables
The table 3 shows the extreme quantity of power in the form of per unit value has been stored in
the PHEVs charging station. Whenever the losses occur in the IEEE 14 radial bus system these
PHEVs charging stations are sends energy for the each and every bus in the radial bus system
that can observe in the table 2.
4. Hardware Design
International Journal of Pure and Applied Mathematics Special Issue
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Figure 6: Hardware design of the PHEVs charging station
From the above figure 6 we can observe the LCD display, diodes, microcontroller, nobs and
LEDs. By using these nobs we are going to vary the source and load in the form of percentage
whenever we have changed we can observe the how much power loss has been occurred in the
grid. If the power loss will be less that 20% the PHEV charging station 1 will be activated to
minimal the power loss in the grid. Whenever loss will be more than 20% and less than 40% the
PHEV charging stations 1, 2 are activated to minimal the power loss in the grid. Whenever loss
will be more that 40% by changing nobs the PHEV charging station 1, 2, 3 are activated to
minimal the power loss in the grid. From figure 7 we can observe result of the hardware design
and which charging stations have been activated we can observe.
Figure 7: Resultant of the hardware design
5. Conclusion
No primary problems are probable to be encountered for several decades in supplying the energy
to rate PHEVs charging station, so long as most motors are charged at night. Generation and
transmission of energy during off-peak hours ought to be ok for lots millions of PHEVs charging
stations, although some distribution circuits may additionally want upgrading if they are to serve
International Journal of Pure and Applied Mathematics Special Issue
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clusters of PHEVs charging stations. Encouraging PHEV charging station proprietors to charge
their gird whenever the power loss will occur each fee schedules that reward time-suitable
charging and device which can monitor or maybe manipulate -time of use
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