DOI 10.4010/2015.380
ISSN2321 3361 © 2015 IJESC
Research Article
June 2015 Issue
A Single Phase Single Stage Boost Inverter for 1-Ph Motor Drive
System
M.Pakkiranna1 , B. Ramanjaneyulu Naik2
Sri Sai Institute of Technology & Science
pakkiranna786786@g mail.co m1 , ramanjijob@gmail.co m2
Abstract:
In this paper, a boost converter to wander up the informat ion voltage of the inverter interceded between the Fuel cell and singlestage activation motor is made. The model was completed using MATLAB/Simu link with active (P) and reactive (Q) p owers
using a count in light of a second-demand summed up integrator which g ives a speedy banner embellish ment to single -stage
systems. The organized showing of the parts of proposed arrangement has been taken up. The made reinforce converter boost up
the voltage conveyed by the Fuel cell to a value which is suitable to run a single stage deceitfulness engine. The inverter
supporters DC to AC is controlled by using active (P) and reactive (Q) powers. By utilizing a LC-channel flawless sine wave is
gotten which can be particularly used to drive a singular stage inciting motor. Test examination presented gives the utility of such
a drive structure.
Index Terms: Boost inverter, fuel cell, g rid-connected inverter, Po wer conditioning system (PCS), PQ control, PMSG.
I. INTRODUCTION
greatest passable force, as for this situation, the FC module
may not just neglect to supply the obliged energy to the
heap additionally stop to work or be harmed [10]– [12].
Subsequently, the force converter needs to guarantee that
the obliged force stays inside of the most extreme b reaking
point [10], [12].
This One of RECENTLY, vitality sources, for examp le,
wind power framewo rks, photovoltaic cells, and energy
units have been widely contemplated in light of a dangerous
atmospheric devation and ecological issues. The energy
component is an essential innovation for new versatile
applications and force lattice conveyance frameworks. For
force appropriation, energy unit framework obliges a matrix
interconnection converter to supply energy to the force
network. A lattice interconnection converter utilizing a
confinement transformer is best for force framework
dispersion frameworks regarding surge insurance and
clamor decrease. What's more, size diminishment and high
proficiency are vital prerequisites. One of the issues in the
power device framework is that the lifetime is dimin ished
by the swell current. Consequently, keeping in mind the end
goal to broaden the lifetime, the energy unit swell current
must be lessened in the framework interconnection
converter. Then again, when a solitary stage beat widthadjusted (PWM) inverter is utilized fo r network association
framework, the force swell is double the recurrence of the
force lattice. For Examp le, fro m the current–voltage
qualities of a 72-cell proton trade layer FC (PEM FC) power
module, the voltage fluctuates somewhere around 39 and 69
V. Also, the hydrogen and oxidant can't react the heap
current changes quickly because of the operation of parts,
for examp le, pu mps, heat exchangers, and fuel preparing
unit [6]–[8]. Caisheng et al. [9] displayed the icy begin
which takes over few mo ments.
The target of this paper is to propose and report full test
aftereffects of a lattice joined single-stage FC framework
utilizing a solitary vitality transformation arrange just.
Specifically, the proposed framewo rk, in view of the
support inverter with a reinforcement vitality stockpiling
unit, settles the already specified issues (e.g., the lo w and
variable y ield voltage of the FC, its moderate progress, and
current music on the FC side). The single vitality change
stage incorporates both boosting and reversal capacities and
gives high power transformation productivity, dimin ished
converter size, and ease [17]. The proposed single stage
matrix associated FC framework can work either in network
joined or remain solitary mode. In the lattice associated
mode, the help inverter has the capacity control the dynamic
(P) and receptive (Q) controls through the matrix by the
proposed PQ control calculation utilizing quick flag
mo lding for single-stage framewo rks
II. PROPOS ED FC EN ERGY S YS TEM
An energy unit is an electrochemical cell that changes over
a source fuel into an electrical current. It produces power
inside a cell through responses between a fuel and an
oxidant, activated in the vicinity of an electrolyte. The
reactants stream into the cell, and the response items stream
out of it, while the electrolyte stays inside of it. Energy units
can work consistently the length of the essential reactant and
Along these lines, the moderate flo w of the FC must be
considered when outlining FC framewo rks. This is urgent,
particularly when the force drawn from the FC surpasses the
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oxidant streams are kept up. Power modules are unique in
relation to traditional electrochemical cell batteries in that
they expend reactant from an outer source, which must be
replenished[1] – a thermodynamically open framework. By
difference, batteries store electrical vitality artificially and
subsequently speak to a thermodynamically shut framework.
Nu merous mixes of powers and oxidants are conceivable. A
hydrogen power device utilizes hydrogen as its fuel and
oxygen (as a rule fro m air) as its oxidant. Different fills
incorporate hydrocarbons and alcohols. Different oxidants
incorporate chlorine and chlorine dio xide Fuel cells come in
numerous assortments; notwithstanding, they all work in the
same general way. They are co mprised of three frag ments
which are sandwiched together: the anode, the electrolyte,
and the cathode. Two synthetic responses happen at the
interfaces of the three distinct sections. The net consequence
of the two responses is that fuel is devoured, water or
carbon dioxide is made, and an electrical flo w is made,
which can be utilized to power electrical gadgets, ordinarily
alluded to as the heap. At the anode an impetus oxidizes the
fuel, generally hydrogen, transforming the fuel into an
emphatically charged particle and a contrarily charged
electron. The electrolyte is a substance particularly outlined
so particles can go through it, yet the electrons can't. The
liberated electrons go through a wire making the electrical
current. The particles head out through the electrolyte to the
cathode. When coming to the cathode, the particles are
brought together with the electrons and the two respond
with a third substance, normally o xygen, to make water or
carbon dioxide.
A. Fuel cells
Fuel cells are likewise very much utilized for d ispersed era
applications, and can basically be depicted as batteries
which never get to be released the length of hydrogen and
oxygen are constantly given. The hydrogen can be supplied
straightforwardly, or by imp lication created by reformer
fro m energizes, for examp le, co mmon gas, alcohols, or gas.
Every unit extends in size fro m 1-250 kW or b igger MW
size. Regard less of the possibility that they offer high
productivity and low outflows, today's expenses are high.
Phosphoric corrosive power module is monetarily accessible
in the scope of the 200 kW, while strong oxide and liquid
carbonate energy units are in a precommercial phase of
improvement. The likelihood of utilizing fuel as a fuel for
cells has brought about a noteworthy improvement exert ion
by the car organizations. The late research work about the
energy components is centered towards the polymer
electrolyte layer (PEM) power modules. Energy units in
sizes more noteworthy than 200 kW, hold guarantee past
2005, yet private size power modules are unrealistic to have
any huge business sector affect at any point in the near
future. Fig.1 demonstrates a square outline of power module
framework which comprises of a reformer, energy
component stack and a PCU.
Fig 2. Basic Layout of FC System with 1-ph motor drive
system
In addition, the adaptability of power modules has
considered applications in every field. Energy unit
frameworks can be effortlessly set at any site in a force
framework for lattice fort ification, along these lines
conceding or killing the requirement for framework
redesigns
and
enhancing
framewo rk uprightness,
unwavering quality, and proficiency.
In this way, fitting controllers should be intended for a
power module framework to make its execution attributes as
wanted. Advancement of a standalone, lessened request,
element model of power device force plant jo ined with a
dispersion matrix through dc/air conditioning converter. The
proposed model incorporates the electrochemical and warm
parts of concoction responses inside the power device stack
however the progress model of DC/ DC and DC/AC
Converters are not considered. A novel various leveled
control building design for a mixture conveyed era
framework that comprises of element models of a battery
Fig 1. Proposed Block Diagram.
In this piece graph the models reinforcement unit and the
FC power module are associated in the unregulated dc
transport and the support inverter yield is joined with the
neighborhood load and the network. The representation of
the force are specified as takes after,
P1: FC yield power
P2: reinforcement unit information/yield power,
P3: inverter yield power
P4: power between the inverter and the matrix and
P5: energy to the air conditioner burdens.
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bank, a strong oxide power module and force electronic
converter has been displayed. The power device force plant
is interfaced with the utility lattice and a three stage beat
width balance (PWM) inverter. Accepted SOFC element
model utilized as a part of this tas .
mode control, for examp le, nonlinear burdens, unexpected
burden varieties, and transient short out circumstances.
Utilizing this control system, the inverter keeps up a steady
working condition by method for constraining the inductor
current. In light of this capacity to hold the framework under
control even in these circu mstances, the inverter
accomplishes an exceptionally dependable operation [16].
The reference voltage of the help inverter is given fro m the
PQ control calculation having the capacity to control the
dynamic and responsive force. The voltages crosswise over
C1 and C2 are controlled to track the voltage references
utilizing relative thunderous (PR) controllers. Contrasted
and the traditional relative vital (PI) controller, the PR
controller can min imize the disadvantages of the PI one, for
example, absence of follo wing a sinusoidal reference w ith
zero enduring state mistake and poor aggravation.
III. B OOST INVERTER
Help dc–ac inverter actually creates in a solitary stage an air
conditioner voltage whose top worth can be lower or more
noteworthy than the dc info voltage. The principle
disadvantage of this structure manages its control. Help
inverter comp rises of Boost dc–dc converters that must be
controlled in a variable -operation point condition. The
sliding mode control has been propos ed as an alternative.
On the other hand, it doesn't specifically control the
inductance arrived at the midpoint of current. This paper
proposes a control system for the Boost inverter in wh ich
every Boost is controlled by method for a twofold circle
regulation plan that comprises of another inductor current
control internal circle and a likewise new yield voltage
control external circle. These circles incorporate
remunerations so as to adapt to the Boost variable operation
point condition and to accomplish a high power to both
informat ion voltage and yield current aggravations. As
indicated by recreation and model trial results, the proposed
control technique accomplishes a high dependable
execution, even in troublesome transient circumstances, for
example, nonlinear burdens, unexpected burden changes,
shortcircuits, and so forth., which sliding mode control can't
adapt to.
C. Control Block Diagram
Fig 4.control b lock for boost inverter
The control plan proposed in this proposition is the
decoupled PQ control. This controller controls the stage
point and sufficiency of the voltage over the transformer.
The distinction in the stage point between the voltage over
the transformer and the utility side voltage decides the
bearing of the genuine and receptive force stream. Since the
stage edge on the utility side is zero, stage point of the
voltage over the transformer decides the bearing of the force
stream. This control is essentially a genuine force control
subsequent to the receptive force is thought to be zero.
A. General Circuit
Fig3. Circuit diagram for boost inverter
B. Control Scheme
A twofold circle control plan is decided for the support
inverter control being the most suitable technique to control
the individual help converters covering the extensive variety
of working focuses. This control strategy is in light of the
found the middle value of nonstop time model of the
support topology and has a few points of interest with
exceptional conditions that may not be given by the sliding
Fig 8. Block diagram of the overall control system of the
inverter
The figure comprises of different sub pieces to be managed,
aside from the P-Q controller. The line-line voltage over the
transformer and the utility side are measured fro m the
framework to ascertain the genuine and responsive force
stream. The P-Q controller contrasts the real values and the
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reference genuine and receptive forces to get the stage point
of the transformer voltage and the balance list, separately.
These control variables are utilized to focus the obligation
cycle control signals which when contrasted and the
triangular wave, deliver the exchanging signs for the
inverter. This subsection comprises of the genuine and
responsive force estimation and the decoupled P and Q
controller. The line-line voltage on the utility side (VLL
rmsu) and the transformer (VLL rmst) are measured fro m
the framework.
The genuine and responsive force streams are given by
Equations
C. Control Block For PQ Control
Fig 10. PQ control block
IV.S IMULATION
Simu lation
is
performed
using
MATLAB/SIMULINK software. Simu lin k liabrary files
include inbuilt models of many electrical and electronics
components and devices such as diodes, MOSFETS,
capacitors, inductors, motors, power supplies and so on. The
circuit co mponents are connected as per design without
error, parameters of all co mponents are configured as per
requirement and simulation is performed.
Where φi is the stage point of the voltage on the inverter
side and Lt is the spillage inductance of the transformer.
For estimat ion purposes, the transformer is thought to be
perfect; subsequently the edge slack because of Y- Y
association is disregarded. The P-Q controller essentially
comprises of PI controllers to control the stage edge and the
adjustment list. The principle necessity for the inverter
exchanging signs is the stage point and abundance of the
inverter voltage. Figure 3 demonstrates the genuine and
receptive force control framework. The genuine force
stream is given by Equation (8). the voltages and the
reactance terms are pretty much consistent. The genuine
force is straightforwardly relative to the stage edge if the
point is little. Consequently the genuine force stream can be
utilized to control the stage point of the inverter.
Responsive force stream controls the sufficiency of the
transformer voltage. The mistake between the reference and
the deliberate genuine force is bolstered into a PI controller
to control the stage edge of the inverter as demonstrated in
the figure beneath. The inverter voltage, thusly, relies on
upon the responsive force. The blunder between the
reference and the deliberate receptive force is sustained into
the PI controller. The control of the transformer voltage is
corresponding to the control of the inverter voltage.ge is
utilized to focus the plentifulness of the regulation signs.
Fig . Main b lock simu lation Diagram for 1-ph motor drive
FC system
Fig 9. Control Diagram for Real and Reactive Po wer
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Circuit parameters:
d) Motor Speed and torque
FC input=50V DC
Motor parameters:
1-Ph Asynchronous motor
Capacitor start
No minal power= 100VA
No minal Vo ltage=100V rms
No minal frequency= 50Hz
Winding parameters:
Stator resistance Rs= 2.02Oh m
Inductance, Ls=7.4mH
Rotor resistance=4.12 Oh m
Inductance=5.6mH
Mutual inductance=0.177H
No. of poles=2
Starting capacitor= 254.7uF
a)
V. COCNLUS ION
A single-phase single power stage motor drive FC
system based on the boost-inverter topology with a backup
battery based energy storage unit is proposed in this paper.
The simulation results verify the operation characteristics of
the proposed FC system with motors speed and torque
variations. In summary, the proposed FC system has a
number of appealing co mponents, for examp le, single power
change stage with high efficiency, simplified topology, low
cost etc.
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AUTHOR DETAILS
AUTHOR 1:
M PAkkiranna currently pursuing M.tech in Power
Electronics fro m Sri sai Institute of Technology & Science
affiliated JNTUA. He had done his B.Tech degree from
Narayana Engineering College, Gudur, Nellore(District),
affiliated to JNTUA in 2013. And his field interested in
Power Electronics.
AUTHOR 2:
B.Raman janeyulu Naik has comp lited his B.Tech Electrical
and Electronics Engineering in 2007 fro m Annamacharya
Institute of Technology & science affiliated to JNTUA.
M.Tech in Power System operation and control in SV
University, Tirupati 2011, and working as a Asst. Prof of
EEE Depart ment Sri sai Institute of Technology & Science
affiliated JNTUA, Rayachoty, kadapa(Dist). His areas of
interest includes Power System.
AUTHOR 3:
V.PRATAPA RAO
has
completed
his
B.Tech
ELECTRICA L & ELECTRONICS ENGINEERING in
2003 fro m R.G.M COLLEGE OF ENGINEERING &
TECHNOLOGY affiliated to JNTUH Un iversity M.TECH
in POW ER SYSTEM fro m A.I.T.S Rajampet affiliated to
JNTUA University and presently he is interested to ---topics includes POWER SYSTEM especially in
ELECTRICA L DISTRIBUTION SYSTEM working as
ASSISTA NT PROFESSOR and HOD o f EEE Depart ment
at SRI SAI INSTITUTE OF TECHNOLOGY A ND
SCIENCE affiliated to JNTUA University, Rayachoty,
Kadapa(DIST) ANDHRA PRA DESH,INDIA.
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