Optimal Active And Reactive Power Control Essay - 1529 Words

Optimal Active and Reactive Power Control of Wind Turbine Driven DFIG using TLBO Algorithm and Artificial Neural Networks Mahmoud M. ElKholy H. M. B. Metwally Garib M. regal M. Ali Sadek Electrical Power and Machines Engineering Department, Faculty of Engineering Zagazig University, Zagazig, EGYPT Email: melkoly71@yahoo.com Email: elemohsadek@yahoo.com Abstract—This paper investigates the optimal active and reactive power control capabilities for typical wind turbine (WT) driven doubly fed induction generator (DFIG). The main objective is to determine the optimal rotor voltage to extract certain active and reactive power from the DFIG over wide ranges of wind speed. Teaching Learning Based Optimization (TLBO) algorithm is a new heuristic optimization technique, used to obtain the optimum rotor voltages to achieve reference active and reactive powers overall operating points. Artificial Neural Network (ANN) controller is used as an adaptive controller to predict the value of rotor voltage for all operating points. The ideal power curve of a 2 MW wind turbine has been estimated to design the active power controller. The stator reactiv e power control capability with the range of  ±1.6 MVAR is developed. With the proposed control strategy, the DFIG-based wind farm provides Maximum Power Point Tracking (MPPT), fully active and reactive powers control. For all operated wind speeds, the adaptive proposed controller develops useful networkShow MoreRelatedAnalysis Of Wind Power1456 Words   |  6 Pages Extending wind power and uncertain nature of loads in power systems causes difficulties in system provision due to the probabilistic trait of them. In order to plan accurately, it is important to evaluate uncertainties in optimization planning of the power system. As regards to this point, this paper presents a probabilistic multi-objective optimal power flow (MO-OPF) considering the uncertainties in wind speed and the load. This paper uses a point estimate method (PEM) which uses points for estimationRead MoreReactive Power Compensation Strategy For1445 Words   |  6 PagesREACTIVE POWER COMPENSATION STRATEGY FO R CASCADED PHOTO VOLTAIC SYSTEM Abstract – Large scale cascaded photovoltaic systems is contributing renewable energy world wide due to its unique features like reliability, power quality ,amount of energy harvested and so on. However cascaded PV system is facing one of the tough challenges like reactive power control due to varied power distribution over different PV modules. This paper addresses the issue of effects due to reactive power on system reliabilityRead MoreHybrid Electric Vehicles ( Phevs )3014 Words   |  13 Pages such as reduction in power quality and efficiency, increase in power losses and voltage variations, as well as an adverse impact on the customers’ energy price. This paper proposed approach evaluates the effect of integrating a large number of PHEV on power system operation as well as appropriate operation of PHEVs can improve the voltage profile in the network by eliminating the voltage drops in highly-loaded buses with discharging reactive power. Furthermore, the optimal placements for char gingRead MorePhotovoltaic Based Stabilising The Load Distribution Feeders Using Lpc1159 Words   |  5 PagesMail.id:nareshsce@gmail.com ABSTRACT: Balancing load of distribution feeders is significant for falling of power loss and mitigating power flow. As the loop power controller is implanting for the active power and reactive power flows by change in voltage ratio and phase shift. So that the balancing of the load distribution feeders can be achieved. However it can include photovoltaic power producing in feeder balancing load, as a Taipower distribution feeder consisting of two feeders with large amountRead MoreSynopsis : Fig 1795 Words   |  8 Pagesstator lead reactive power, increases the real and imaginary part of rotor voltage which supplied by the rotor converter. Increasing DFIG stator lag reactive power, decreases the real part of rotor voltage in all speed range, increases the imaginary part of rotor voltage in sub-sunchronous speed range and decreases the imaginary part of rotor voltage in super-sunchronous speed range. Figs. 8(a-c) show the generated stator, rotor and total active powers respectively. Total active power is identicalRead MoreAn Interconnection Of Distributed Generations ( Dgs )1267 Words   |  6 Pagesproviding both power and heat. To ensure that the microgrid is operated as a single aggregated system and meets power quality, reliability and security standards, power electronic interfaces and controls need to be applied [1-2]. A microgrid should be capable work in two modes, grid-connected or islanded. The DGs are usually power electronics interfaced and in the grid-connected mode of operation, a microgrid is supported by the main grid’s voltage and frequency. In the island mode, the DG control is responsibleRead MoreLocation Of Statcom For Power Flow Control2401 Words   |  10 PagesLocation of STATCOM for Power Flow Control Dr..Neelakantappa, Narasapur, Hyderabad.,India Dr.AmjanShaik Narasapur, Hyderabad.,India ABSTRACT: Power flow control in a long transmission line plays a vital role in electrical power system. This paper uses the shunt connected STATCOM for the control of voltage and power flow. The proposed device is used in different locations such as sending end, middle and receiving end of the transmission line. The PWM control is used to generate the firing pulsesRead MoreLaonaon Modified Spider Monkey Algorithm821 Words   |  4 PagesOptimization Algorithm for Solving Optimal Reactive Power Dispatch Problem† expressed that to reduce the real power loss, modifications were required in local and global leader phase and a Modified Spider Monkey Algorithm (MMO) was introduced. Paper also upheld that MMO is more favorable for dealing with non-linear constraints. The algorithm was examined on the IEEE 30-bus system to minimize the active power loss. H. Sharma, et al. [45] in 2016, discussed in â€Å"Optimal placement and sizing of the capacitorRead MoreOptimal Power Flow Using Differential Evolution Algorithm Essay2776 Words   |  12 PagesOptimal Power Flow Using Differential Evolution Algorithm S.Vidya Sagar Reddy Dr.P.Venkata Prasad, Professor Department of Electrical and Electronics Engineering Department of Electrical and Electronics Engineering Chaitanya Bharathi Institute Of Technology(Autonomous) Chaitanya Bharathi Institute Of Technology(Autonomous) Hyderabad, India Hyderabad, India vidyasagar.sabbella@gmail.com pvp_reddy@yahoo.co.uk Abstract— This paper presents an efficient and reliable evolutionary based approach to solveRead MorePhotovoltaic ( Pv ) Based Distributed Generators Essay2088 Words   |  9 Pagesgenerators (DGs) are generally controlled as current source to deliver only active power generated by PV source to the grid. However, reactive power transfer capability of such DGs must be utilized to satisfy reactive power demand of the load or to provide reactive power support to the grid. Reactive power management for several such PV based DGs operating in parallel is a challenging task as the available reactive power capacity of each depends on the environmental conditions and may vary continuously