Simulation the Wind Grid Code Requirements for Wind Farms Connection in Kosovo Transmission Grid

Gashi, Agim; Kabashi, Gazmend; Kabashi, Serbeze; Ahmetaj, Skender; Veliu, Valon

doi:10.4236/epe.2012.46062

Cited by 30 publications

(6 citation statements)

References 6 publications

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“…This proposed method was implemented in a case study of an 80-MW wind farm in Kosovo using the "Shtime" project, as presented in [33]. The model of the distribution network is shown in Figure 5.…”

Section: Case Study and Resultsmentioning

confidence: 99%

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Optimal Capacitor Placement in Wind Farms by Considering Harmonics Using Discrete Lightning Search Algorithm

Sirjani¹

2017

Sustainability

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Currently, many wind farms exist throughout the world and, in some cases, supply a significant portion of energy to networks. However, numerous uncertainties remain with respect to the amount of energy generated by wind turbines and other sophisticated operational aspects, such as voltage and reactive power management, which requires further development and consideration. To fix the problem of poor reactive power compensation in wind farms, optimal capacitor placement has been proposed in existing wind farms as a simple and relatively inexpensive method. However, the use of induction generators, transformers, and additional capacitors represent potential problems for the harmonics of a system and therefore must be taken into account at wind farms. The optimal location and size of capacitors at buses of an 80-MW wind farm were determined according to modelled wind speed, system equivalent circuits, and harmonics in order to minimize energy losses, optimize reactive power and reduce the management costs. The discrete version of the lightning search algorithm (DLSA) is a powerful and flexible nature-inspired optimization technique that was developed and implemented herein for optimal capacitor placement in wind farms. The obtained results are compared with the results of the genetic algorithm (GA) and the discrete harmony search algorithm (DHSA).

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Section: Case Study and Resultsmentioning

confidence: 99%

“…The model of the distribution network is shown in Figure 5. The required data from wind turbine generators, wind turbine transformers, substation transformers, and cables are presented in detail in [33].…”

Section: Case Study and Resultsmentioning

confidence: 99%

Optimal Capacitor Placement in Wind Farms by Considering Harmonics Using Discrete Lightning Search Algorithm

Sirjani¹

2017

Sustainability

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“…In the case of wind turbines, [152] provides a clear picture of the differences between different countries, summarised in Figure 32. Figure 32.…”

Section: Ride Through Capability After Voltage Sagsmentioning

confidence: 99%

“…Figure 32. Summary of the fault ride through requirements in wind energy for different countries [152]. Kindly provided by Gazmend Kabashi.…”

Section: Ride Through Capability After Voltage Sagsmentioning

confidence: 99%

A Review of Wave-to-Wire Models for Wave Energy Converters

2016

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Control of wave energy converters (WECs) has been very often limited to hydrodynamic control to absorb the maximum energy possible from ocean waves. This generally ignores or significantly simplifies the performance of real power take-off (PTO) systems. However, including all the required dynamics and constraints in the control problem may considerably vary the control strategy and the power output. Therefore, this paper considers the incorporation into the model of all the conversion stages from ocean waves to the electricity network, referred to as wave-to-wire (W2W) models, and identifies the necessary components and their dynamics and constraints, including grid constraints. In addition, the paper identifies different control inputs for the different components of the PTO system and how these inputs are articulated to the dynamics of the system. Examples of pneumatic, hydraulic, mechanical or magnetic transmission systems driving a rotary electrical generator, and linear electric generators are provided.

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“…The DFIG manufacturers offer different characteristics options for reactive power generation [33]. Figure 3 shows the characteristic of active power (P) versus reactive power (Q) of a typical DFIG [34].…”

Section: Case Studymentioning

confidence: 99%

Simultaneous optimization of electrical interconnection configuration and cable sizing in offshore wind farms

Sedighi

Moradzadeh

Kükrer

et al. 2018

J. Mod. Power Syst. Clean Energy

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Offshore wind farm (OWF) is the largest renewable energy resource. The electrical interconnection cost of OWFs is a considerable fraction of the overall design cost of the farm. In order to minimize the investment and operational costs, this paper proposes an optimization formulation to find the optimal electrical interconnection configuration of wind turbines (WTs), and the optimal cable sizing simultaneously. This simultaneous minimization of total trenching length and cable dimensions creates a complex optimization problem that is solved by the harmony search (HS) algorithm. In this paper, two distinct methods of full and partial optimal cable sizing are considered to comprehensively assess the optimal interconnection layout of OWFs. Furthermore, various shipping and burying costs as well as various WTs power ratings are considered in order to investigate their impact on the optimal electrical interconnection system. The optimal electrical interconnection design obtained by the HS algorithm corresponds to a lower cost that together with the technological developments can help policy makers increase the use of offshore wind energy as a feasible unlimited renewable resource in their energy production portfolios.

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Simulation the Wind Grid Code Requirements for Wind Farms Connection in Kosovo Transmission Grid

Cited by 30 publications

References 6 publications

Optimal Capacitor Placement in Wind Farms by Considering Harmonics Using Discrete Lightning Search Algorithm

Optimal Capacitor Placement in Wind Farms by Considering Harmonics Using Discrete Lightning Search Algorithm

A Review of Wave-to-Wire Models for Wave Energy Converters

Simultaneous optimization of electrical interconnection configuration and cable sizing in offshore wind farms

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