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| 26/01/2012 Specification of Power Quality Performance of the Transmission Network in the Republic of Macedonia and Recommendations for Optimal Investments for Improving the Power Quality as well as Voltage Conditions in the Power Transmission Network in Macedonia |
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for: MEPSO (Macedonia)
type: Study
finishing date: September 2012
team: Prof. Dr. Jovica V. Milanovic - Project Manager, Principal Consultant; A. Oros, T. Martinovic, P. Miksa, Z. Velickovic, M. Vukovic - Consultant more...[...]
for: MEPSO (Macedonia)
type: Study
finishing date: September 2012
team: Prof. Dr. Jovica V. Milanovic - Project Manager, Principal Consultant; A. Oros, T. Martinovic, P. Miksa, Z. Velickovic, M. Vukovic - Consultant
The goal of the project was to raise the knowledge level within AD MEPSO on both aspects, general theoretical and practical knowledge and knowledge on the actual disturbance levels within the transmission system, to prepare specifications of the power quality performance of transmission network in the Republic of Macedonia and trough measurements of the power quality in several defined locations in an optimal way to give recommendations for appropriate investments for improving the power quality in the Macedonian transmission network. A measurement campaign included detailed analysis of the measurements needed to identify sources of disturbances, to evaluate the level of power quality in the transmission system and to set planning levels.
Key objectives of the power quality study and project overall: power-quality measurements, analysis and interpretation of these measurements, voltage and current harmonics, involvement in standard-setting activities, setting of power-quality limits, and power-quality education.
The following activities have been performed:
· Estimated voltage quality throughout the 110-kV system in Macedonia via measurements performed in 110/x kV substation;
· Harmonic analyses
· Comparing the voltage disturbance levels with limits recommended in international documents (IEC, CIGRE and CENELEC).
· Relating the voltage disturbance levels to the local load, and to loads and power flows elsewhere.
· Identifying critical situations, where the disturbance levels are close to or exceeding the abovementioned limits.
· The transfer of knowledge on power quality from the Consultant to the MEPSO
· Definition of further studies, recommendations for improvements;
· Defining appropriate future investments in the equipment for improvement of the Power Quality performance in the Transmission Network.
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| 27/12/2011 Development of a Grid Code for the Transmission System of Macedonia |
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for: MEPSO (Macedonia)
type: Consulting services
finishing date: March 2012
team: FEIT-EKC Consortium, EKC team: N. Jovic - Project Leader, M. Vukovic - Consultant, A. Oros more...[...]
for: MEPSO (Macedonia)
type: Consulting services
finishing date: March 2012
team: FEIT-EKC Consortium, EKC team: N. Jovic - Project Leader, M. Vukovic - Consultant, A. Oros
The objective of the project is to harmonize the existing planning, operational and connection standards and requirements with actual Macedonian legislative related to the energy sector and with European legislative established and guided by European Commission (EC), European Network of Transmission System Operators for Electricity (ENTSO-E) and Agency for the Cooperation of Energy Regulators (ACER). The main changes to the existing grid code in Macedonia are made in relation to the following:
o Modification of the grid code structure towards the ENTSO-E concept
o Procedures for long-term and operational planning, as well as power system control in real time, especially for the exchange of necessary data needed for planning, preparation of daily, weekly, monthly and yearly plans; evaluation of the system reserve, voltage and reactive power control in the network and creation of defense plan.
o Definition of rights, obligations and responsibilities between TSO and transmission system users and delimitation of ownership among them in accordance with the Energy Law and the Electricity market rules
o Harmonization of requirements for connection of the new transmission system users in terms of ENTSO-E rules, with special emphasis on renewable power plants and technical requirements related to the quality of electricity in transmission system; Development of connection charging methodology in accordance with Energy Law, Construction Law and existing connection procedures in MEPSO
o Technical requirements for measuring, protection devices and telecommunication equipment
o Organization of the connection procedure related to different phases of project development, in order to increase efficiency and flexibility in preparation of technical documentation and obtaining the necessary requirements and permits
o Procedures for the technical approval of the connection, commissioning and trial operation of the new facility connected to the electricity transmission network.
The following activities have been performed:
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| 23/12/2011 Software Solution for Automated Day Ahead Congestion Forecast Procedure (DACF) |
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for: KfW Bank (Germany), OST (Albania)
type: Software
finishing date: June 2012
team: EKC-DMS Consortium, EKC team: Z. Vujasinovic – Project Leader, Dj. Dobrijevic – Consultant, N. Jovic, B. Sijakovic more...[...]
for: KfW Bank (Germany), OST (Albania)
type: Software
finishing date: June 2012
team: EKC-DMS Consortium, EKC team: Z. Vujasinovic – Project Leader, Dj. Dobrijevic – Consultant, N. Jovic, B. Sijakovic
The project task is the development of Automatic software solution for DACF procedure, for SEE TSOs: OST-Albania, APG-Austria, NOS-B&H, ESO-Bulgaria, HEP OPS-Croatia, MEPSO-FYR Macedonia, HTSO-Greece, CGES-Montenegro, TEL-Romania, ELES-Slovenia, TEIAS-Turkey, TERNA-Italy, KOSTT-UNMIK.
Software solution is provided for the phases of DACF procedure:
A) Producing the individual 24 Forecast models for a beneficiary TSO, on the basis of snapshot models and additional forecast data
B) Merging of the model into the interconnection (or regional) models
C) Performing the DACF ‐ load flow and contingency analyses
Software solution supports working with UCTE and CIM XML data format.
The following activities have been performed:
· Software license
· User Manual, documentation
· Users training.
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| 22/12/2011 TNA Software Application |
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for: Central Allocation Office - CAO (Germany)
type: Software
finishing date: January 2012
team: EKC-DMS Consortium, EKC team: Z. Vujasinovic - Project Leader, N. Jovic more...[...]
for: Central Allocation Office - CAO (Germany)
type: Software
finishing date: January 2012
team: EKC-DMS Consortium, EKC team: Z. Vujasinovic - Project Leader, N. Jovic
The project goal is the development and delivery of software licenses "Transmission Network Analyzer" (TNA) with modules for:
- Load flow, security analyses (n-1, n-x), sensitivity analyses
- Analysis and computations for coordinated auctions (PTDF/MF, BFRM)
- Calculations of NTC
- Validation, correction and merging of network models.
The following activities have been performed:
· Software license
· User Manual, documentation
· Users training.
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| 07/12/2011 Consultant Services in the Process of Preparing Market Code |
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for: MEPSO (Macedonia)
type: Consulting Services
finishing date: November 2011
team: T. Martinovic - Project Manager, M. Vukovic – Consultant, Z. Vujasinovic more...[...]
for: MEPSO (Macedonia)
type: Consulting Services
finishing date: November 2011
team: T. Martinovic - Project Manager, M. Vukovic – Consultant, Z. Vujasinovic
Project is related to the consulting services for preparation Market Code document in Macedonia. Market Operator is responsible to cooperate with Regulatory energy committee in the preparation of Market Code. Within this project, intellectual services are provided to AD MEPSO during preparation and adoption of Market Code.
Electricity market represents organizational framework within small tariff electricity consumers, suppliers and electricity traders, electricity producers, transmission system operator, distribution system operator or qualified consumers procure electricity from electricity producers, suppliers and electricity traders for further trade or its own purposes in line with Market Code.
The following activities have been performed:
· Review of Energy Law and other legal regulations
· Review of proposal of the Market Code
· Analysis of documents and tables submitted with draft version of Market Code
· Comments on proposed draft version of Market Code in cooperation with competent experts from AD MEPSO
· Participation in preparation of final version of Market Code in cooperation with Regulatory energy committee.
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| 03/10/2011 Development of Reliability Indicators for the Armenian Power System Operation |
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for: Scientific Research Institute of Energy – SRIE (Armenia)
type: Study
finishing date: September 2012
team: SRIE-ENTEC-EKC consortium, EKC team: P. Mikša - Task Leader, T. Martinović more...[...]
for: Scientific Research Institute of Energy – SRIE (Armenia)
type: Study
finishing date: September 2012
team: SRIE-ENTEC-EKC consortium, EKC team: P. Mikša - Task Leader, T. Martinović
With overall goal to increase the quality of services and increase reliability and security of supply in power grid of Armenia, statistical analyses of data for outages in transmission elements and Electric Power not Served is performed. Overall goal was to develop methodology for reliability assessment, as well as select reliability indices most suitable for power system of Armenia for future reliability analyses. These analyses had as a goal to identify weak points of transmission network and to give recommendations how to increase overall level of reliability according to the practice in other countries.
The following activities have been performed:
· Data collection and verification
· Load flow analyses
· Reliability analyses and reliability indices evaluation.
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| 31/08/2011 Connection study of WPP Mozura (46 MW) to the transmission network of Montenegro |
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for: CGES (Montenegro)
type: Study
finishing date: October 2011
team: N. Jović - Project Leader, M. Vukovic and N. Rusanov - Consultants, M. Stojković, T. Martinović more...[...]
for: CGES (Montenegro)
type: Study
finishing date: October 2011
team: N. Jović - Project Leader, M. Vukovic and N. Rusanov - Consultants, M. Stojković, T. Martinović
The main task of the connection study is to analyze all possible connection variants and to determine optimal point of common coupling (PCC) between the WPP Mozura and transmission network, taking into account valid transmission network development plan and grid connection code of Montenegro. Optimal PCC analyses have been performed in accordance with the principle to fit the PCC as much as possible into the valid transmission network development plan in order to minimize the total investment costs of the connection infrastructure.
Compatibility of WPP Mozura connection terms with the Montenegrin grid code rules has been checked according to the following analyses and corresponding measures has been defined in the case of non-compliance:
o Load flow analyses – network element loadings, security N-1 assessment, power losses, voltage stability and reactive power control
o Short circuit analyses
o Voltage flickers emission analyses (power quality)
o Impact of intermittent WPP Mozura production on EPS of Montenegro (secondary and tertiary reserve)
o Dynamic stability – fault ride through capability, mid-term stability assessment and small signal stability analyses.
The following activities have been performed:
· Optimal PCC analyses
· Load flow analyses
· Network security assessment
· Voltage stability and reactive power control analyses
· Short circuit analyses
· Voltage flickers analyses
· System reserve analyses
· Transient stability analyses
· Mid-term stability analyses
· Small signal stability analyses
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