Creg Uploaded by. Alexandra Rico. Loading Preview. Sorry, preview is currently unavailable. You can download the paper by clicking the button. resolucion creg de pdf merge. Quote. Postby Just» Tue Aug 28, am. Looking for resolucion creg de pdf merge. Will be grateful. This CREG Regulation establishes the following articles: The connection to to the network backup: CREG Resolution / – Energy supply: through a.
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The proposed methodology consists of a technical and an economic analysis scheme. The tariff scheme for energy commercialization in the regulated customers CREG Such mean reliabilities are expressed as the following indexes: CandidateNational University of Colombia, luisluna84 gmail.
The simulation procedure described above is presented on a flowchart in Figure 2 B. However, if the DG units described in any of the two studies are connected, the utility would receive from its customers through the electricity bill, an annual bonus due to improvements in the reliability supplied. The simulation will advance from the reference moment to the Tf of the faulty component.
For simulating the first period, the iterative simulation procedure is applied for the same operation scheme without DGwhich is executed until the number of preset iterations is fulfilled for example, NSGA II algorithm; multiobjective optimization; relocation of distribution transformers; distribution systems.
In order to carry out the implementation of this study, it was necessary as a first step to bring up a simple key analysis for evaluating the results of the comparative method, which is shown in Figure 7.
The incentives scheme is complemented by a compensations scheme to ”worst served” customers, which seeks to reduce the dispersion of reliability supplied by an electric utility around its mean reliability. These guidelines consist in that the simulation time increases at irregular intervals, and the use of hourly demand curves for each customer. It is clear that the DG interconnection significantly changes the traditional concept of distribution systems operation, but it is a challenge for the near future that must be assumed and evaluated with attractive benefit-cost relationships for the different agents involved.
The fault condition for a load point is defined if: The customers who would install DG units would have a more detailed study, orientated towards calculating the estimated time for recovering investment costs due to the installation vreg these plants, according to the technology used. The incentives and compensations applied to electric utility are directly included in customers’ electricity bill, therefore, they are who promote the reliability improvement.
This is because the operation scheme designed for this study does not provide great benefits to the system reliability, however, represents a more realistic situation.
Based on the results presented in Table 3 and Figure 5it was observed 0997 without DG interconnected to test system, the estimated value of the ITAD reliability index came within the dead zone for the incentives scheme or zone number three Z3.
Methodology for assessing the impacts of distributed generation interconnection
On the other hand, despite the incentives and compensations scheme allows smaller variations in the bill behavior of passive customers, its application is constant.
This negotiation represents a very adequate and fair option for such customers, because they are who would improve the reliability by using their DG units as backup plants.
However, if the DG units described in either of the two studies are connected, the utility should compensate to such customers with a lower annual amount over the case without DG, due to the dispersion of the reliability supplied around the mean reliability would fall.
The ITAD reliability index and the incentives and compensations scheme adopted in the methodology are not evaluated quarterly as described in section II, but annually. Methods for Reliability Assessment The object of electrical network reliability assessment is to determine indexes reflecting the electricity continuity on distribution systems, substations, circuits or defined regions.
These impacts are discussed in the next section IV-C4. Reliability evaluation techniques can be based on analytical methods or simulation methods Billinton, Jonnavithula, The object of electrical network reliability assessment is to determine indexes reflecting the electricity continuity on distribution systems, substations, circuits or defined regions.
The incentives scheme consists of a dead zone Z3 where neither a penalty nor a bonus will be assigned. After, two assessment periods were simulated which considered different operation schemes for the DG interconnection in the test system. Although implementing DG is not prohibited in Colombia, no market schemes or interconnection technical specifications have been established for DG. The Colombian regulatory policies established by CREG resolution CREG,provided the rules for electric utilities concerning distribution system reliability.
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Events are presented to the operator on a grid display and in different colors according to its state, for example: The estimated values of the unit cost of electricity service described in Table 6 were the same for all passive customers, because these customers were connected to the same voltage level. This is because if the reliability became greatly improved, then passive customers would prefer not to have the electricity, because the electricity unit cost would be higher than the cost they are able to pay, that is the rationing cost.
Distribution System Modeling 1. From Figure 6 it was observed that the oper ation scheme that does not consider the DG interconnection has a high ITAD dispersion around its mean value, however, implementing either of the two studies would reduce this dispersion in different proportions. The remaining amount of such ENS is going to continue appearing and it will be evaluated with the same RC. These indexes allow assessing the distribution system reliability and the ITAD index.
This situation will not change unless incentive mechanisms are implemented by the state, which promote the use of DG through renewable energies. The feeder’s nominal voltage is An in-line transformer reducing the voltage to 4.
Applies the OSE Operative Sequence of Events logic, which allows recording of maneuvers operationsload transfers and partial restoration at High and Medium Voltage levels. In order to carry out the methodology application, it is necessary as a first step to simulate a reference period leading to determine the reliability level annually provided by the electric utility to its customers. It was considered that the period of useful life of a DG plant corresponds to 20 years, regardless of the technology type used.
How to cite this article. To simulate this reference period, the IEEE test feeder was modeled without considering the DG interconnection, and the iterative simulation procedure described in section III-A was then applied. This is because the price that could be negotiated between the crwg and the electric utility, to improve the reliability, does not cover the additional investment that the customer would do by the purchase of additional generation capacity used as backup for the system.
In OMS, the network map is geographically visualized. This is because, despite the CU dg allows a greater variation in the bill behavior of passive customers, the application period is very short, because the DG units operate as backup plants to fault conditions in the system.
The methodology was adapted for its application to the Colombian regulatory conditions related to: On the other hand, creh situation is not as beneficial for DG owner customers or for passive customers, due to the high investment and generation costs that still keep most of the DG technologies. The generation technologies that wish to be studied for each DG unit, depending on the primary energy sources available at the installation site.
ITAD performance index, which determines the reliability level supplied by an electric utility during the calculation quarter. By the inverse transformation method and using the probability density function of each component, such random numbers are converted to times to failure Tf.
Both methods have advantages and disadvantages depending on the scenarios considered, the system features, the available tools and the desired accuracy in studying a particular system, which should be considered when choosing a reliability evaluation method. To implement the proposed methodology, a computational tool was developed using MATLAB and the simulation technique of Monte Carlo sequential of mixed time. In the absence of an existing event, the system creates a new one.
For simulating each of these periods, the iterative simulation procedure for years of analysis was applied.