دانلود رایگان مقاله انگلیسی سیستم مدیریت منابع توزیعی موثر برای پشتیبانی ولتاژ محلی به همراه ترجمه فارسی
عنوان فارسی مقاله | سیستم مدیریت منابع توزیعی موثر برای پشتیبانی ولتاژ محلی |
عنوان انگلیسی مقاله | Effective Distributed Resources Management System For Local Voltage Support |
رشته های مرتبط | مهندسی برق، تولید، انتقال و توزیع، سیستم های قدرت و مهندسی الکترونیک |
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کیفیت ترجمه | کیفیت ترجمه این مقاله متوسط میباشد |
توضیحات | ترجمه این مقاله به صورت خلاصه انجام شده است. |
مجله | بیست و سومین کنفرانس بین المللی توزیع برق – 23rd International Conference on Electricity Distribution |
سال انتشار | 2015 |
کد محصول | F838 |
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جستجوی ترجمه مقالات | جستجوی ترجمه مقالات مهندسی برق |
فهرست مقاله: چکیده |
بخشی از ترجمه فارسی مقاله: مقدمه |
بخشی از مقاله انگلیسی: INTRODUCTION Within the perspective of future Smart Grids, the deployment of advanced networking technologies will tend to improve the efficiency and reliability of the power network, by enabling an integration of active DERs and by providing the framework for new services to system operators. Amongst the impacts to be addressed in distribution network operation in the presence of Distributed Generation (DG), the challenge to maintain an acceptable voltage level has become a major concern, as an increase of DG penetration can result in local overvoltage occurrences above the permissible level. A large body of literature investigates the possibilities of leverage of active power flexibility by requesting Active Demand resources and storage units for voltage control [1-2]. Some centralized or coordinated strategies rely on real-time control decisions made from advanced functions in Distribution Management System (DMS), using network devices such as OLTC, capacitor banks, voltage regulator. Other approaches, i.e. semicoordinated or distributed strategies, tend to use a local voltage-related control of DERs, possibly associated with a coordination of network devices. This configuration emphasizes the roles of a new type of enterprise management system, dedicated to the active participation of DERs. This management system shall be able to optimize and control the potential flexibilities of DERs in the most efficient manner. The present paper explores this latest approach. A dedicated DERMS solution (Distributed Energy Resource Management System) shall take place in the Utility Distribution information system. The requirements of effective DER participation in distribution operation and planning, like for instance the operations of voltage mitigation by the DSO, imply the capabilities to effectuate an anticipated steady-state estimation of the system variables like voltage magnitude for different time periods. The present paper is centred on some of the issues regarding the implementation of the relevant power system applications, including the modelling part, the calculation engine, the integration and use of standards for better scalability and interoperability. Each section is illustrated with the choices done within the Nice Grid project. This project, part of the European RD&D Project GRID4EU, aims at facilitating the integration and usage of DER in distribution networks, through smart grid solutions with wide replication and scalability potential [3-4]. DERMS ROLE AND CONCEPTS To facilitate the integration of DG, utility decision systems with active management of grid-connected DERs should take advantage of the DER control capabilities for improving the reliability and overall quality of service for the electric distribution customers and producers. The current generation of Distribution Management Systems is merely dealing with an extension of the traditional set of functionalities so that DER impacts can be included or not in the analysis tools: e.g. network optimization, outage management, fault location, service restoration, and so on. In most cases, DSO lever of DER control is limited to the monitoring of the power output for the largest DERs connected on the distribution network, with a possibility of remote tripping during critical conditions. More recent Smart Grid projects aim to implement more advanced functionalities; some examples amongst them are Volt-Var Control (VVC) or optimal network reconfiguration [5]. As an alternative approach and a complementary management lever, a DERMS solution may take place in an enterprise environment as an application dedicated to active DER integration. It aims at managing the complexity of many diverse and distributed DERs, by getting their unique statuses and specific capabilities of each, and presenting these capabilities, mostly under a simplified, standardized and generally aggregated form, to other third-party applications, and finally, being able to dispatch coordinated control settings, accordingly. Another feature, and also justification for a DERMS as a separate logical entity, is that the challenge of DER integration can take place in a whole system organization with multiple stakeholders, radically different from the traditional vertically integrated power system. Because of the distributed responsibility perimeters amongst the different participants, it may be not possible to ensure a direct control of the flexibility reserve of customerowned DER units, both for practical and regulatory reasons. New actors, the technical or economical aggregators, may be responsible for the aggregation and the dispatching of the DERs that belong to their respective portfolios. The aggregator is able to provide services as if the DERs were a single entity, on a specific area, through a coordination of various dispatchable flexibility assets within the electrical installations of participating prosumers. It is hence necessary to integrate the exchanges with third parties at a same level than the advanced network applications, while the coordination of the operations is managed by the distribution operator. In such a configuration, DERMS is expected to provide a facilitation service between the network operators and the commercial aggregators and/or the DER control devices, ensuring information traceability and rationalization of the data exchanges, about transaction parameters, control settings, resource statuses. DERMS shall also maintain the performance of its advanced control decisions, such as voltage control, without significant loss of accuracy due to aggregation [6]. The functionalities addressed by a DERMS instance can be very different from utility to utility, or from a demonstration project to another. The next section aims at illustrating one use case within the Nice Grid project. |