GOOSE Message to Protect and Control Applications Using WLAN With IEC 61850v

تم توحيد البروتوكولات الموحدة في واجهة التطبيق والنمادج IEC 61850 الجديد بين الاستقرار والأمان وقابلية التشغيل البيني والنمذجة ورسم الخرائط لمحطة فرعية والموثوقية. في الوقت الحاضر، تعتبر شبكة إيثرنت المحلية LAN باهظة الثمن والمعتمدة على الألياف بالرغم من أن هذه التكنولوجيا الأكثر انتشارًا لمحطات توزيع الجهد المتوسط والمنخفض. وللتغلب على هذه المشكلة، تم تقديم شبكة المنطقة المحلية اللاسلكية (WLAN) لملاءمتها وتطبيقاتها المتوافقة مع المواصفة IEC 61850: الأتمتة وقياس الاستهلاك؛ والتحكم، والمراقبة، وحماية التيار الزائد. في هذا البحث تمت دراسة شبكة IEEE 802.11n WLAN عند استخدامها في العديد من التطبيقات المدعومة من IEC 61850 لأتمتة محطات التوزيع. تعد رسالة GOOSE تطبيقًا مهمًا جدًا لحماية التطبيقات والتحكم فيها باستخدام البروتوكول الجديد  IEC 61850 .             The new IEC 61850 integrates stability, security, interoperability, modeling, mapping to a substation, and reliability. Presently, at the time being expensive fiber-based Ethernet LAN is the most prevalent technology for medium and low-voltage distribution substations. To overcome this problem Wireless Local Area Network (WLAN) has been introduced for its suitability and applications that are compliant with IEC 61850: automation, metering; control, monitoring; and over-current protection. In this paper, the IEEE 802.11n WLAN is studied when used in various IEC 61850-supported applications for substation automation. GOOSE message is a very important application to protect and control applications using the new protocol IEC 61850

The impact of partial discharge on the dielectric properties of refined bleached and deodorized palm oil (RBDPO)

Several years ago, insulation oil played an important role in electrical power equipment. Mineral oil extracted from petroleum resources (a non-renewable source) has been widely used as an insulating material in the transformers. Therefore, there is a need to find renewable alternatives to the petroleum-based mineral oil. Refined bleached and deodorized palm oil (RBDPO) is a palm-based oil which has undergone several modifications. In this paper, the dielectric properties of RBDPO and the conventional transformer oil were investigated, followed by an investigation of its partial discharge (PD) impact on the dielectric properties. The breakdown voltage was measured according to the international electrotechnical commission (IEC 6056) standard and the viscosity test was done according to BS EN ISO 3104:1996. The experiments have proved that RBDPO can be used as an insulating oil due to the closeness of its dielectric properties compared to the conventional oil

Shunt Hybrid Active Power Filter Based on Two Compensation Strategies with PI and Fuzzy Logic Controllers

Industrial designs have tremendously changed within the last decade, with its time and nonlinear variation loads in power frameworks spectrum expanding widely. This revolution has resulted in increased quality control problems such as current unbalance, current and voltage harmonics, flicker and poor power factor in control frameworks. The aim of this paper is to address this problem through the development of Synchronous Reference Frame and Reactive Power (SRF and P-Q) control methods. The DC voltage was regulated to its set reference for providing the current reference using proportional-Integral (PI) and fuzzy logic controllers. From the results, Fuzzy logic control was shown to achieve an adequate DC capacitor energy storage optimization, the sinusoidal type of the current and the change of the power factor. A low Total Harmonic Distortion (THD) that met the suggestions of IEEE- 519 standard on symphonious levels was achieved with the proposed method

Enhancement of cascaded multi-level VSC STATCOM performance using ANN in the presence of faults

A system can be disturbed in terms of stability when connected to a number of loads at the distribution ends or when subjected to faults. To reverse such systems to a stable state, FACTS devices such as static synchronous compensator (STATCOM) are used. In this paper, a cascaded multi-level voltage source converter (VSC) STATCOM was designed and implemented with a novel space vector pulse width modulation (SVPWM) scheme. Artificial neural network (ANN) controller was used instead of instead of Proportional-Integral (PI) controller in the proposed scheme to improve the response time (RT) and performance of STATCOM in terms of power factor (PF) and voltage amplitude during periods of voltage sag. During the implementation, two fault sources (single-line-to-ground (SLG) and line-to- line (LL) faults) were used to create voltage sag. STATCOM was subjected to performance evaluation in the presence of these disturbances via MATLAB simulation in IEEE 3-bus system. The outcome of the simulation studies showed the ANN controller to perform better than PI as it was able to rapidly recover voltage value (<1 cycle) with unity PF

Comparisons of PI and ANN controllers for shunt HPF based on STF-PQ Algorithm under distorted grid voltage

This paper proposes a shunt hybrid power filter (HPF) for harmonic currents and reactive power compensation under a distorted voltage and in a pollutedenvironment. For this purpose, the reference current of the shunt HPF is computed based on the instantaneous reactive power (p-q) theory with self tuning filter (STF). In order to adjust the dc voltage as a reference value, PI and ANN controllers have been utilized. Moreover, the system has been implemented and simulated in a MATLAB-SIMULINK platform, and selected results are presented. Therefore, the results verified the good dynamic performance, transient stability and strong robustness of the ANN controller. Furthermore, the shunt HAPF with ANN controller has been found to be in agreement with the IEEE 519-1992 standard recommendations on harmonic levels

Enhancing the performance of cascaded three-level VSC STATCOM by ANN controller with SVPWM integegration

This article presents a cascaded three-level voltage source converter (VSC) based STATCOM employing an artificial neuron network (ANN) controller with a new simple circuit of space vector pulse width modulation (SVPWM) technique. The main aim of utilizing ANN controller and SVPWM technique is to minimize response time (RT) of STATCOM and improve its performance regard to PF amplitude, and total harmonic distortion (THD) of VSC output current during the period of lagging/leading PF loads (inductive/capacitive loads). The performance of STATCOM is tested using MATLAB/SIMULINK in IEEE 3-bus system. The simulation results clearly proved that the STATCOM with intelligent controller is more efficient compared to a conventional controller (PI controller), where ANN enables the voltage and current to be in the same phase rapidly (during 1.5 cycles) with THD less than 5%

The impact of partial discharge on the dielectric properties of refined bleached and deodorized palm pil (RBDPO)

Several years ago, electric power equipment, insulation oil played the roles of the electrical insulation. Mineral oil has been widely used in oil impregnated electric equipment for many years. It is extracted from petroleum that is a non-renewable energy source, so its flash/fire point is low and might run out in the future. Therefore, this petroleum based oil needs to be replaced with a new type of oil that is friendly to the environment. Refined bleached and deodorized palm oil (RBDPO) is a palm based oil that has been modified in order to overcome the environment and oxidation problems. This paper deals with the experimental testing to investigate the impact of partial discharge (PD) on the dielectric properties of RBDPO. The performances of oil samples were evaluated using the test results of breakdown voltage where the Breakdown voltage was measured According to the international electrotechnical commission (IEC 6056) using standard test cell. The experiments were found that the RBDPO results were in good agreement and have high biodegradability

Shunt hybrid active power filter based on two compensation strategies with PI and fuzzy logic controllers

Industrial designs have tremendously changed within the last decade, with its time and nonlinear variation loads in power frameworks spectrum expanding widely. This revolution has resulted in increased quality control problems such as current unbalance, current and voltage harmonics, flicker and poor power factor in control frameworks. The aim of this paper is to address this problem through the development of Synchronous Reference Frame and Reactive Power (SRF and P-Q) control methods. The DC voltage was regulated to its set reference for providing the current reference using proportional-Integral (PI) and fuzzy logic controllers. From the results, Fuzzy logic control was shown to achieve an adequate DC capacitor energy storage optimization, the sinusoidal type of the current and the change of the power factor. A low Total Harmonic Distortion (THD) that met the suggestions of IEEE- 519 standard on symphonious levels was achieved with the proposed method

The Impact of Partial Discharge on the Dielectric Properties of Refined Bleached and Deodorized Palm Oil (RBDPO)

Several years ago, insulation oil played an important role in electrical power equipment. Mineral oil extracted from petroleum resources (a non-renewable source) has been widely used as an insulating material in the transformers. Therefore, there is a need to find renewable alternatives to the petroleum-based mineral oil. Refined bleached and deodorized palm oil (RBDPO) is a palm-based oil which has undergone several modifications. In this paper, the dielectric properties of RBDPO and the conventional transformer oil were investigated, followed by an investigation of its partial discharge (PD) impact on the dielectric properties. The breakdown voltage was measured according to the international electrotechnical commission (IEC 6056) standard and the viscosity test was done according to BS EN ISO 3104:1996. The experiments have proved that RBDPO can be used as an insulating oil due to the closeness of its dielectric properties compared to the conventional oil