scholarly journals Electric power processing using logic operation and error correction

2021 ◽  
Vol 8 (7) ◽  
pp. 202344
Author(s):  
Shota Inagaki ◽  
Shiu Mochiyama ◽  
Takashi Hikihara

In this study, electric power is processed using the logic operation method and the error correction algorithms to meet load demand. Electric power was treated as the physical flow through the distribution network, which was governed by circuit configuration and efficiency. The hardware required to digitize or packetize electric power, which is called power packet router, was developed in this research work for low power distribution. It provides an opportunity for functional electric power dispatching while disregarding the power flow in the circuit. This study proposes a new design for the network, which makes the logic operation of electric power possible and provides an algorithm to correct the inaccuracies caused by dissipation and noise. Phase shift of the power supply network is resulted by implementing the introduced design.

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (2) ◽  
pp. 55
Author(s):  
Rohmanita Duanaputri ◽  
Imron Ridzki ◽  
Egar Rahmat Maulana ◽  
Ayusta Lukita Wardani

  Kestabilan suatu sistem tenaga listrik sendiri merupakan kemampuan sebuah sistem tenaga listrik dalam mempertahankan tegangan, frekuensi, dan daya di setiap bus sistem interkoneksi pada kondisi normal baik sebelum dan sesudah terjadinya gangguan. Sistem akan memasuki keadaan ketidakstabilan ketika terjadi gangguan, peningkatan permintaan beban dan adanya perubahan kondisi sistem, keadaan tersebut akan menyebabkan penurunan performa sistem tenaga listrik. Pada tahun 2015-2019 pulau madura hanya terdapat lima gardu induk, seiring dengan pertambahan kebutuhan tenaga listrik di beberapa wilayah pulau madura, untuk memperbaiki mutu dan keandalan penyaluran tenaga listrik ke konsumen, hal inilah yang mendukung proyek penambahan Gardu Induk Guluk Guluk. Gardu Induk Guluk-Guluk merupakan salah satu bagian dari sub sistem Krian Gresik. Dengan adanya penambahan Gardu Induk Guluk-Guluk tersebut akan berpengaruh terhadap aliran daya dan tegangan pada sistem tenaga listrik. Analisis dilakukan pada kondisi normal sebelum dan setelah adanya Gardu Induk Guluk-Guluk. Kondisi tegangan pada sub sistem Krian Gresik saat sebelum dan sesudah pembangunan Gardu Induk Guluk-Guluk masih memenuhi standart, namun ada beberapa bus yang mengalami penurunan tegangan dibawah 95%. Gardu Induk yang mengalami penurunan tegangan dibawah 95% sebelum pembangunan Gardu Induk Guluk-Guluk, yaitu pada Gardu Induk Bunduran, Gardu Induk Porong, dan Gardu Induk Maspion. Saat setelah pembangunan Gardu Induk Guluk-Guluk, terdapat penambahan Gardu induk yang mengalami penurunan nilai tegangan, yaitu Gardu Induk Sampang, Gardu Induk Pamekasan, Gardu Induk Guluk-Guluk, dan Gardu Induk Sumenep. Aliran daya terbesar saat terjadi penurunan tegangan adalah pada bus Bus 1 Bunduran. The stability of an electric power system itself is the ability of an electric power system to maintain the voltage, frequency, and power in each interconnecting bus system in normal conditions both before and before the disturbance. The system will enter a state of instability when there is a disturbance, an increase in load demand and a change in system conditions, this situation will cause a decrease in the performance of the electric power system. In 2015-2019 Madura Island there are five substations, along with the increasing need for energy in the Madura Island area, to improve some and control electric power, this is what supports the addition of Guluk-Guluk Substations. Guluk-Guluk Substation is one part of the Krian Gresik sub-system. With the addition of the Guluk-Guluk Substation, it will affect the flow of power and voltage in the electric power system. The analysis was carried out under normal conditions before and after the Guluk-Guluk Substation. The voltage conditions in the Krian Gresik sub-system before and before the construction of the Guluk-Guluk Substation still met the standard, but there were several buses that experienced a voltage drop below 95%. Substations that experienced a voltage drop below 95% before the construction of the Guluk-Guluk Substations, namely the Bunduran Substation, Porong Substation, and Maspion Substation. After the construction of the Guluk-Guluk Substation, there were additional substations that experienced a decrease in voltage values, namely the Sampang Substation, Pamekasan Substation, Guluk-Guluk Substation, and Sumenep Substation. The largest power flow when there is a voltage drop is on the Bus 1 Bunduran.


2012 ◽  
Vol 433-440 ◽  
pp. 3964-3968
Author(s):  
Sung Min Ohn ◽  
Hwa Chang Song ◽  
Byong Hoon Jang

This paper presents a method to determine parameters of BTB (back-to-back) converters in terms of the enhancement of interface flow margins. Interface flow margin is by definition a measure of how much active power can be transferred from the external areas to the study area with the fixed load demand, and it is mainly constrained by system voltage stability. BTB converters are controllable equipments with the active power flow through them, and its DC link in fact can divide the AC systems at the location and hence can reduce the fault current level. This paper first calculates margin enhancement sensitivities at the nose point of F-V curves and formulates an optimization problem to update the BTB parameters to improve the margins. This procedure is repeated performed until the required margin enhancement is achieved.


2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Hassan Zahid ◽  
Farhana Umer ◽  
Zeeshan Rashid ◽  
Abdur Raheem ◽  
Rabia Shakoor ◽  
...  

The electrical infrastructure around the globe is expanding at a rapid rate for the sake of fulfilling power demands in the domestic, commercial and entertainment industries aiming to boost the living standards. In this regard, renewable energy sources (RES) are globally accepted potential candidates for maintaining inexhaustible, clean, and reliable electricity with a supplementary feature of economic prospect. The efficiency of power distribution at reduced cost to the consumers can be further enhanced by introducing a two-way billing system so-called net-metering which has the potential to overcome issues such as voltage regulation, power blackouts, overstressed grid and need for expensive storage systems thereby making it beneficial for the grid and the end user. This envisioning has encouraged the Government of Pakistan to install net-metering infrastructure at places which accommodate surplus renewable energy reserves. According to the Electric Power Act 1997, the National Electric Power Regulatory Authority (NEPRA) issued the net-metering rules and regulations in September 2015 by the endorsement of Federal Government which allowed the distribution companies in Pakistan to buy surplus electricity units generated by the consumers in order to partly reimburse the units imported from the utility grid. The aim behind this research work is to promote renewable energy utilization through net-metering mechanism in order to achieve maximum power. The export of units from consumer side to utility grid and vice versa can be made through bidirectional energy meter. In this paper, a solar net-metering analysis has been carried out on ETAP software to determine its benefits in a distribution network. Different scenarios have been investigated, and it is concluded that solar net-metering technique has multiple influential benefits, e.g., improvement in voltage regulation, reduction in transmission and distribution losses, increase in power availability, less billing to consumers, and reduction of loading on utility grid.


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