Generally, Electronic Load Control (ELC) used in micro hydro power plant (MHPP) to controls the voltage between consumer load and a dummy load, still detects one parameter voltage or frequency generator only. Whereas in reality, any changes in the load on consumers, generator voltage and frequency also changed. When the consumer load down the electric current will be supplied to the dummy load, amounting to decrease in consumer load. When there is a transfer load, there will be distortion voltage and frequency, thus a special methods to reduce distortions by speeding up the process of transferring the electric load is needed. The proposed of this study is using fuzzy logic algorithm.To realize such a system, a comparison tool model of load control digital electronic fuzzy logic controller (FLC) and Proportional Integrator (PI) is required. This modeling using matlab program to simulate, the simulation result shows that the ELC based on fuzzy logic controller is better than conventional PI control, it seen from fast response to steady state condition. Keyword:Electronic load control Fuzzy logic Micro hydro power plant Proportional integral
<p>This paper aims to design and simulate an Electrical Permanent Magnet Generator (EPMG) for rural area wind power plant. The generators available in the market mostly are a kind of high speed induction generator which requires high rotational speed and an electricity to generate a magnetic field. In this project, a radial flux generator is designed to have a low speed rotation using permanent magnet type Neodymium Iron Boron (NdFeB). Software used for designing is Finite Element Method (FEM) Magnet software basis. The model also examined with Simulink/Matlab environment. Extensive modifications are applied to get optimum result by changing generator diameter, number of coils, the copper wire diameter, number of poles, and used slots. The simulation results obtained generator speed 500rpm, the average series voltage is 145 Vrms, the generator requires 18cm diameter, number of turn for each coil is 55, diameter of the copper wire used is 0.6mm, and number of poles is 8 pairs and 12 unit slots.</p>
Photovoltaics are becoming very popular, because the system does not produce pollution and can be installed anywhere, including in remote areas. However, in the use of photovoltaic found some common problems, it is difficult to get maximum and stable power. Therefore, to overcome these problems using Maximum Power Point Tracking method. On a photovoltaic system it is necessary to determine which converter will be used to increase the power output of the photovoltaic. The design of MPPT using gray wolf optimization algorithm that can track the output power quickly and reduce the oscillation in photovoltaic system. The result of the maximum power tracker using the gray wolf optimization algorithm is better than the incremental conductance algorithm of up to 0,4 s. Converters are used using soft - switching buck converter method to overcome the power losses that often arise in PV systems. The result of power output using soft-switching buck converter is greater than using buck converter. When comparing the efficiency of photovoltaic systems using the gray wolf optimization algorithm increases from using the incremental conductance algorithm.
Banyaknya lahan kosong yang belum termanfaat dengan baik di Desa Parangargo, Kecamatan Wagir, Kabupaten Malang perlu dimaksimalkan. Budidaya ikan tawar yang masih dilakukan secara konvensional menyebabkan kurang berkembanganya budidaya ikan di daerah tersebut. Ketersediaan sumber daya ikan diharapkan mampu menjadi sector utama dalam perekonomian nasional di era yang akan dating. Melalui edukasi masyarakat tentang budidaya ikan dapat membantu edukasi ketahanan pangan di masa pandemic covid-19. Pelatihan budidaya ikan lele dengan sistem biona inilah masyarakat umum di desa tersebut dapat teredukasi dalam pengolahan ikan selama satu tahun. Metode dalam kegiatan ini survey, ceramah dan pendampingan. Tahapan kegiatannya yaitu pengenalan materi, penyampaikan konsep dasar dan sosialiasi. Kegiatan ini dilengkapi instrument observasi dan angket. Dari ketiga tahapan tersebut sarana prasarana, materi dan narasumber memberikan dukungan dengan menunjukkan skor sebesar 91.33%, 90.67% dan 90.50%. Hal ini menujukkan bahwa materi yang diberikan sesuai dengan topik dan bemakna positif terhadap masyarakat.
Abstrak-Sel surya atau sering disebut energi photovoltaic (PV) adalah energi yang saat ini popular karena PV yang sangat ramah terhadap lingkungan tetapi dalam pengaplikasiannya secara konvensional sistem PV juga banyak mengalami kekurangan terutama terhadap efisiensi daya keluaran yang terbilang rendah. salah satu faktor yang mempengaruhi terhadap efisiensi daya sistem PV yaitu pada bagian konverter DC-DC. Konverter DC-DC sebagai sumber daya sistem elektronika yang dapat ditingkatkan efisiensinya dengan cara mengganti dioda pada konverter DC dengan MOSFET. MOSFET dapat mengurangi rugi konduksi pada konverter DC sinkron karena rugi daya konduksi MOSFET lebih rendah dari rugi daya konduksi dioda. Pada perancangan ini sistem PV menggunakan konverter DC tipe penurun tegangan dengan menggunakan metode MOSFET sinkronisasi untuk menggantikan dioda pada rangkaian konverter DC tipe penuru tegangan atau juga disebut dengan synchronous buck converter. Kemudian akan dibandingkan efisiensi daya antara synchronous buck converter dengan non-synchronous buck converter. Pada sistem PV menggunakan synchronous buck converter efisiensi daya yang dihasilkan ialah mencapai 98.47%, sedangkan efisiensi daya yang dihasilkan pada non-synchronous buck converter disistem PV lebih rendah ialah 96.81%. Ini membuktikan bahwa rugi konduksi pada MOSFET lebih rendah dibandingkan dengan rugi konduksi pada dioda. Kata Kunci : DC Konverter, Efisiensi daya , MOSFET sinkronisasi, Photovoltaic (PV)
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