Economic Value Analysis on Voltage Stabilization by Reactive Power Compensation of Demand Side Equipment

2015 ◽  
Vol 135 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Masaaki Takagi ◽  
Naoto Tagashira ◽  
Kenji Okada ◽  
Hiroshi Asano
2020 ◽  
Vol 140 (3) ◽  
pp. 186-197
Author(s):  
Masaaki Takagi ◽  
Kentaro Fukushima ◽  
Naoto Tagashira ◽  
Kenji Okada ◽  
Hiroshi Asano

2019 ◽  
Vol 139 (11) ◽  
pp. 688-699
Author(s):  
Masaaki Takagi ◽  
Kentaro Fukushima ◽  
Naoto Tagashira ◽  
Kenji Okada ◽  
Hiroshi Asano

2019 ◽  
Vol 139 (12) ◽  
pp. 746-756
Author(s):  
Masaaki Takagi ◽  
Naoto Tagashira ◽  
Kenji Okada ◽  
Hiroshi Asano

2018 ◽  
Vol 28 (104) ◽  
pp. 154-160
Author(s):  
I. Doroshenko, ◽  
◽  
T. Druchyna, ◽  
Yu. G. Sarahman ◽  

Author(s):  
Roger R Tabalessy

Coastal areas can either meet the human needs or give great contribution to the development. However, rapid infrastrural development in Sorong, west Papua, has been followed by high demand for mangrove timber and caused mangrove forest degradation due to exploitation. This exploitation could also result from high economic value of the mangrove timber. This study was done to analyze the economic value of mangrove wood utilized by the people to support the development process in Sorong. This study used primary data obtained through interviews and the economic value calculation of mangrove forests. It found that Sorong had mangrove economic value of IDR 165,197,833, 491. Wilayah pesisir selain dapat memenuhi kebutuhan hidup manusia juga memberikan kontribusi yang besar bagi pembangunan. Cepatnya pembangunan infrastruktur di Kota Sorong diikuti pula dengan tingginya permintaan akan kayu mangrove dan menyebabkan terjadinya degradasi hutan mangrove akibat eksploitasi. Eksploitasi ini disebabkan juga akibat kayu mangrove memiliki nilai ekonomi. Penelitian yang dilakukan ini bertujuan untuk menganalisis nilai ekonomi kayu mangrove yang dimanfaatkan oleh masyarakat Kota Sorong dalam proses menunjang pembangunan. Penelitian ini menggunakkan data primer yang diperoleh melalui hasil wawancara dan perhitungan nilai ekonomi hutan mangrove. Hasil penelitian ini menunjukkan nilai ekonomi ekosistem hutan mangrove yang berada di Kota Sorong adalah Rp165.197.833.491.


2015 ◽  
Vol 9 (1) ◽  
pp. 591-599
Author(s):  
Ma Wenchuan ◽  
Zhitong Li ◽  
Chen Daochang ◽  
Qi Jiaming ◽  
Zhou Qiang ◽  
...  

For resolving the problem that power filter cannot work normally because TCR (thyristor controlled reactor) generates extra third harmonic current under asymmetrical voltage, the paper proposes the estimation method of current capacity that TCR generates extra third harmonic current under asymmetrical voltage. Considering extra third harmonic current under asymmetrical voltage, Optimum method based on genetic algorithm is used to design the parameters of power filter. With reactive power compensation and harmonic suppression project of a steel mill as example, the proposed method is simulated by Matlab. Simulation results show optimized power filter can eliminate extra third harmonic current effects under asymmetrical voltage, meet the requirement of reactive power compensation, reduce harmonics current that load injects into system, and guarantee the power filter safe operation under asymmetrical voltage.


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