船型試驗用電源に對する自動電壓調整器の應用

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The contents of the present paper are as follows : I Introduction. II Electrical equipments for driving the model towing truck before the installation of the automatic voltage regulator. III Several methods of obtaining constant voltage direct current source. IV Course of adoption of the automatic voltage regulator. V Automatic voltage regulator using grid-controlled ionization tube. VI Running performance of the model towing truck after the installation of the automatic voltage regulator. VII Preliminary experiments for adopting the second automatic regulator for constant speed operation of truck. VIII Conclusion. In most of ship model experimental tanks in the world it is the usual practice for the electric power used for driving the model towing trucks to be obtained from secondary batteries. The secondary batteries were considered for many years past to be the unique equipment for obtaining constant voltage direct current. But they are not always satisfactory not only from the point of constant voltage but from the points of view of economy and handling. In the model experimental tank of the Ship Research Institute of the Department of Communications, Tokio, known as 'Teishinsho Tank', there have been installed two sets of secondary batteries and motor-generators for their charging. One of the autho-s, K. Minato, Director of the Ship Research Institute, has been searching for some ingeneous device of automatic voltage regulation, which may dispense with the use of secondary batteries. Among several methods of obtaining the constant voltage direct current source, that of applying an automatic voltage regulator using a grid-controlled ionization tube was considered to be most preferable for the purpose, provided that the existing Ward-Leonard system be used as it is. The regulator of this kind has already been developed in the Electrotechnical Laboratory of the Department of Communications since 1929,by one of the authors, M. Takahashi, Technical Expert of the Electrotechnical Laboratory. The problem of applying the above mentioned automatic voltage regulator for the Teishinsho Tank arose early in May of 1932,and in the next month it was taken up as the subject of research by co-operation between the Ship Research Institute and the Electrotechnical Laboratory. After exhaustive preliminary experiments and close investigation in 1932 and 1933,an inproved type of the automatic voltage regulator intended for the Teishinsho Tank was manufactured, and installed in March of 1934. The regulator was set to regulate automatically the generator terminal voltage of 50 KW. motor-generator (G_1), which had been primally used for charging secondary batteries. General connection diagram of electrical apparatus after the installation of the automatic voltage regulator is shown in Fig.5. This regulator has been actually working since April of 1934,and the performance is quite satisfactory for the purpose of daily experiments. It keeps the variation of the terminal voltage within 0.015% in the working condition as shown in Fig.12. And moreover, the total power consumption for the system of driving the model towing truck has been much reduced as shown in Fig.14. We are, however, not contented with the above. Soon after the installation of the first regulator, we further stepped on to manufacture the second regulator for experimental purpose, which is intended to be used as an automatic regulator for constant spced operation of the truck. General connection diagram of electrical apparatus after the installation of both of automatic voltage regulator and automatic regulator for constant speed operation is shown in Fig.15. In Fig.15,if the switch S is on to I the generator voltage of Ward-Leonard motor-generator (G_2) is automatically regulated so as to keep its terminal voltage constant ; and if the switch S is on to II the generator terminal voltage of Ward-Leonard motor-generator (G_2) is automatically regulated so as to keep the terminal volta
社団法人日本船舶海洋工学会の論文
1935-06-25

著者

湊一磨
造船統制会

船型試驗用電源に對する自動電壓調整器の應用

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