Island special power supply system
A special power supply and power supply system technology, applied in power electronic technology and its application fields, can solve the problems of unstable electric power, poor climbing and tracking ability, and inability to provide stable supply, and achieve the effect of ensuring stability and reducing diesel consumption.
Active Publication Date: 2018-04-20
WENZHOU UNIV
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Problems solved by technology
However, the climbing tracking ability of the diesel generator set is poor, and the energy supply cannot be supplied when the load suddenly increases. At the same time, the input terminal of the active power factor correction rectifier module has a large inductance, which also inhibits the instantaneous output capacity of electric energy. The power provided has shortcomings such as instability and quality that cannot meet the requirements; in addition, the geographical location of the island is special, and the large-scale use of diesel oil has a damaging effect on the environment and ecology, which also increases the cost and difficulty of transportation; renewable energy such as wind and light are ideal Clean energy, but it is time-sensitive and cannot be provided stably
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0024] The purpose of the present invention is to provide a power supply system that can provide high-quality, high-impact-resistant electric energy while reducing diesel consumption and prolonging the service life of batteries.
[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specifi...
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The invention discloses an island special power supply system. The system comprises an energy source, a monitoring and management module, a power conversion module, an energy storage module, a current control unit and a power converter. The output terminal of the energy source is connected to the input terminal of the power conversion module. The output terminal of the power conversion module is connected with the positive electrode of the energy storage module and the input terminal of the current control unit separately. The positive electrode of the energy storage module is also connected with the input terminal of the current control unit. The output terminal of the current control unit is connected with the positive electrode of the power converter. The positive electrode of the power converter is connected to the positive electrode input terminal of a load. The energy source includes a diesel generator set, a wind power generation system and a photovoltaic power generation system. The output terminal of the diesel generator set is connected to the input terminal of a PWM rectifier unit of the power converter. The power supply system provided by the invention can provide electric power with high quality and high impact resistance while reducing the diesel consumption and prolonging the service life of a storage battery.
Description
technical field [0001] The invention relates to the field of power electronics technology and its application, in particular to a sea island special power supply system. Background technique [0002] In island construction, some special equipment on the island needs to provide three-phase AC power with high reliability, high quality and high impact resistance. Since the island is far away from the mainland, it is difficult to set up a power grid connected to the mainland, so it is usually solved by building an island micro-grid. Island microgrids are usually power equipment with energy storage systems composed of wind, light, firewood, and storage. However, the climbing tracking ability of the diesel generator set is poor, and the energy supply cannot be supplied when the load suddenly increases. At the same time, the input terminal of the active power factor correction rectifier module has a large inductance, which also inhibits the instantaneous output capacity of electri...
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IPC IPC(8): H02J3/38H02J3/28
CPCH02J3/28H02J3/383H02J3/386Y02E10/56Y02E10/76
Inventor 戴瑜兴赵振兴阮秀凯蔡启博王环朱志亮
Owner WENZHOU UNIV