a power module
A power module, basic power technology, applied in reactive power adjustment/elimination/compensation, reactive power compensation, etc., can solve the problem of heavy workload, complicated installation and maintenance of power modules, and inability to take into account the size of the whole machine and the capacity of the whole machine, etc. question
Active Publication Date: 2020-10-27
TBEA SUNOASIS +1
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Problems solved by technology
[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a power module to solve the problem that the size of the whole machine and the capacity of the whole machine cannot be balanced due to the small capacity of the existing single power module, and the installation and maintenance of the power module cumbersome, workload-intensive issues
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[0042] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. 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.
[0043] The following combination Figure 1-4 , the structure of the power module provided by the embodiment of the present invention will be described in detail.
[0044] The power module provided by the embodiment of the present invention includes a first basic power unit, a second basic power unit, a control device, and a power transmission device.
[0045] Such as figure 1 As shown, each basic power unit includes: a capacitor 1, a heat sink 2 and two IGBT3, and the two IGBT3 in each b...
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The invention provides a power module which comprises a first basic power unit, a second basic power unit, a control device and an electric energy transmission device. Each basic power unit comprises a capacitor, a radiator and two IGBTs respectively. The two IGBTs in each basic power unit are connected in series. The two IGBTs in the first basic power unit and the two IGBTs in the second basic power unit are connected in series or in parallel. The control device controls the on / off states of the IGBTs. The electric energy transmission device transmits the electric energy of the IGBTs to the capacitors of the basic power units. According to the technical scheme of the invention, two basic power units are connected in parallel or in series to be integrated inside the same power module. Therefore, under the same overall capacity, one half of the power module can be saved. Not only the dimension and the volume of a power cabinet can be reduced, but not only the capacity and the dimension of a whole machine are considered. The power density of the whole machine is improved, and the installation and maintenance workload of the power module can be reduced.
Description
technical field [0001] The invention relates to the technical field of reactive power compensation equipment, in particular to a power module. Background technique [0002] SVG (Static Var Generator, also known as high-voltage var compensator) has become a reactive power Main development directions in the field of power compensation technology. SVG generally consists of power cabinets, starter cabinets and control cabinets. Among them, the power cabinet can be divided into three phases, and the cabinet body of each phase power cabinet can accommodate multiple power modules, among which, the power module is the most important part of each phase power cabinet. The interior of the power cabinet is arranged horizontally or vertically. [0003] In a traditional power module, there is usually only one set of control device, power transmission device and IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), and each power module is connected in series. ...
Claims
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IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 苏浩史奔施辉田兴郭磊张洁琼
Owner TBEA SUNOASIS