Voltage commutation method, voltage commutation device, electronic equipment and readable storage medium
A technology of voltage switching and voltage, which is applied in the direction of reducing the asymmetry of the multi-phase network and eliminating/reducing the asymmetry of the multi-phase network. Degree, the effect of reducing the on-state loss
Active Publication Date: 2019-11-08
北京同时开关技术有限公司
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Problems solved by technology
The zero-sequence current will cause the loss of the neutral wire, and even burn the neutral wire when the zero-sequence current is too heavy, causing a fire
[0003] At present, in order to avoid the overload of the power supply voltage, phase commutation will be carried out during the power supply process to avoid the problem that the single-phase voltage power supply is overloaded, or the overload time is too long and the arc is generated
In the existing process of voltage commutation, in order to reduce or eliminate the arc generated in the current, most voltage commutation methods are to offset the arc by setting electronic devices (such as resistors, capacitors, triodes, etc.), but Setting up electronic devices can easily cause power loss and affect the accuracy and speed of voltage commutation
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[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art withou...
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The invention provides a voltage commutation method, a voltage commutation device, electronic equipment and a readable storage medium. When it is determined that switching from a first phase voltage to a second phase voltage is needed, the method includes steps of determining a commutation time point of switching from the first phase voltage to the second phase voltage based on the phase of the first phase voltage and the phase of the second phase voltage; obtaining a first switching delay time for voltage switching of the first phase voltage and a second switching delay time for voltage switching of the second phase voltage; and based on the commutation time point and the first switching delay time, controlling the first phase voltage to start voltage switching, and controlling the secondphase voltage to start voltage switching based on the commutation time point and the second switching delay time so as to complete switching from the first phase voltage to the second phase voltage at the time indicated by the commutation time point.
Description
technical field [0001] The present application relates to the technical field of voltage commutation, in particular to a voltage commutation method, a commutation device, electronic equipment and a readable storage medium. Background technique [0002] At present, there is a phenomenon of voltage imbalance in the power system. In the power design of some communities, the problem of voltage load balance is rarely considered. Therefore, if the load of the power supply voltage is too heavy, it will cause light or heavy zero sequence current. The zero-sequence current will cause the loss of the neutral wire, and even burn the neutral wire when the zero-sequence current is too heavy, causing a fire. [0003] At present, in order to avoid the overload of the power supply voltage, phase commutation is performed during the power supply process, so as to avoid the problem that the single-phase voltage power supply is overloaded, or the overload time is too long and the arc is genera...
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IPC IPC(8): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 王笋岳桂安白玉楼褚海东
Owner 北京同时开关技术有限公司