Alternating-current and direct-current electrified ice melting test platform and test method
A test platform, AC and DC technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as difficulty in implementation
Inactive Publication Date: 2020-11-24
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology
[0005] The invention provides an AC / DC electrified ice-melting test platform and a test method, which are used to solve the technical problem that the electrified ice-melting test involves AC / DC superposition and isolation, and is difficult to implement
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[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0030] see figure 1 , the AC / DC electrified ice-melting test platform of the present invention comprises an induction voltage regulator 1, the primary side of the induction voltage regulator 1 is connected to the grid input (connected to 220V mains in this embodiment), and the secondary side of the induction voltage regulator 1 is connected to the grid input. The load motor 5 is connected, and the first DC blocking module 2, the analog resistor 3 and the second DC blocking module 4 are connected in series between the secondary side of the induction voltage regulator 1 and the load motor 5; the two sides of the analog resistor 3 are also connected in parallel There is a DC power supply access module 7 and a short-circuit module 6. In this embodiment,...
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The invention discloses an alternating-current and direct-current electrified ice melting test platform and a test method. The test platform comprises an induction voltage regulator, the primary sideof the induction voltage regulator is connected with power grid input, the secondary side of the induction voltage regulator is connected with a load motor, and a first blocking module, an analog resistor and a second blocking module are sequentially connected in series between the secondary side of the induction voltage regulator and the load motor; two sides of the analog resistor are respectively connected in parallel with a direct-current power supply access module and a short-circuit module; an alternating current loop is formed among the induction voltage regulator, the first blocking module, the analog resistor, the second blocking module and the load motor; a direct-current loop is formed among the direct-current power supply access module, the analog resistor and the short-circuitmodule; therefore, the alternating current flowing through the alternating current loop and / or the direct current in the direct current loop in the analog resistor generates heat to melt ice. The working condition of alternating current and direct current superposition during electrified ice melting can be truly simulated under laboratory conditions.
Description
technical field [0001] The invention relates to the technical field of grid ice melting, in particular to an AC / DC electrified ice melting test platform and a test method. Background technique [0002] With the development of economy and technology, electric energy has become an indispensable secondary energy source in people's production and life, bringing endless convenience to people's production and life. With the increasingly prominent environmental problems, the frequent occurrence of extreme weather has also brought great challenges to the stable and reliable operation of the power system. In particular, rain, snow and freezing disasters occur frequently in southern China, which has seriously affected the operation of the power grid. [0003] Current ice melting is currently the most direct and effective measure to deal with grid ice disasters. However, the existing ice-melting methods are all power-off ice-melting methods. On the one hand, the power outage of the l...
Claims
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 朱远李波谭艳军朱思国黄清军毛新果
Owner STATE GRID HUNAN ELECTRIC POWER