Method for simulating corona resistance of plasma modified epoxy resin composite material
An epoxy resin and composite material technology, applied in design optimization/simulation, electrical digital data processing, instruments, etc., can solve the problems of unknown corona resistance characteristics, inability to evaluate insulation performance, etc., to make up for the defects of difficult to measure electric field. Effect
Pending Publication Date: 2022-05-31
XIAN UNIV OF TECH
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[0004] The object of the present invention is to provide the simulation method of the corona resistance characteristic of the epoxy resin composite material after plasma modification, solve the unknown corona resistance characteristic of the epoxy resin composite material after the plasma modification existing in the prior art, The problem that the insulation performance in environment-friendly gas cannot be evaluated
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[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] The invention provides a method for simulating the corona resistance characteristics of an epoxy resin composite material after plasma modification, which is characterized in that the method is specifically implemented according to the following steps:
[0036] Step 1, using the plasma jet modification combined with the nanoparticle filling modification method to prepare the epoxy resin composite material, and detect the chemical elements and groups on the surface of the epoxy resin composite material;
[0037] Both low temperature plasma and nanoparticle filling can improve the surface charge accumulation characteristics of epoxy resin, but the affinity between nanoparticles and epoxy resin is poor, and the time-effectiveness of plasma modification is short. Advantages: Using plasma to modify nanoparticles and then combining the modifie...
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The invention discloses a plasma modified epoxy resin composite material corona resistance characteristic simulation method, which comprises the following steps: preparing an epoxy resin composite material, and detecting chemical elements and groups on the surface of the epoxy resin composite material; establishing a hydrodynamic model, and calculating an electric field intensity waveform of corona discharge of the environment-friendly gas; establishing a chemical kinetic model, and calculating decomposition product components of corona discharge of the environment-friendly gas; according to the detected epoxy resin composite material group, establishing a molecular dynamics model of epoxy resin, and according to the calculated electric field intensity waveform and the calculated decomposition product component, establishing a reaction molecular dynamics model of the epoxy resin composite material under the action of the electric field and the decomposition product; the change of surface chemical groups of the epoxy resin composite material under the action of an electric field and decomposition product components is studied; the problems that in the prior art, the corona resistance of the plasma modified epoxy resin composite material is unknown, and the insulating property of the plasma modified epoxy resin composite material in environment-friendly gas cannot be evaluated are solved.
Description
technical field [0001] The invention belongs to the technical field of insulation monitoring and fault diagnosis of power equipment, and particularly relates to a method for simulating the corona resistance characteristics of epoxy resin composite materials after plasma modification. Background technique [0002] As the pace of global energy green and low-carbon transformation is further accelerated, my country will vigorously develop a green and low-carbon power industry under the guidance of the goal of "carbon peaking and carbon neutrality". Compared with AC transmission, HVDC transmission has the advantages of large transmission capacity, low loss, low cost and high stability, and has become the main development direction of future power grids. However, for DC transmission systems, under the action of a single-phase electric field, free charges are easily accumulated at the gas-solid interface and form surface charges, causing electric field distortion and inducing flash...
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IPC IPC(8): G06F30/28G06F113/26
CPCG06F30/28G06F2113/26Y02T90/00
Inventor 高青青张嘉伟徐藩田宁赵妮
Owner XIAN UNIV OF TECH