Resonance elimination device and resonance elimination method for resonance overvoltage in power system
A resonant overvoltage and power system technology, applied to electrical components, electrical equipment components, and AC networks to reduce harmonics/ripples, etc., can solve the problem of not being able to ensure the safety of the power system in real time and the safety of the power system , lack of harmonic elimination equipment and other problems, to achieve the effect of avoiding losses, improving the ability of fire protection, and improving the ability of harmonic elimination
Pending Publication Date: 2022-06-21
AKSU POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER +3
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Problems solved by technology
Existing resonance elimination devices have limited ability to eliminate resonance, and cannot ensure the safety of the power system in the face of different resonance conditions
Moreover, due to resonance during use, the resonance elimination device may be damaged. When it is replaced after damage, there is a lack of resonance elimination equipment in the power system, which cannot ensure the safety of the power system in real time.
Method used
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[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0033] see Figure 1-6 As shown, a harmonic elimination device for resonance overvoltage in a power system includes two harmonic elimination bodies 7, and the harmonic elimination body 7 is installed on a positioning device. The top of each end is connected with a bearing seat 6 for installing the harmonic eliminator body 7 , a mounting sleeve 3 for rotation is installed in the middle of the cross bar 1 , and a fixed seat 4 is installed at the bottom end of the mounting sleeve 3 for rotation.
[0034] As...
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The invention relates to the field of resonance overvoltage treatment, and particularly discloses a resonance elimination device and a resonance elimination method for resonance overvoltage in an electric power system, the resonance elimination device comprises two resonance elimination device bodies, the resonance elimination device bodies are installed on a positioning device, the positioning device comprises a cross rod, and the cross rod is installed on the cross rod. The tops of the two ends of the transverse rod are connected with bearing bases used for mounting the resonance eliminator body, a mounting sleeve used for rotation is mounted in the middle of the transverse rod, and a fixing base is rotationally mounted at the bottom end of the mounting sleeve. The resistor and the resonance eliminator are matched for use, so that the resonance elimination capability can be improved, and the resonance eliminator is not easy to damage in use. The resistor can be independently used, it is guaranteed that the resonance eliminator can be independently carried out in the follow-up overhaul and maintenance process, normal operation of a power system is not affected when the resistor is replaced after being damaged, and meanwhile the safety performance of the power system is guaranteed.
Description
technical field [0001] The invention relates to a harmonic elimination device, in particular to a harmonic elimination device and a harmonic elimination method for resonance overvoltage in a power system, and belongs to the field of resonance overvoltage management. Background technique [0002] Ferromagnetic resonance is a form of self-excited oscillation in power systems, which is a continuous, high-amplitude resonance overvoltage phenomenon caused by the saturation of ferromagnetic inductances such as transformers and voltage transformers. The inductance of the iron core in the resonant circuit is nonlinear, and the inductance tends to be stable with the increase of the current and the saturation of the iron core; the ferromagnetic resonance requires certain excitation conditions, so that the voltage and current amplitudes are transferred from the normal working state to the resonant state. For example, the power supply voltage is temporarily increased, the system is subj...
Claims
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Login to View More IPC IPC(8): H02J3/01H05K7/20A62C3/16
CPCH02J3/01H05K7/20136A62C3/16
Inventor 吴治勇苏峰王晓斌张大宝李志强杨计强艾则孜·巴克张康林小亮张传能张彬叶家鑫孙永振刘俊吴伟丽李磊牛俊杰
Owner AKSU POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER