Study on Eliminating Closing Resistor of Circuit Breaker by Using Controllable Surge Arrester in UHV System

Bin, Han; Chen, Weijiang; Chen, Xiujuan; Ban, Liangeng; Xiang, Zhengrong

doi:10.1109/powercon.2018.8602093

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…For the overvoltage caused by the three-phase simultaneous breaking operation, the phase-controlled switching strategy based on fast vacuum switch is proposed in [14], which uses the fast vacuum switch and phase-controlled switching technology, which is effective for the breaking overvoltage. In UHV power systems, J. L. He and B. Han proposed the closing resistors for breakers to suppress the switching overvoltage in [15][16], besides, the different arresters, like controllable surge arrester (CSA), was uased to eliminate the closing resistor of circuit breakers. But their shortcomings make it a long-standing goal to eliminate closing resistors.…”

Section: Introductionmentioning

confidence: 99%

Energy Storage System Control Strategy for Restraining Overvoltage Caused by Switching Non-Load Power Transmission Lines

Yang¹,

Yu²,

Li³

et al. 2021

IEEE Access

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During the switching operation of the non-load power transmission lines, the undisired switching overvoltage issue is inevitable, causing grid voltage oscillations, waveform distortion and other phenomena at the end of the non-load power transmission lines, and even lead to the insulation breakdown, all above phenomena probably make the power transmission failure. To avoid the above harmful cases, the formation mechanism of the undisired switching overvoltage issue caused by switching non-load power transmission lines is first analyzed in detail. Based on this mechanism analysis, the energy storage system (ESS) based overvoltage suppression method and corresponding ESS voltage command synthesis algorithm are developed. The method can quickly and effectively restrain the voltage change rate and reduce the voltage difference between the initial value and the steady state value of the power transmission lines, so that the line voltage during the switching operation can be kept within the safety limit range. Finally, a simulation model was built by using MATLAB/Simulink software, and the simulation results verified the effectiveness of the proposed overvoltage suppression strategy. INDEX TERMS switching overvoltage, energy storage system (ESS), non-load power transmission lines, voltage command synthesis algorithm.

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Section: Introductionmentioning

confidence: 99%

Energy Storage System Control Strategy for Restraining Overvoltage Caused by Switching Non-Load Power Transmission Lines

Yang¹,

Yu²,

Li³

et al. 2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…To limit overvoltage during the switching and reclosing processes, the controllable arrester achieves dynamic control of the voltampere characteristics through switching on-off. Generally, the SCMOA possesses the major advantages of small size, low weight, low cost, and high reliability [2]. The body of an SCMOA consists of five sections, as shown in Figure 1.…”

mentioning

confidence: 99%

“…But, as the controllable ratio increases, the fixed element will absorb more energy under overvoltage while the energy withstand capacity decreases accordingly. It is necessary to ensure that the energy absorbed by the arrester is within its capacity [2].…”

mentioning

confidence: 99%