变压器式可控电抗器限流电感计算

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Abstract The harmonic characteristics are quite superior when CRT (controllable reactor of transformer type) operates in fixed-single-branch regulating mode. Matching an appropriate parameter for each current-limiting inductance is the key to implement the fixed-single-branch regulating mode. Based on the circuit equations expressed by the self and mutual inductances of CRT, the instantaneous expression of work winding current and the formula for calculating its fundamental RMS were derived. And then the definitions of regulating process and capacitance range were proposed. According to the regulating process of fixed-single-branch mode, an optimization model for calculating the current-limiting inductances was established following the principle of keeping continuous output power and minimum overlap among all the capacitance ranges, while the nonlinear equations for calculating the current-limiting inductances were also established on the basis of the ideal situation in literatures that the currents in different control windings are independently each other. Finally, an example was designed and solved by Matlab optimization tool. The results show that the parameters obtained in the ideal situation lead to a wide range of discontinuity to the output power, which are inadvisable; while the ones calculated by the proposed optimization model can implement the fixed-single-branch mode efficiently.

Key words： Controllable reactor of transformer type current-limiting inductance optimization model optimization toolbox

Received: 25 August 2015 Published: 08 February 2017

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TM472

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	Tian Mingxing
	Liu Yibin
	Yin Jianning
	Zhao Qianru

Cite this article:

Tian Mingxing,Liu Yibin,Yin Jianning等. Calculation of Current-Limiting Inductance of Controllable Reactor of Transformer Type[J]. Transactions of China Electrotechnical Society, 2017, 32(2): 144-152.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I2/144

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