基于定量反馈理论的电压源换流器高压直流输电系统鲁棒控制器

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Abstract PI controllers are still the mainstream in VSC-HVDC system. However, PI controllers show the weak performance when suffering from the uncertainty in the system. On the basis of the traditional vector control strategy, this paper combines the quantitative feedback theory (QFT) to propose a new robust control strategy. This strategy can consider the phase information, intuitively weigh controller complexity and performance index in the design. It is easy to design and is convenient for on-site adjustment and operation. Under different operating conditions, simulations on control system are conducted using PSCAD software. The performance of the system with QFT controllers and the same system with PI controllers is compared. The results show that the proposed controllers have good robustness and dynamics.

Key words： Voltage source converter-high voltage direct current robust control engineering practicability quantitative feedback theory

Received: 09 September 2014 Published: 02 December 2016

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TM72

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	Qian Tiantian
	Miao Shihong
	Ran Xiaohong
	Wu Yingjie

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Qian Tiantian,Miao Shihong,Ran Xiaohong等. Robust Controller of Voltage Source Converter-High Voltage Direct Current System Based on the Theory of Quantitative Feedback Theory[J]. Transactions of China Electrotechnical Society, 2016, 31(22): 213-222.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I22/213

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