Synchronverter-based emulation and control of HVDC transmission
Synchronverter-based emulation and control of HVDC transmission
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DOI：
10.1109/pesgm.2017.8274585
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发表时间：
2017-07
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影响因子：
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通讯作者：
Raouia Aouini;B. Marinescu;Khadija Ben Kilani;M. Elleuch
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文献类型：
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作者：
Raouia Aouini;B. Marinescu;Khadija Ben Kilani;M. Elleuch
本文提出了一种基于同步逆变器概念的高压直流（HVDC）输电新控制策略：发送端整流器控制模拟同步电机（SM），接收端逆变器模拟同步发电机（SG）。通过直流线路连接的两个转换器提供所谓的同步逆变器 HVDC (SHVDC)。首先分析了SHVDC的结构。结果表明，SHVDC 结构中包含的下垂和电压调节对于很好地定义 SHVDC 的行为是必要且充分的。 SG的标准参数不能直接用于该结构。为了满足通常的高压直流控制要求，提出了这些参数的具体整定方法。新的调整方法与标准矢量控制在链路相邻区域的本地性能和故障临界清除时间（CCT）方面进行了比较。测试网络为4机并联HVDC/AC输电系统。结果表明所提出的控制器对增强链路相邻 AC 区域的稳定性裕度的贡献。
This paper presents a new control strategy for High Voltage Direct Current (HVDC) transmission based on the synchronverter concept: the sending-end rectifier controls emulate a synchronous motor (SM), and the receiving end inverter emulates a synchronous generator (SG). The two converters connected with a DC line provide what is called a Synchronverter HVDC (SHVDC). The structure of the SHVDC is firstly analyzed. It is shown that the droop and voltage regulations included in the SHVDC structure are necessary and sufficient to well define the behavior of SHVDC. The standard parameters of the SG cannot be directly used for this structure. A specific tuning method of these parameters is proposed in order to satisfy the usual HVDC control requirements. The new tuning method is compared with the standard vector control in terms of local performances and fault critical clearing time (CCT) in the neighboring zone of the link. The test network is a 4 machine power system with parallel HVDC/AC transmission. The results indicate the contribution of the proposed controller to enhance the stability margin of the neighbour AC zone of the link.