Excitation Voltage Control for Emergency Frequency Regulation of Island Power Systems With Voltage-Dependent Loads

被引：22

作者：

Cui, Ting ^{[1
]}

Lin, Wei ^{[2
]}

Sun, Yuanzhang ^{[1
]}

Xu, Jian ^{[1
]}

Zhang, Huakun ^{[1
]}

机构：

[1] Wuhan Univ, Sch Elect Engn, Wuhan 430072, Peoples R China

[2] Case Western Reserve Univ, Dept Elect Engn & Comp Sci, Cleveland, OH 44106 USA

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2016年 / 31卷 / 02期

基金：

美国国家科学基金会;

关键词：

Aluminum electrolysis; excitation voltage control; frequency control; island power systems; output regulation; voltage-dependent loads; OUTPUT REGULATION; CONTROL SCHEME; DEMAND; WIND; STORAGE;

D O I：

10.1109/TPWRS.2015.2415556

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a generator excitation voltage control scheme for emergency frequency regulation of island power systems with voltage-dependent loads. It is able to regulate the load voltages and their power demand to maintain stable frequency when the systems have no active power reserves. Taking an actual island power system with aluminum electrolysis loads as an example, a frequency and excitation voltage control model for the actual island power system is established. Then, by applying the output regulation theory, feedback control signals with the frequency deviations and the power imbalances are used to obtain a practical feasible control scheme whose structure is similar to that of primary and secondary frequency control. Furthermore, by taking into account the constraints of generator voltage controls and load bus voltages, two useful conditions are found to limit the power imbalances. Our control strategy can maintain the frequency and voltages in permitted ranges. Both the WSCC 9-bus system and the actual island power system are used to validate the effectiveness of the proposed scheme.

引用

页码：1204 / 1217

页数：14

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