Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance

doi:10.16182/j.issn1004731x.joss.19-0505

Abstract

Abstract: To reduce the active power fluctuation of the isolated AC-DC matrix converter (IAMC) under the input unbalance and to suppress the resonance of the LC filter, a deadbeat direct power control strategy based on active damping is proposed. The strategy uses the grid-side current and its delay component to calculate the IAMC input side filter capacitor voltage, which eliminates the high-precision voltage sensor of traditional active damping control, reduces the hardware cost, without the rotation coordinate transformation and phase-locked loops, so the calculation cost is small. The simulation results show that the proposed control strategy can effectively suppress the current harmonics at the grid side, reduce the reactive power DC component of the system, stabilize the active power output of the system, and has good dynamic performance under the input voltage unbalanced condition.

Key words: input unbalance, isolated AC-DC Matrix Converter, active damping control, deadbeat direct power control

CLC Number:

TM46
TP391

Deng Wenlang, Li Yong, Pan Hongbin. Research on Control Strategy of Isolated AC-DC Matrix Converter under Input Unbalance[J]. Journal of System Simulation, 2021, 33(7): 1729-1738.

References

[1] 王辉, 粟梅, 孙尧, 等. 应用于V2G的AC/DC矩阵变换器[J]. 中国电机工程学报, 2013, 33(9): 34-41.
Wang Hui, Su Mei, Sun Yao, et al.AC/DC Matrix Converter Applied to V2G[J]. Proceedings of the CSEE, 2013, 33(9): 34-41.
[2] 闫朝阳, 张微, 张坤,等.微网储能用高频链矩阵整流器的SPWM控制[J]. 电力电子技术, 2010, 44(6): 75-77.
Yan Zhaoyang, Zhang Wei, Zhang Kun, et al.SPWM Control of High Frequency Link Matrix Rectifier for Micro Grid Energy Storage[J]. Power Electronics, 2010, 44(6): 75-77.
[3] 邓文浪, 蒋卫龙, 郭有贵, 等. 基于精简矩阵变换器的串联多端海上风电HVDC系统协调控制[J]. 电网技术, 2014, 38(5): 1143-1149.
Deng Wenlang, Jiang Weilong, Guo Yougui, et al.A Coordinated Control of Series Multi-terminal Offshore Wind Power Generation-HVDC System Based on Reduced Matrix Converter[J]. Power System Technology, 2014, 38(5): 1143-1149.
[4] Ratanapanachote S, Han J C, Enjeti P N.A Digitally Controlled Switch Mode Power Supply Based on Matrix Converter[J]. IEEE Transactions on Power Electronics (S0885-8993), 2006, 21(1): 124-130.
[5] 王培强, 葛红娟, 张绍. 输入不对称条件下矩阵变换器调制策略的实现[J]. 电力电子技术, 2007, 41(4): 24-27.
Wang Peiqiang, Ge Hongjuan, Zhang Shao.Realization of Matrix Converter Modulation Strategy with Input Asymmetry[J]. Power Electronics, 2007, 41(4): 24-27.
[6] 陈希有, 陈学允, 韦奇. 改进矩阵变换器在非对称输入情况下的空间矢量调制策略[J]. 电工技术学报, 2000, 15(2): 78-82.
Chen Xiyou, Chen Xueyun, Wei Qi.The Improvement of Space Vector Modulation Strategy for Matrix Converter Under Unbalanced Input Voltages[J]. Transactions of China Electrotechnical Society, 2000, 15(2): 78-82.
[7] 佘宏武, 林桦, 王兴伟, 等. 矩阵变换器在非正常输入电压下的控制策略[J]. 中国电机工程学报, 2009, 29(33): 28-33.
She Hongwu, Lin Hua, Wang Xingwei, et al.Matrix Converter Control Strategy Under Abnormal Input Voltage[J]. Proceedings of the CSEE, 2009, 29(33): 28-33.
[8] 易灵芝, 李志勇, 朱建林, 等. 非平衡时矩阵变换器动态调制策略的仿真实现[J]. 系统仿真学报, 2004, 16(9): 2017-2020.
Yi Lingzhi, Li Zhiyong, Zhu Jianlin, et al.Simulation Implementation of Dynamic Modulation Strategy for Matrix Converter in Unbalanced Time[J]. Journal of System Simulation, 2004, 16(9): 2017-2020.
[9] Wang X, Lin H, She H, et al.Research on Matrix Converter Control Strategy Under Abnormal Input Voltages[C]//2010 36th Annual Conference on IEEE Industrial Electronics Society. Glendale, AZ: IEEE, 2010: 680-685.
[10] Monteiro J, Silva J F, Pinto S F, et al.Matrix Converter based Unified Power-Flow Controllers: Advanced Direct Power Control Method[J]. IEEE Transactions on Power Delivery (S0885-8977), 2011, 26(1): 420-430.
[11] Olloqui A, Elizondo J L, Rivera M, et al.Indirect Power Control of a Dfig Using Model-based Predictive Rotor Current Control with an Indirect Matrix Converter[C]// 2015 IEEE International Conference on Industrial Technology. Piscataway, NJ: IEEE, 2015: 2275-2280.
[12] Hamouda M, Blanchette H F, Al-Haddad K.Unity Power Factor Operation of Indirect Matrix Converter Tied to Unbalanced Grid[J]. IEEE Transactions on Power Electronics (S0885-8993), 2016, 31(2): 1095-1107.
[13] Nguyen T L, Nguyen T D, Lee H H.Resonant Compensators to Suppress Input Current Harmonics for AC/DC Matrix Converters Under Unbalanced Input Voltages[C]//2017 43rd Annual Conference of the IEEE Industrial Electronics Society. Piscataway, NJ: IEEE, 2017: 7354-7359.
[14] Kazmierkowski M P, Jasinski M, Wrona G.DSP-Based Control of Grid-Connected Power Converters Operating Under Grid Distortions[J]. IEEE Transactions on Industrial Informatics (S1551-3203), 2011, 7(2): 204-211.
[15] Suh Y, Lipo T A.Modeling and Analysis of Instantaneous Active and Reactive Power for PWM AC/DC Converter Under Generalized Unbalanced Network[J]. IEEE Transactions on Power Delivery (S0885-8977), 2006, 21(3): 1530-1540.
[16] Akagi H, Kanazawa Y, Nabae A.Instantaneous Reactive Power Compensators Comprising Switching Devices Without Energy Storage Components[J]. IEEE Transactions on Industry Applications (S0093-9994), 1984, 20(3): 625-630.
[17] Biricik S, Redif S, Özerdem Ö C, et al.Real-time Control of Shunt Active Power Filter Under Distorted Grid Voltage and Unbalanced Load Condition Using Self-tuning Filter[J]. IET Power Electronics (S1755-4535), 2014, 7(7): 1895-1905.
[18] Lei J, Zhou B, Qin X, et al.Active Damping Control Strategy of Matrix Converter Via Modifying Input Reference Currents[J]. IEEE Transactions on Power Electronics (S0885-8993), 2014, 30(9): 5260-5271.
[19] Liu F, Wu B, Zargari N R, et al.An Active Damping Method Using Inductor-current Feedback Control for High-Power PWM Current-Source Rectifier[J]. IEEE Transactions on Power Electronics (S0885-8993), 2011, 26(9): 2580-2587.
[20] Cortés P, Rodríguez J, Antoniewicz P, et al.Direct Power Control of an AFE Using Predictive Control[J]. IEEE Transactions on Power Electronics (S0885-8993), 2008, 23(5): 2516-2523.
[21] Kukrer O.Discrete-time Current Control of Voltage-fed Three-phase PWM Inverters[J]. IEEE Transactions on Power Electronics (S0885-8993), 1996, 11(2): 260-269.