复合储能型保安电源系统控制策略与仿真
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摘要
为了实现重要负荷的安全可靠供电,并减少冲击性负荷对电网的影响,提出一种基于超级电容和蓄电池的保安电源系统。首先,给出保安电源系统的拓扑结构,并建立保安电源系统的数学模型;然后,重点研究了保安电源系统的系统协调控制策略。通过检测电网状态、负荷容量和复合储能的荷电状态,综合确定各个变换器的工作模式,并根据不同工作模式的控制目标,提出了直流变换器和电压源型换流器的控制策略。通过在Matlab中对保安电源系统几种典型工况仿真,验证了系统功能和控制策略。
To provide reliable power supply for important load and reduce the influence of impact load on grid,a power security supply system based on super capacitor and battery is proposed. Firstly,the topological structure of this system is presented,then its mathematical model is built. Secondly,the coordination control strategy for the system is studied in detail. Through detecting the status of grid,the load capacity,and the state of charge(SOC)of hybrid energy storage(HES),the operating modes of converters can be determined comprehensively. Moreover,the control strategies for direct current converters and voltage source converter(VSC)are put forward according to the control goals of different operating modes. Finally,several typical operating conditions of the novel system are simulated in Matlab and results verify its functions and control strategies.
To provide reliable power supply for important load and reduce the influence of impact load on grid,a power security supply system based on super capacitor and battery is proposed. Firstly,the topological structure of this system is presented,then its mathematical model is built. Secondly,the coordination control strategy for the system is studied in detail. Through detecting the status of grid,the load capacity,and the state of charge(SOC)of hybrid energy storage(HES),the operating modes of converters can be determined comprehensively. Moreover,the control strategies for direct current converters and voltage source converter(VSC)are put forward according to the control goals of different operating modes. Finally,several typical operating conditions of the novel system are simulated in Matlab and results verify its functions and control strategies.
引文
[1]赵建立,周雯娟,郑庆荣,等(Zhao Jianli,Zhou Wenjuan,Zheng Qingrong,et al).基于用户责任的重要电力用户用电安全风险评估(Electrical safety assessment for important power users based on user’s responsibility)[J].电力系统保护与控制(Power System Protection and Control),2015,43(23):71-77.
[2]毛承雄,王元超,王丹,等(Mao Chengxiong,Wang Yuanchao,Wang Dan,et al).面向重要负荷的可靠供电岛拓扑结构及应用(Topology and application of a high reliable power supply island for important loads)[J].高电压技术(High Voltage Engineering),2016,42(7):2037-2046.
[3]李蕊,李跃,苏剑,等(Li Rui,Li Yue,Su Jian,et al).配电网重要电力用户停电损失及应急策略(Power supply interruption cost of important power consumers in distribution network and its emergency management)[J].电网技术(Power System Technology),2011,35(10):170-176.
[4] GB/Z 29328—2012,重要电力用户供电电源及自备应急电源配置技术规范[S].
[5]王建学,高卫恒,别朝红(Wang Jianxue,Gao Weiheng,Bie Zhaohong).冲击负荷对电力系统可靠性影响的分析(Influence of shock loads on power system reliability)[J].中国电机工程学报(Proceedings of the CSEE),2011,31(10):59-65.
[6]高超,程浩忠,李宏仲,等(Gao Chao,Cheng Haozhong,Li Hongzhong,et al).大容量冲击负荷对地区电网暂态稳定性的影响(Influence of high-capacity impact loads on transient stability of regional power system)[J].电网技术(Power System Technology),2008,32(1):31-35.
[7]张国荣,陈夏冉(Zhang Guorong,Chen Xiaran).能源互联网未来发展综述(Future development of energy internet)[J].电力自动化设备(Electric Power Automation Equipment),2017,37(1):1-7.
[8]周任军,刘嫣然,余虎,等(Zhou Renjun,Liu Yanran,Yu Hu,et al).计及分类负荷模型及其需求响应的微网优化运行(Optimal operation of microgrid based on classified load model and demand-side response)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2018,30(11):89-94.
[9] Spyker R L,Nelms R M. Classical equivalent circuit parameters for a double-layer capacitor[J]. IEEE Trans on Aerospace and Electronic Systems,2000,36(3):829-836.
[10]陈禹,易灵芝,李济君,等(Chen Yu,Yi Lingzhi,Li Jijun,et al).燃料电池汽车用三输入直流变换器能量管理策略(Energy management strategy for fuel cell vehicle with three-input DC-DC converter)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2016,28(12):42-48.
[11] Salameh Z M,Casacca M A,Lynch W A. A mathematical model for lead-acid batteries[J]. IEEE Trans on Energy Conversion,1992,7(1):93-98.
[12]王亚光,王秋源,陆继明,等(Wang Yaguang,Wang Qiuyuan,Lu Jiming,et al).大容量液流电池系统数学模型与仿真(Mathematical model of LCFBS and simulation)[J].电力自动化设备(Electric Power Automation Equipment),2015,35(8):72-78.
[13]张旭辉,温旭辉,赵峰(Zhang Xuhui,Wen Xuhui,Zhao Feng).抵消恒功率负载负阻抗特性影响的双向Buck/Boost变换器控制策略(The control scheme counteracting negative impedance of constant power load for bi-directional Buck/Boost)[J].电工技术学报(Transactions of China Electrotechnical Society),2013,28(11):195-201,208.
[14]张坤,黎春湦,毛承雄,等(Zhang Kun,Li Chunsheng,Mao Chengxiong,et al).基于超级电容器—蓄电池复合储能的直驱风力发电系统的功率控制策略(Power control of directly-driven wind generation systems with battery/ultra-capacitor hybrid energy storage)[J].中国电机工程学报(Proceedings of the CSEE),2012,32(25):99-108.
[15]姚志垒,肖岚,张方华(Yao Zhilei,Xiao Lan,Zhang Fanghua).无阻尼LCL滤波并网逆变器的设计与实现(Design and implementation of LCL-filter-based grid-connected inverters without damping)[J].高电压技术(High Voltage Engineering),2013,39(5):1232-1237.
[16]田兵,毛承雄,陆继明,等(Tian Bin,Mao Chengxiong,Lu Jiming,et al).微网储能变换器并网/离网无缝切换策略仿真(Control strategy simulation of grid-connected/griddisconnected seamless transfer of energy storage converter in microgrid)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2014,26(11):1-6,27.
[17]王恒利,付立军,肖飞,等(Wang Hengli,Fu Lijun,Xiao Fei,et al).三相逆变器不平衡负载条件下双环控制策略(A double-loop control strategy for three-phase inverter with unbalanced load)[J].电网技术(Power System Technology),2013,37(2):398-404.
[18]吴凤江,孙秀冬,孙力,等(Wu Fengjiang,Sun Xiudong,Sun Li,et al).电网功率可控型太阳能电池-电网-蓄电池混合供电不间断逆变电源(Grid-power-controllable UPS powered by photovoltaic cell,grid and battery)[J].电力自动化设备(Electric Power Automation Equipment),2011,31(6):11-15.
[2]毛承雄,王元超,王丹,等(Mao Chengxiong,Wang Yuanchao,Wang Dan,et al).面向重要负荷的可靠供电岛拓扑结构及应用(Topology and application of a high reliable power supply island for important loads)[J].高电压技术(High Voltage Engineering),2016,42(7):2037-2046.
[3]李蕊,李跃,苏剑,等(Li Rui,Li Yue,Su Jian,et al).配电网重要电力用户停电损失及应急策略(Power supply interruption cost of important power consumers in distribution network and its emergency management)[J].电网技术(Power System Technology),2011,35(10):170-176.
[4] GB/Z 29328—2012,重要电力用户供电电源及自备应急电源配置技术规范[S].
[5]王建学,高卫恒,别朝红(Wang Jianxue,Gao Weiheng,Bie Zhaohong).冲击负荷对电力系统可靠性影响的分析(Influence of shock loads on power system reliability)[J].中国电机工程学报(Proceedings of the CSEE),2011,31(10):59-65.
[6]高超,程浩忠,李宏仲,等(Gao Chao,Cheng Haozhong,Li Hongzhong,et al).大容量冲击负荷对地区电网暂态稳定性的影响(Influence of high-capacity impact loads on transient stability of regional power system)[J].电网技术(Power System Technology),2008,32(1):31-35.
[7]张国荣,陈夏冉(Zhang Guorong,Chen Xiaran).能源互联网未来发展综述(Future development of energy internet)[J].电力自动化设备(Electric Power Automation Equipment),2017,37(1):1-7.
[8]周任军,刘嫣然,余虎,等(Zhou Renjun,Liu Yanran,Yu Hu,et al).计及分类负荷模型及其需求响应的微网优化运行(Optimal operation of microgrid based on classified load model and demand-side response)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2018,30(11):89-94.
[9] Spyker R L,Nelms R M. Classical equivalent circuit parameters for a double-layer capacitor[J]. IEEE Trans on Aerospace and Electronic Systems,2000,36(3):829-836.
[10]陈禹,易灵芝,李济君,等(Chen Yu,Yi Lingzhi,Li Jijun,et al).燃料电池汽车用三输入直流变换器能量管理策略(Energy management strategy for fuel cell vehicle with three-input DC-DC converter)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2016,28(12):42-48.
[11] Salameh Z M,Casacca M A,Lynch W A. A mathematical model for lead-acid batteries[J]. IEEE Trans on Energy Conversion,1992,7(1):93-98.
[12]王亚光,王秋源,陆继明,等(Wang Yaguang,Wang Qiuyuan,Lu Jiming,et al).大容量液流电池系统数学模型与仿真(Mathematical model of LCFBS and simulation)[J].电力自动化设备(Electric Power Automation Equipment),2015,35(8):72-78.
[13]张旭辉,温旭辉,赵峰(Zhang Xuhui,Wen Xuhui,Zhao Feng).抵消恒功率负载负阻抗特性影响的双向Buck/Boost变换器控制策略(The control scheme counteracting negative impedance of constant power load for bi-directional Buck/Boost)[J].电工技术学报(Transactions of China Electrotechnical Society),2013,28(11):195-201,208.
[14]张坤,黎春湦,毛承雄,等(Zhang Kun,Li Chunsheng,Mao Chengxiong,et al).基于超级电容器—蓄电池复合储能的直驱风力发电系统的功率控制策略(Power control of directly-driven wind generation systems with battery/ultra-capacitor hybrid energy storage)[J].中国电机工程学报(Proceedings of the CSEE),2012,32(25):99-108.
[15]姚志垒,肖岚,张方华(Yao Zhilei,Xiao Lan,Zhang Fanghua).无阻尼LCL滤波并网逆变器的设计与实现(Design and implementation of LCL-filter-based grid-connected inverters without damping)[J].高电压技术(High Voltage Engineering),2013,39(5):1232-1237.
[16]田兵,毛承雄,陆继明,等(Tian Bin,Mao Chengxiong,Lu Jiming,et al).微网储能变换器并网/离网无缝切换策略仿真(Control strategy simulation of grid-connected/griddisconnected seamless transfer of energy storage converter in microgrid)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2014,26(11):1-6,27.
[17]王恒利,付立军,肖飞,等(Wang Hengli,Fu Lijun,Xiao Fei,et al).三相逆变器不平衡负载条件下双环控制策略(A double-loop control strategy for three-phase inverter with unbalanced load)[J].电网技术(Power System Technology),2013,37(2):398-404.
[18]吴凤江,孙秀冬,孙力,等(Wu Fengjiang,Sun Xiudong,Sun Li,et al).电网功率可控型太阳能电池-电网-蓄电池混合供电不间断逆变电源(Grid-power-controllable UPS powered by photovoltaic cell,grid and battery)[J].电力自动化设备(Electric Power Automation Equipment),2011,31(6):11-15.