基于预设时间一致性的虚拟同步发电机二次电压控制
TM761; 针对孤岛微电网下虚拟同步发电机(VSG)一次控制存在的无功功率难以按照容量分配与电压偏差问题,提出一种基于预设时间一致性的分布式二次电压优化控制策略.该策略包含基于时基发生器的预设时间一致性算法以及与各分布式电源逆变器本体算法相结合的状态控制器,通过时基发生器将收敛时间提前确定,根据一致性算法对电压和功率输出偏差进行补偿,使逆变器仅依靠相邻单元之间的通讯即可实现无功功率分配与电压二次控制的目标.该策略无需考虑初始容量与协议参数的影响,保证了电压的定时快速恢复和无功功率的分配,同时收敛时间不受微电网容量扩展的影响,增加了微电网的灵活性和自由度.最后,通过仿真和实验验证了所提控制策略...
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| Published in | 电机与控制学报 Vol. 28; no. 10; pp. 166 - 192 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
河南理工大学电气工程及其自动化学院,河南焦作 454003
01.10.2024
河南省智能装备直驱技术与控制国际联合实验室,河南焦作 454003%国网河南省电力公司焦作供电公司,河南焦作 454003%河南理工大学电气工程及其自动化学院,河南焦作 454003 |
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| Online Access | Get full text |
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| Abstract | TM761; 针对孤岛微电网下虚拟同步发电机(VSG)一次控制存在的无功功率难以按照容量分配与电压偏差问题,提出一种基于预设时间一致性的分布式二次电压优化控制策略.该策略包含基于时基发生器的预设时间一致性算法以及与各分布式电源逆变器本体算法相结合的状态控制器,通过时基发生器将收敛时间提前确定,根据一致性算法对电压和功率输出偏差进行补偿,使逆变器仅依靠相邻单元之间的通讯即可实现无功功率分配与电压二次控制的目标.该策略无需考虑初始容量与协议参数的影响,保证了电压的定时快速恢复和无功功率的分配,同时收敛时间不受微电网容量扩展的影响,增加了微电网的灵活性和自由度.最后,通过仿真和实验验证了所提控制策略的可行性和有效性. |
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| AbstractList | TM761; 针对孤岛微电网下虚拟同步发电机(VSG)一次控制存在的无功功率难以按照容量分配与电压偏差问题,提出一种基于预设时间一致性的分布式二次电压优化控制策略.该策略包含基于时基发生器的预设时间一致性算法以及与各分布式电源逆变器本体算法相结合的状态控制器,通过时基发生器将收敛时间提前确定,根据一致性算法对电压和功率输出偏差进行补偿,使逆变器仅依靠相邻单元之间的通讯即可实现无功功率分配与电压二次控制的目标.该策略无需考虑初始容量与协议参数的影响,保证了电压的定时快速恢复和无功功率的分配,同时收敛时间不受微电网容量扩展的影响,增加了微电网的灵活性和自由度.最后,通过仿真和实验验证了所提控制策略的可行性和有效性. |
| Abstract_FL | Aiming at the problem of power distribution and voltage deviation in primary control of virtual synchronous generator(VSG)in isolated island microgrid,a distributed secondary voltage optimal control strategy based on preset time consistency was proposed.The strategy includes the preset time consistency algorithm based on the time base generator and the state controller combined with the algorithm of each distributed power inverter body,so that the inverter can realize the target of reactive power distribution and voltage secondary control only by relying on the communication of adjacent units.This strategy does not need to consider the impact of initial capacity and protocol parameters,which ensures the timing and rapid voltage recovery.Meanwhile,the convergence time is not affected by the capacity expansion of the microgrid,which increases the flexibility and freedom of the microgrid.Finally,feasibility and effective-ness of the proposed control strategy are verified by simulation and experiment. |
| Author | 王浩 李斌 龚祥祥 胡丹丹 曾志辉 |
| AuthorAffiliation | 河南理工大学电气工程及其自动化学院,河南焦作 454003;河南省智能装备直驱技术与控制国际联合实验室,河南焦作 454003%国网河南省电力公司焦作供电公司,河南焦作 454003%河南理工大学电气工程及其自动化学院,河南焦作 454003 |
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| Author_FL | LI Bin ZENG Zhihui WANG Hao GONG Xiangxiang HU Dandan |
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| Keywords | 预设时间一致性 时基发生器 二次电压控制 time base generator secondary voltage control voltage timing quick recovery virtual synchronous generator 电压定时快速恢复 孤岛微电网 preset time consistency 虚拟同步发电机 islanded microgrid |
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| Title | 基于预设时间一致性的虚拟同步发电机二次电压控制 |
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