基于D-STATCOM的煤矿供电系统功率平衡控制方法
发布时间:2018-10-08 15:44
【摘要】:为了解决煤矿供电系统三相不对称运行问题,提出了一种基于D-STATCOM瞬时功率平衡补偿的控制策略。给出了D-STATCOM系统接线图,分析了电网功率不对称对D-STATCOM控制特性的影响。提出了一种单相P-Q功率解耦控制方法,实现电网有功功率和无功功率的独立控制。在此基础上提出了一种零序能量转换为有功功率补偿的机制,给出了一种三相功率平衡的控制方法。Matlab/Simulink仿真结果表明,电网功率不对称运行时,D-STATCOM不但能够独立控制无功功率功率,还可以平衡三相有功电流。
[Abstract]:In order to solve the problem of three-phase asymmetrical operation of power supply system in coal mine, a control strategy based on D-STATCOM instantaneous power balance compensation is proposed. The connection diagram of D-STATCOM system is given, and the influence of power asymmetry on the control characteristics of D-STATCOM is analyzed. A single phase P-Q power decoupling control method is proposed to realize the independent control of active and reactive power. On this basis, a zero-sequence energy conversion mechanism to active power compensation is proposed, and a three-phase power balance control method is presented. The simulation results show that D-STATCOM can not only control reactive power independently when power is asymmetrical. It can also balance the three-phase active current.
【作者单位】: 中国能源建设集团天津电力设计院有限公司;河北工业大学电磁场与电器可靠性省部共建重点实验室;国网河北省电力公司保定供电分公司;
【基金】:河北省高等学校创新团队领军人才培育计划资助项目(LJRC003)
【分类号】:TD61
本文编号:2257328
[Abstract]:In order to solve the problem of three-phase asymmetrical operation of power supply system in coal mine, a control strategy based on D-STATCOM instantaneous power balance compensation is proposed. The connection diagram of D-STATCOM system is given, and the influence of power asymmetry on the control characteristics of D-STATCOM is analyzed. A single phase P-Q power decoupling control method is proposed to realize the independent control of active and reactive power. On this basis, a zero-sequence energy conversion mechanism to active power compensation is proposed, and a three-phase power balance control method is presented. The simulation results show that D-STATCOM can not only control reactive power independently when power is asymmetrical. It can also balance the three-phase active current.
【作者单位】: 中国能源建设集团天津电力设计院有限公司;河北工业大学电磁场与电器可靠性省部共建重点实验室;国网河北省电力公司保定供电分公司;
【基金】:河北省高等学校创新团队领军人才培育计划资助项目(LJRC003)
【分类号】:TD61
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