In order to improve the voltage quality of rural power distribution network, the series capacitor in distribution lines is proposed. The principle of series capacitor compensation technology to improve the quality of ...In order to improve the voltage quality of rural power distribution network, the series capacitor in distribution lines is proposed. The principle of series capacitor compensation technology to improve the quality of rural power distribution lines voltage is analyzed. The real rural power distribution network simulation model is established by Power System Power System Analysis Software Package (PSASP). Simulation analysis the effect of series capacitor compensation technology to improve the voltage quality of rural power distribution network, The simulation results show that the series capacitor compensation can effectively improve the voltage quality and reduce network losses and improve the transmission capacity of rural power distribution network.展开更多
提出一种可用于直流电容取能式串联电能质量调节器(series power quality regulator,SPQR)的阶段式补偿控制策略。该补偿策略分为稳定运行、超限运行及恢复运行3个阶段,提出针对各阶段分别采用完全补偿、最小能量补偿及最大能量补偿策...提出一种可用于直流电容取能式串联电能质量调节器(series power quality regulator,SPQR)的阶段式补偿控制策略。该补偿策略分为稳定运行、超限运行及恢复运行3个阶段,提出针对各阶段分别采用完全补偿、最小能量补偿及最大能量补偿策略。采用负荷电压及滤波电容电流双闭环控制策略对各阶段进行控制,并对稳定运行阶段增加了直流电容电压调整控制。为保证各阶段切换时的稳定,提出综合利用直流电容电压及系统电压幅值作为判据的切换控制策略。利用EMTDC/PSCAD对所提出的补偿控制策略进行仿真验证,仿真结果表明5:阶段式补偿控制策略能够补偿系统的稳态及暂态电压扰动,并能够保证装置的持续在线运行。展开更多
统一电能质量调节器(unified power quality conditioner,UPQC)已成为改进配电系统(或微电网)电能质量(power quality,PQ)最具吸引力的措施,成为国内外学者研究的热点。在拓扑结构和补偿量一定的情况下,UPQC的性能主要取决于控制策略。...统一电能质量调节器(unified power quality conditioner,UPQC)已成为改进配电系统(或微电网)电能质量(power quality,PQ)最具吸引力的措施,成为国内外学者研究的热点。在拓扑结构和补偿量一定的情况下,UPQC的性能主要取决于控制策略。该文综述了国内外UPQC各种的线性控制、非线性及智能控制策略研究,指出目前UPQC各种控制策略的优点与不足,提出克服目前控制策略不足的无源混合控制策略和多种控制策略融合的思想,供UPQC控制策略研究者参考。展开更多
文摘In order to improve the voltage quality of rural power distribution network, the series capacitor in distribution lines is proposed. The principle of series capacitor compensation technology to improve the quality of rural power distribution lines voltage is analyzed. The real rural power distribution network simulation model is established by Power System Power System Analysis Software Package (PSASP). Simulation analysis the effect of series capacitor compensation technology to improve the voltage quality of rural power distribution network, The simulation results show that the series capacitor compensation can effectively improve the voltage quality and reduce network losses and improve the transmission capacity of rural power distribution network.
文摘提出一种可用于直流电容取能式串联电能质量调节器(series power quality regulator,SPQR)的阶段式补偿控制策略。该补偿策略分为稳定运行、超限运行及恢复运行3个阶段,提出针对各阶段分别采用完全补偿、最小能量补偿及最大能量补偿策略。采用负荷电压及滤波电容电流双闭环控制策略对各阶段进行控制,并对稳定运行阶段增加了直流电容电压调整控制。为保证各阶段切换时的稳定,提出综合利用直流电容电压及系统电压幅值作为判据的切换控制策略。利用EMTDC/PSCAD对所提出的补偿控制策略进行仿真验证,仿真结果表明5:阶段式补偿控制策略能够补偿系统的稳态及暂态电压扰动,并能够保证装置的持续在线运行。
文摘统一电能质量调节器(unified power quality conditioner,UPQC)已成为改进配电系统(或微电网)电能质量(power quality,PQ)最具吸引力的措施,成为国内外学者研究的热点。在拓扑结构和补偿量一定的情况下,UPQC的性能主要取决于控制策略。该文综述了国内外UPQC各种的线性控制、非线性及智能控制策略研究,指出目前UPQC各种控制策略的优点与不足,提出克服目前控制策略不足的无源混合控制策略和多种控制策略融合的思想,供UPQC控制策略研究者参考。