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1.河海大学可再生能源发电技术教育部工程研究中心,江苏省南京市 210098
2.国网安徽省电力有限公司,安徽省合肥市 230061
赵晋泉(1972—),男,通信作者,博士,教授,博士生导师,主要研究方向:电力系统优化运行、电压稳定与控制和电力市场等。E-mail:jqzhao2@tom.com
汤建军(1995—),男,硕士研究生,主要研究方向:电力系统电压稳定分析。E-mail:jjun_tang@163.com
吴 迪(1972—),男,硕士,高级工程师,主要研究方向:电力运行管理。E-mail:wud2734@ah.sgcc.com.cn
收稿日期:2019-10-19,
修回日期:2020-01-08,
网络出版日期:2020-05-11,
纸质出版日期:2020-11-25
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赵晋泉,汤建军,吴迪等.直流馈入受端电网暂态电压与频率稳定紧急协调控制策略[J].电力系统自动化,2020,44(22):45-53.
ZHAO Jinquan,TANG Jianjun,WU Di,et al.Emergency Coordination Control Strategy for Transient Voltage and Transient Frequency Stability in HVDC Infeed Receiving-end Power Grid[J].Automation of Electric Power Systems,2020,44(22):45-53.
赵晋泉,汤建军,吴迪等.直流馈入受端电网暂态电压与频率稳定紧急协调控制策略[J].电力系统自动化,2020,44(22):45-53. DOI: 10.7500/AEPS20191019002.
ZHAO Jinquan,TANG Jianjun,WU Di,et al.Emergency Coordination Control Strategy for Transient Voltage and Transient Frequency Stability in HVDC Infeed Receiving-end Power Grid[J].Automation of Electric Power Systems,2020,44(22):45-53. DOI: 10.7500/AEPS20191019002.
为应对多直流馈入受端电网直流闭锁故障导致的暂态电压和暂态频率稳定问题,提出一种综合考虑直流功率紧急提升、调相机紧急控制和切负荷的紧急协调控制策略。首先,采用了基于多二元表的暂态稳定裕度指标,分析了直流功率紧急提升和调相机紧急控制对受端电网暂态电压稳定的影响,提出了受端电网多控制手段紧急协调控制方案。其次,基于该控制方案,计及暂态电压和暂态频率稳定约束,以控制代价最小为目标,建立了多控制手段下受端电网紧急协调控制优化模型。然后,采用灵敏度法将模型线性化,考虑了直流功率紧急提升对暂态电压稳定的负面影响,并采用逐次线性规划方法求解。最后,通过华东电网实际案例结果验证了所提控制策略的有效性。
In order to deal with the transient voltage and transient frequency stability problems of the multi-infeed high-voltage direct current (HVDC) receiving-end power grid when HVDC lines are blocked
an emergency coordination control strategy considering HVDC power emergency lifting
synchronous condenser emergency control and load shedding is proposed. Firstly
the transient voltage and frequency stability margin index based on multiple two-element notations is adopted. The impact of HVDC power emergency lifting and synchronous condenser emergency control on the transient voltage stability of the receiving-end power grid is analyzed
and an emergency coordination control scheme with multiple control means is proposed. Secondly
based on the proposed scheme
an optimization model is established for the emergency coordination control of the receiving-end power grid with multiple control means
which considers both transient voltage and transient frequency stability constraints and aims at minimizing the control cost. Then
the sensitivity is used to linearize the model
where the negative impact of HVDC power emergency lifting on the transient voltage stability is considered. Moreover
the model is solved by the successive linear programming method. Finally
the results of a real example in East China power grid show that the proposed control strategy is effective.
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