高比例可再生能源未来电网的源网协调一体化规划基础理论与关键技术研究
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项目结题报告(全文)
1.Secondary Voltage Control Strategy of Large Scale Renewable Energy Integrated Power Grid Based on RBF
- SHANGQIANG LI;YING QIAO;ZONGXIANG LU;LINLIN WU;MAN XU;
- 0年
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- 期
- 期刊
2.Multistage fuzzy-robust transmission network expansion planning under uncertainties
- 张立波;周勤勇;高骞;程浩忠;张沈习;
- 0年
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- 期
- 期刊
3.Bi-level Coordinated Flexible Planning Considering the Uncertainty of Wind Power Construction
- Hao Li;Zongxiang Lu;Ying Qiao;
- 0年
- 卷
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- 期刊
4.Consensus based distributed approach to lossy economic power dispatch of distributed energy resources
- Xing Hao;Zeng Pingliang;Mou Yuting;Wu Qiuwei;
- 0年
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5.Improvement and Application of Frequency Analysis Modules for Power System in High Proportion of Renewable Energy Situation
- 关键词:
- ;Aggregation model;Frequency regulations;High proportion of renewable energy;New energies;Primary frequencies;Primary frequency regulation;Renewable energies;Simplified aggregation model;System frequency;System inertia
- Gong, Haoyue;Zhou, Qinyong;Guo, Qiang;Qin, Xiaohui;Zhao, Shanshan;Su, Lining;He, Hailei
- 《Dianwang Jishu/Power System Technology》
- 2021年
- 45卷
- 12期
- 期刊
By analyzing the existing frequency models of the systems with new energy, it is found that there exists a large margin of error under some certain conditions. By adding the limiting link of prime mover on the basis of the existing model, and distinguishing the proportion coefficient of effective adjustment and the proportion coefficient of effective inertia of the system, the frequency model and the simplified aggregation model of the new energy system with the limiting link are proposed. Typical system examples show that the two models have good fitting prediction effects under different new energy access proportions and different types. They can well reflect the overall inertia and the primary frequency regulation characteristics of the system. The actual power system example, which contains new energy and DC access, shows that the proposed simplified aggregation model can accurately reflect the frequency variation of the power system and has engineering application values.© 2021, Power System Technology Press. All right reserved....6.基于?评估的多能流节能调度
- 关键词:
- 先进绝热压缩空气;?效率;风电;多能流;模拟退火算法;节能
- 吴晨曦;何章露;叶剑雄;洪晗笑
- 《电力科学与工程》
- 2021年
- 卷
- 08期
- 期刊
多能流系统可以实现能源的整体规划、多能互补和梯级利用,提高能源利用率。在此背景下,构建冷、热、电多能流系统模型,并引入压缩空气消纳风电,平衡能量。以热力学第二定律的"?分析"方法评估系统的节能指标,确定多能流系统的最节能调度方法。以某园区冬夏季节的典型风电出力和冷、热、电需求为例,采用模拟退火算法进行系统的节能调度并计算系统?效率。对系统是否使用先进绝热压缩空气对系统节能性的影响进行对比研究。研究结果表明,系统采用?评估节能指标,在具有先进绝热压缩空气时?效率更高,约为38%~58%。
...7.考虑分布式可再生电源和储能的智能配电网可靠性评估综述
- 关键词:
- 分布式可再生能源;储能;智能配电网;可靠性评估方法
- 刘凯诚;钟鸣;曾平良;朱良管
- 《电测与仪表》
- 2021年
- 卷
- 07期
- 期刊
储能是提高消纳高比例分布式可再生能源(DRG)的有效措施,是智能电网发展的重要组成部分之一。分布式可再生能源和储能的快速发展给配电网安全运行和供电可靠性带来巨大挑战和机遇,为此国内外学者近几年开展了大量研究,是目前热点研究领域之一。文中对计及DRG和储能的配电网可靠性评估研究进行系统分析,重点介绍DRG和储能对配电网可靠性的影响因素,建立含DRG和储能的配电网可靠性评估元件模型、DRG发电模型和储能充放电模型,从评估配电网可靠性的指标体系出发,分析适用高比例分布式可再生能源和储能的配电网评估方法,最后提出了在未来研究中急需解决的几个问题。
...8.Frequency-Constrained Stochastic Planning Towards a High Renewable Target Considering Frequency Response Support From Wind Power
- 关键词:
- Frequency security; frequency support; planning; high penetration ofvariable renewable energy; wind farms;UNIT COMMITMENT; TEST SYSTEM; EXPANSION
- Li, Hao;Qiao, Ying;Lu, Zongxiang;Zhang, Baosen;Teng, Fei
- 《IEEE TRANSACTIONS ON POWER SYSTEMS》
- 2021年
- 36卷
- 5期
- 期刊
The rotational inertia and primary frequency response capabilities of power systems are declining as synchronous generators (SGs) are replaced by inverter-based variable renewable energy (VRE) resources. Therefore, when a high VRE proportion is present, it becomes essential to include frequency security constraints in power system planning. Under this circumstance, the decline in SGs would deteriorate the system frequency response performance; thus, inverter-based resources are supposed to provide frequency response support. This paper presents a frequency-constrained stochastic planning method for high VRE share systems. Frequency response support from wind farms is considered in the planning process for the first time, and the unique characteristics of wind power support are addressed. Specifically, the uncertainty of and variations in wind power support capabilities are modeled from the field-measured data, and the optimal combination of various support schemes can be determined by introducing binary variables with novel linear constraints into the planning process. Moreover, the nonlinear frequency constraints are transformed and embedded in the planning model by the proposed computationally efficient adaptive piecewise linearization method. The planning is formulated as a stochastic optimization model to consider the VRE power uncertainty. Finally, case studies on the IEEE 30-bus system validate the proposed method, with results indicating time savings of 22%. Further, compared with the case that only SGs provide frequency support, the results based on the East China system demonstrate that considering wind power support can improve the VRE share from 49.5% to 79.7%. Index Terms-Frequency security, frequency support, planning,
...9.高比例新能源接入场景电力系统频率分析模型改进与应用
- 关键词:
- 高比例新能源;系统频率;简化聚合模型;系统惯量;一次调频
- 龚浩岳;周勤勇;郭强;秦晓辉;赵珊珊;苏丽宁;贺海磊
- 《电网技术》
- 2021年
- 卷
- 12期
- 期刊
分析现有含新能源系统频率模型进行仿真验证,发现其在部分工况下误差较大。通过在现有模型基础上增加原动机限幅环节,区分系统有效调差比例系数与有效惯量比例系数,提出了考虑限幅环节含新能源系统频率模型与简化聚合模型。通过典型系统算例表明,所提2种模型在不同新能源接入比例与类型下均有较好拟合预测效果,能够反映系统整体惯量和一次调频特性。通过实际含直流电源与新能源共同馈入电网算例表明,所提简化聚合模型可准确地反映系统频率变化情况,具有工程应用价值。
...10.Voltage control strategy of DC microgrid based on dynamic load allocation
- 关键词:
- Dynamic loads;Electric power plant loads;Transient analysis;Electric load shedding;Voltage regulators;Control strategies;Current reference;Load distributions;Secondary voltage control;Steady state voltage;Voltage control strategies;Voltage reference;Voltage sensitivity
- Xiao, Hongfei;Huang, Jinfeng;Chen, Xin;Lin, Yanyan;Wu, Chenxi
- 《Dianli Zidonghua Shebei/Electric Power Automation Equipment》
- 2021年
- 41卷
- 8期
- 期刊
U-I droop control has good adaptability and expansibility, and can be used in voltage control and load distribution of DC microgrid. Traditional droop control is difficult to balance the accuracy of steady-state voltage control with the accuracy of load distribution and its droop coefficient setting is limited. Therefore, a secondary voltage control strategy suitable for droop control is proposed. By setting the voltage reference value of droop control through voltage sensitivity, the DC bus voltage can be regulated quickly and the transient response speed of the system is improved. The load distribution coefficient is set accor-ding to the operation requirements, and the current reference value of droop control is updated to realize the required proportional load distribution among power units. Simulative results verify the effectiveness and adaptability of the proposed control strategy in the case of load mutation, droop coefficient change, distributed generation failure, communication interruption, and so on.© 2021, Electric Power Automation Equipment Press. All right reserved....
