多分布式电源并网AVC协同控制仿真模型
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摘要
随着分布式发电系统大规模接入配电网,由于接入点多、拓扑结构复杂和单相接入等因素,导致传统的自动电压控制(AVC)方法难以有效地抑制光伏功率波动带来的配电网电压稳定问题。文章提出了基于多接入点分布式发电系统协同鲁棒控制的分层预测AVC控制策略。首先,根据分布式发电系统输出功率特性,建立特定配网区域内各分布式电源的分布式模型预测控制策略;在此基础上,根据配电网拓扑结构及分布式电源接入点配置情况,建立基于动态协调鲁棒控制的配网级AVC控制模型;最后,基于ADPSS仿真平台建立了多分布式电源接入的配电网AVC仿真模型。通过仿真表明,所提出的控制策略能够有效地抑制多点分布式发电系统功率波动引起的配网节点电压波动,显著地提高配网电压稳定性。
With the large-scale access of distributed generation systems to distribution networks,many access points,complex topologies and single-phase access,traditional automatic voltage control(AVC)methods are difficult to effectively suppress PV power fluctuations. Distribution system voltage stability problem. To this end, this paper proposes a hierarchical prediction AVC control strategy based on cooperative robust control of multi-access point distributed generation systems. Firstly,according to the output power characteristics of the distributed generation system,a distributed model predictive control strategy for distributed power sources in a specific distribution network area is established. On this basis,based on the distribution network topology and the configuration of distributed power access points,The distribution-level AVC control model based on dynamic coordinated robust control;finally,based on ADPSS simulation platform to build simulation models AVC and more distributed power distribution network access. The simulation results show that the proposed control strategy can effectively suppress multi-point distribution. The voltage fluctuation of the distribution network caused by the power fluctuation of the power generation system,and significantly improve the voltage stability of the distribution network.
With the large-scale access of distributed generation systems to distribution networks,many access points,complex topologies and single-phase access,traditional automatic voltage control(AVC)methods are difficult to effectively suppress PV power fluctuations. Distribution system voltage stability problem. To this end, this paper proposes a hierarchical prediction AVC control strategy based on cooperative robust control of multi-access point distributed generation systems. Firstly,according to the output power characteristics of the distributed generation system,a distributed model predictive control strategy for distributed power sources in a specific distribution network area is established. On this basis,based on the distribution network topology and the configuration of distributed power access points,The distribution-level AVC control model based on dynamic coordinated robust control;finally,based on ADPSS simulation platform to build simulation models AVC and more distributed power distribution network access. The simulation results show that the proposed control strategy can effectively suppress multi-point distribution. The voltage fluctuation of the distribution network caused by the power fluctuation of the power generation system,and significantly improve the voltage stability of the distribution network.
引文
[1]滕云,张铁岩,陈哲.多能源互联系统优化运行与控制技术研究现状与前景展望[J].可再生能源,2018,36(3):467-474.
[2] Guo R,Cbiang H P,Wu H,et al. A two-level systemwide automatic voltage control system[A]. Power and Energy Society General Meeting[C]. Blimreapolis:IEEE,2012.1-6.
[3] Xu Y,Dong Z Y,Meng Ke,et al. Multi-objective dynamic var planning against short-term voltage instability usurg decomposition-based evolutionary algoritluu[J].IEEE Transactions on Power Systems,2014,29(6):2813-2822.
[4]李岩,滕云,冷欧阳,等.风电交直流通道互联电力系统暂态稳定线性变参数鲁棒反馈控制[J].可再生能源,2018,36(4):557-562.
[5]王晗.多分布式电源协同控制研究[D].济南:济南大学,2017.
[6]鲍薇,胡学浩,何国庆,等.分布式电源并网标准研究[J].电网技术,2012,36(11):46-52.
[7]沈鑫,曹敏.分布式电源并网对于配电网的影响研究[J].电工技术学报,2015,30(S1):346-351.
[8]李鹏,廉超,李波涛.分布式电源并网优化配置的图解方法[J].中国电机工程学报,2009,29(4):91-96.
[9]田源,朱永强,夏瑞华,等.电能质量讲座(第七讲)与分布式电源并网有关的电能质量标准和规范[J].电器与能效管理技术,2018(3):70-75.
[10]徐硕,鲁杰,庞博,等.联合分布式电源并网应用的储能技术发展现状[J].电器与能效管理技术,2018(11):14-20.
[2] Guo R,Cbiang H P,Wu H,et al. A two-level systemwide automatic voltage control system[A]. Power and Energy Society General Meeting[C]. Blimreapolis:IEEE,2012.1-6.
[3] Xu Y,Dong Z Y,Meng Ke,et al. Multi-objective dynamic var planning against short-term voltage instability usurg decomposition-based evolutionary algoritluu[J].IEEE Transactions on Power Systems,2014,29(6):2813-2822.
[4]李岩,滕云,冷欧阳,等.风电交直流通道互联电力系统暂态稳定线性变参数鲁棒反馈控制[J].可再生能源,2018,36(4):557-562.
[5]王晗.多分布式电源协同控制研究[D].济南:济南大学,2017.
[6]鲍薇,胡学浩,何国庆,等.分布式电源并网标准研究[J].电网技术,2012,36(11):46-52.
[7]沈鑫,曹敏.分布式电源并网对于配电网的影响研究[J].电工技术学报,2015,30(S1):346-351.
[8]李鹏,廉超,李波涛.分布式电源并网优化配置的图解方法[J].中国电机工程学报,2009,29(4):91-96.
[9]田源,朱永强,夏瑞华,等.电能质量讲座(第七讲)与分布式电源并网有关的电能质量标准和规范[J].电器与能效管理技术,2018(3):70-75.
[10]徐硕,鲁杰,庞博,等.联合分布式电源并网应用的储能技术发展现状[J].电器与能效管理技术,2018(11):14-20.