基于小区源-储-荷协同的微网多能协调控制策略
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TM73

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广东省科技计划项目(2020A050515003)


Multi-energy coordinated control strategy based on source-storage-load micro network in community
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    摘要:

    小区光伏配备的储能装置容量有限且运行模式单一,不能充分发挥储能作用。文中将天燃气储气备用、空调可控负荷产生的虚拟储能与储能装置一起组成储能系统,提出使储能系统在光伏平抑波动、电网有功功率波动和峰谷电价套利3种模式下协调运行的控制策略。在光伏平抑波动和电网有功功率波动模式中,利用小波包分解得到虚拟储能输出功率参考指令,根据空调、燃气管道等状态信息得到虚拟储能输出功率,储能装置根据荷电状态选择性地作为虚拟储能的后备。峰谷电价套利模式中,利用储能装置空闲时段并结合分时电价信息进行充放电控制。3种模式协调运行,可实现小区源-储-荷能量管理。在Matlab中仿真不同模式组合下储能系统的输出功率,验证了所提控制策略的正确性和有效性。

    Abstract:

    In view of the problem that the energy storage device equipped with photovoltaic(PV) in the community has limited capacity and single operation mode, the energy storage device and virtual energy storage generated by linepack reserves and controllable load of air conditioning are combined into an energy storage system. The technology to coordinate the control of the energy storage system under three modes are proposed, including smoothing PV fluctuation, smoothing grid active power fluctuation and peak and valley electricity price arbitrage. In the mode of smoothing PV fluctuation and smoothing grid active power fluctuation, the wavelet packet decomposition is used to obtain the reference instruction of virtual energy storage output power. The instruction of virtual energy storage output power is determined according to the state information of air conditioner, gas pipeline and so on. The energy storage device is selectively used as the backup of virtual energy storage according to the state of S. In peak-valley electricity price arbitrage mode, the energy storage device is used to charge and discharge during idle period combined with time-of-use electricity price information. Three modes are coordinated to realize source-storage-losd energy management. The output power of the energy storage system under different mode combination is obtained by Matlab simulation, which verifies the correctness and effectiveness of the control technology.

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引用本文

杨金文,吴杰康,庄仲,梁继深,何家裕,余方明.基于小区源-储-荷协同的微网多能协调控制策略[J].电力工程技术,2021,40(1):40-49

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历史
  • 收稿日期:2020-07-31
  • 最后修改日期:2020-08-26
  • 录用日期:2020-05-08
  • 在线发布日期: 2021-02-03
  • 出版日期: 2021-01-28