摘要
在新兴电力市场中,配电网运营商和微电网运营商之间可以进行双边交易。风光发电设备大量接入带来的不确定条件下,配电网与微电网处于在规划层面考虑多主体双边能源交易影响的合作博弈状态。为了解决传统配微电网协同规划问题的多重非凸性,文中提出一种基于交替优化方法的配微电网协同规划策略。通过交替优化将非连续协同规划问题转变为双层迭代求解过程,上层利用纳什议价在下层生成的凸子集中解得交易电量和支付策略,下层利用从上层获得的交易变量局部确定个体规划问题,将上层双边市场交易出清问题分解为交易电量求解与交易电费求解2个子问题,运用交替方向乘子法先后对2个子问题进行求解。最后,在IEEE 33节点系统中进行算例仿真,结果表明该模型可以有效提升交易双方的运营效益。
In the emerging electricity market,bilateral transactions are conducted between distribution-grid operators and micro-grid operators.Under the uncertainty caused by the large-scale integration of wind and solar generation,the cooperation game between the distribution-grid and the micro-grid is analyzed at the planning level.The impact of multi-agent bilateral energy transactions is considered in this approach.To address the multiple non-convexities in traditional coordinated planning of distribution-grid and micro-grid,an alternating optimization-based strategy is proposed.Through the alternating optimization process,the discontinuous coordinated planning problem is transformed into a bi-level iterative solving process.In the upper level,Nash bargaining is applied to determine the traded electricity and payment strategies within a convex subset generated by the lower level.In the lower level,local individual planning problems are solved using trading variables obtained from the upper level.The market-clearing problem is decomposed into two subproblems,electricity transaction and payment settlement.The alternating direction method of multipliers is used sequentially to solve these subproblems.Case simulations on the IEEE33-bus system demonstrate that the proposed model effectively enhances the operational benefits for both trading parties.
作者
王书征
吴守豪
吴志
孙玉柱
WANG Shuzheng;WU Shouhao;WU Zhi;SUN Yuzhu(School of Electrical Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China;School of Electrical Power Engineering,Southeast University,Nanjing 210096,China)
出处
《电力工程技术》
北大核心
2025年第3期97-107,227,共12页
Electric Power Engineering Technology
基金
国家自然科学基金资助项目(52177077)。
关键词
双边交易
协同规划
合作博弈
纳什议价
交替优化
双层求解
bilateral transactions
collaborative planning
cooperative game
Nash bargaining
alternate optimization
two-layer solution
