当前位置: X-MOL 学术Sustain. Energy Grids Netw. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Microgrid dynamic combined power–heat economic-emission dispatch with deferrable loads and price-based energy storage elements and power exchange
Sustainable Energy Grids & Networks ( IF 5.4 ) Pub Date : 2021-04-02 , DOI: 10.1016/j.segan.2021.100479
Muwaffaq I. Alomoush

This research effort formulates and solves a biobjective dynamic combined heat and power economic-emission dispatch (DCHPED) of generation in a microgrid (MG). The MG encompasses fossil-fuel power and heat units, renewable resources, price-operated electrical and thermal energy storage elements, bidirectional-exchange of electrical power with the external grid, and fixed nondefferrable and deferrable loads. The two objective functions involve the total operation cost and the total gas emission produced by the fossil fuel units participating in the MG dynamic dispatch. Costs of emission tax and price-based energy storage and exchanges with the external grid are ingredients of the total operating costs. The Bernstein-search differential evolution (BSDE) algorithm is utilized to deal with the problem to obtain the day-ahead optimal schedules of available resources. The nonlinear nonconvex MG DCHPED optimization problem that has a large number of decision variables involves equality and inequality constraints, production costs, emission levels, taxes of released gases, ramp-rate limits of power-producing units, effects of valve-points in generating units, active power transmission losses, and feasible operation regions of cogenerating (CHP) units. The paper investigates the positive impacts of utilizing price-based electrical and thermal storage elements, deferrability of loads, and price-based power exchanges on the day-ahead MG operation cost. The paper also describes an approach to achieve the best compromise solution (BCS) of the MG DCHPED employing the fuzzy satisfying method (FSM). In addition, it shows that gas emissions and emission taxes in the MG can be both controlled by exchanging power with the external grid.



中文翻译:

具有可延期负载,基于价格的储能元件和电力交换的微电网动态热电经济联合调度

这项研究工作制定并解决了微电网(MG)中发电的双目标动态热电联产经济调度(DCHPED)。MG包括化石燃料发电和供热装置,可再生资源,价格经营的电能和热能存储元件,与外部电网的双向电力交换以及固定的不可延期和延期负荷。这两个目标函数涉及总运营成本和参与MG动态调度的化石燃料单元产生的总气体排放量。排放税和基于价格的能源存储以及与外部电网的交换成本是总运营成本的组成部分。利用伯恩斯坦搜索差分进化算法(BSDE)来解决该问题,以获取可用资源的日前最优调度。具有大量决策变量的非线性非凸MG DCHPED优化问题涉及等式和不等式约束,生产成本,排放水平,释放气体税,发电单元的斜率限制,发电单元中阀点的影响,有功功率传输损耗以及热电联产(CHP)单元的可行运行区域。本文研究了使用基于价格的蓄热元件,负载的延期性以及基于价格的电力交换对日前MG运营成本的积极影响。本文还介绍了一种使用模糊满足方法(FSM)来实现MG DCHPED的最佳折衷解决方案(BCS)的方法。此外,它表明,可通过与外部电网交换电力来控制MG中的气体排放和排放税。

更新日期:2021-04-11
down
wechat
bug