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Evaluation of the Maximum Wind Power Penetration of a Power System Including Controllable Electric Water Heaters

机译：包括可控电热水器在内的电力系统最大风能渗透率评估

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摘要

In order to study the effect of load participating in the demand side frequency modulation (DSFM) of electric water heater on increasing the maximum wind power penetration of wind power integration system, an adaptive frequency modulation control strategy with variable user participation and a coordinated control strategy frequency modulation are proposed. Based on finite state machine (FSM), the state change of the load of electric water heaters (EWH) is given. And a power grid-connected wind generator model that includes the wind turbine model, wind speed model and the primary and secondary frequency modulation model of electric power system is constructed. The model is used to evaluate the maximum wind power penetration of power system under different frequency constraints through wind generator output simulation, power system frequency simulation and frequency quality analysis. The results show that the power system with electric water heaters participating in DSFM has strong wind power absorption ability. Under the condition of multi-group frequency constraints, the system's maximum wind power penetration is obviously improved. And its frequency stability is much greater than that of the power system relying on traditional frequency modulation.
机译：为了研究参与电热水器需求侧调频（DSFM）的负荷对提高风电集成系统最大风电渗透率的影响，提出了一种可变用户参与的自适应调频控制策略和协调控制策略。提出了频率调制。基于有限状态机（FSM），给出了电热水器（EWH）负载的状态变化。建立了包括风力发电机模型，风速模型以及电力系统的一次，二次调频模型在内的并网风力发电机模型。该模型用于通过风力发电机输出仿真，电力系统频率仿真和频率质量分析，评估不同频率约束下电力系统的最大风力渗透率。结果表明，参与DSFM的带电热水器的电力系统具有较强的风能吸收能力。在多组频率约束条件下，系统的最大风电穿透能力明显提高。而且它的频率稳定性比依靠传统频率调制的电力系统要高得多。

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