Mechanisms and Policies for Controlling Distributed Solar Capacity

Mechanisms and Policies for Controlling Distributed Solar Capacity
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分布式光伏发电的控制机制和政策

DOI:
10.1145/3219811
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发表时间:
2018
影响因子:
4.1
通讯作者:
Taneja, Jay
Taneja, Jay
中科院分区:
计算机科学4区
文献类型:
--
作者:
Bashir, Noman;Irwin, David;Shenoy, Prashant;Taneja, Jay

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间歇性并网太阳能发电能力的迅速扩张,使得平衡电力实时供需的工作越来越具有挑战性。最近的工作提出了一种机制,通过使软件将其限制为其随时间变化的最大输出的一小部分,从而主动控制各个站点电网中的太阳能。然而,虽然强制每个太阳能站点的时变最大输出的同等比例会导致所有站点的太阳能短期贡献“公平”,但却不会导致太阳能的“公平”长期贡献。在控制分布式太阳能容量时,执行公平的长期能源获取是很重要的,因为限制太阳能输出会影响用户收到的净计量补偿和存储多余太阳能所需的电池容量。这种差异源于在实施“公平”接入电网以贡献太阳能方面的根本差异,与类似的公平共享网络和处理器相比。为了解决这个问题,我们首先提出了一种集中式和分布式算法,以实现分布式太阳能容量的控制,从而实现公平的电网能源接入。然后,我们提出了多个政策,展示了公用事业如何利用这种新的分布式速率限制机制来减少间歇性太阳能发电对电网需求的变化。
The rapid expansion of intermittent grid-tied solar capacity is making the job of balancing electricity’s real-time supply and demand increasingly challenging. Recent work proposes mechanisms for actively controlling solar power in the grid at individual sites by enabling software to cap it as a fraction of its time-varying maximum output. However, while enforcing an equal fraction of each solar site’s time-varying maximum output results in “fair” short-term contributions of solar power across all sites, it does not result in “fair” long-term contributions of solar energy. Enforcing fair long-term energy access is important when controlling distributed solar capacity, since limits on solar output impact the compensation users receive for net metering and the battery capacity required to store excess solar energy. This discrepancy arises from fundamental differences in enforcing “fair” access to the grid to contribute solar energy, compared to analogous fair sharing in networks and processors. To address the problem, we first present both a centralized and distributed algorithm to enable control of distributed solar capacity that enforces fair grid energy access. We then present multiple policies that show how utilities can leverage this new distributed rate-limiting mechanism to reduce variations in grid demand from intermittent solar generation.
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