Future power systems will face more extreme operating condition scenarios, and system emergency dispatch will face more severe challenges. The use of distributed control is a well-designed way to handle this. It enabl...
详细信息
Future power systems will face more extreme operating condition scenarios, and system emergency dispatch will face more severe challenges. The use of distributed control is a well-designed way to handle this. It enables multi-energy complementation by means of autonomous communication, which greatly improves the flexibility of the grid. First, in the context of global energy conservation and emission reduction, this paper adopts the energy usage method of "renewable energy is the main source of energy, supplemented by thermal power and energy storage" to reduce the system abandoned wind (light) rate while supplementing the energy storage capacity. Second, a consensus algorithm is added to the system while considering the coordination between thermal units and energy storage. An "interface" for autonomous communication between thermal units and energy storage is created using the incremental cost of each agent. To address the recurring issue of power imbalance during emergency dispatch of the system, the consensus algorithm is enhanced so that the communication interval varies with the unit rate. This is based on the climbing characteristics of each thermal power unit. Finally, the effectiveness of the proposed method is verified in an IEEE-30 bus system.
The multidimensional moment problem is studied in terms of the Steiltjes transform. The diagonal step-by-step algorithm is constructed for the multidimensional moment problem. The set of solutions of the full multidim...
详细信息
Reconstructing high derivatives of noisy measurements is an important step in many control, identification and diagnosis problems. In this paper, a heuristic is proposed to address this challenging issue. The framewor...
详细信息
Law protects people from discrimination. algorithms, however, can easily circumvent the appearance of discrimination through the artful use of proxy variables. For instance, a lending algorithm may appear to satisfy a...
详细信息
Law protects people from discrimination. algorithms, however, can easily circumvent the appearance of discrimination through the artful use of proxy variables. For instance, a lending algorithm may appear to satisfy a legal standard by ignoring race, but the same algorithm might deny loan applicants on the basis of having attended a particular high school—a variable that may closely correlate with race. An algorithm that assesses work performance and recommends promotions may ignore sex, but the same algorithm might penalize employees who take, on average, more paternity leave—a variable that may closely correlate with sex. The abuse of proxies cuts across political views on affirmative action. For example, an admissions committee might technically ignore race consistent with recent changes to Equal Protection rules, but the same committee might consider variables that are highly correlated to race, such as zip code, high school, and the income of parents, in order to achieve a university’s diversity goals. Today, there is no clear legal test for regulating the use of variables that proxy for race and other protected classes and classifications. This Article develops such a test. Decision tools that use proxies are narrowly tailored when they exhibit the weakest total proxy power. The test is necessarily comparative. Thus, if two algorithms predict loan repayment or university academic performance with identical accuracy rates, but one uses zip code and the other does not, then the second algorithm can be said to have deployed a more equitable means for achieving the same result as the first algorithm. Scenarios in which two algorithms produce comparable and non-identical results present a greater challenge. This Article suggests that lawmakers can develop caps to permissible proxy power over time, as courts and algorithm builders learn more about the power of variables. Finally, the Article considers who should bear the burden of producing less discriminatory alter
We introduce a method based on Conformal Prediction (CP) to quantify the uncertainty of full ranking algorithms. We focus on a specific scenario where n + m items are to be ranked by some "black box" algorit...
详细信息
This paper studies the problem of finding a set of p connected vertices in a block graph. The center and median criteria are considered at the same time. Two variants of the problem are discussed. One is called the Pa...
详细信息
The usual division algorithms on and [i] measure the size of remainders using the norm function. These rings are Euclidean with respect to several functions. The pointwise minimum of all Euclidean functions f: R \ 0 ...
详细信息
We describe an algorithm to rigorously compute the power series expansion at a CM point of a weight 2 cusp form of level coprime to 6. Our algorithm works by bounding the denominators that appear due to ramification, ...
详细信息
In [2] an effective algorithm for inverting polynomial automorphisms was proposed. Some further improvements and an estimation of the computational complexity for the algorithm mentioned above were discussed in [1]. W...
详细信息
暂无评论