Assessing distributed energy resources for the energynet
First Claim
1. A method for simulating an electric power network having a plurality of transmission-level buses and connected electrical elements and a plurality of distribution-level buses and connected electrical elements, the method comprising:
- determining a model of the transmission-level buses and connected electrical elements, the model of the transmission-level buses including a plurality of transmission lines and a plurality of transmission electrical elements;
determining a model of the distribution-level buses and connected electrical elements, the model of the distribution-level buses including a plurality of distribution lines and a plurality of distribution electrical elements;
generating a single mathematical model by integrating the model of the transmission-level buses with the model of the distribution-level buses, wherein the single mathematical model further models the interdependency of the plurality of transmission lines and the plurality of transmission electrical elements included in the model of the transmission level buses and the plurality of distribution lines and the plurality of distribution electrical elements included in the model of the distribution-level buses;
simulating an operation of the electric power network with the single mathematical model; and
outputting data describing the simulated electric power network.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved method for analyzing power systems; in particular, power systems that may incorporate distributed energy resources (DER), that provides a thorough determination of the potential for network performance improvement that DER could provide, independent of non-network benefits DER could provide. The method incorporates an Energynet dataset simulating the power system, integrating transmission and distribution elements together and capable of evaluating the impacts of additions of real energy sources and/or reactive energy sources anywhere in the network. Such energy source additions are evaluated for their impact on a broad set of performance measures. The specific DER projects that would realize that potential improvement in network performance are characterized as an Optimal DER Portfolio. Network performance improvement attributable to the Optimal DER Portfolio is quantified in engineering and financial terms.
-
Citations
16 Claims
-
1. A method for simulating an electric power network having a plurality of transmission-level buses and connected electrical elements and a plurality of distribution-level buses and connected electrical elements, the method comprising:
-
determining a model of the transmission-level buses and connected electrical elements, the model of the transmission-level buses including a plurality of transmission lines and a plurality of transmission electrical elements; determining a model of the distribution-level buses and connected electrical elements, the model of the distribution-level buses including a plurality of distribution lines and a plurality of distribution electrical elements; generating a single mathematical model by integrating the model of the transmission-level buses with the model of the distribution-level buses, wherein the single mathematical model further models the interdependency of the plurality of transmission lines and the plurality of transmission electrical elements included in the model of the transmission level buses and the plurality of distribution lines and the plurality of distribution electrical elements included in the model of the distribution-level buses; simulating an operation of the electric power network with the single mathematical model; and outputting data describing the simulated electric power network.
-
-
2. A method for analyzing an electric power network having a plurality of transmission-level buses and connected electrical elements and a plurality of distribution-level buses and connected electrical elements, the method comprising:
-
determining a model of the transmission-level buses and connected electrical elements, the model of the transmission-level buses including a plurality of transmission lines and a plurality of transmission electrical elements; determining a model of the distribution-level buses and connected electrical elements, the model of the distribution-level buses including a plurality of distribution lines and a plurality of distribution electrical elements; generating a single mathematical model by integrating the model of the transmission-level buses with the model of the distribution-level buses, wherein the single mathematical model further models the interdependency of the plurality of transmission lines and the plurality of transmission electrical elements included in the model of the transmission level buses and the plurality of distribution lines and the plurality of distribution electrical elements included in the model of the distribution-level buses; assessing the modeled electric power network by characterizing power flow, losses, voltage profile and power factor; and outputting data describing at least one of the condition and the performance of the simulated electric power network. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for analyzing performance of a modeled electric power network having a plurality of transmission-level buses and connected electrical elements and a plurality of distribution-level buses and connected electrical elements, the method comprising:
-
determining a model of the transmission-level buses and connected electrical elements, the model of the transmission level buses including a plurality of transmission lines and a plurality of transmission electrical elements; determining a model of the distribution-level buses and connected electrical elements, the model of the distribution level buses including a plurality of distribution lines and a plurality of distribution electrical elements; generating a single mathematical model by integrating the model of the transmission-level buses with the model of the distribution-level buses, wherein the single mathematical model further models the interdependency of the plurality of transmission lines and the plurality of transmission electrical elements included in the model of the transmission level buses and the plurality of distribution lines and the plurality of distribution electrical elements included in the model of the distribution-level buses; assessing the modeled electric power network by characterizing power flow, losses, voltage profile and power factor; adding incremental real and reactive energy sources in locations of the modeled electric power network; assessing by load-flow analysis the condition and performance of the modeled electric power network with the added incremental real and reactive energy sources; determining whether the performance of the modeled electric power network is improved as a result of the added real and reactive energy sources; determining a set of added real and reactive energy sources that yields a greatest improvement in network performance; characterizing the set of added real and reactive energy sources as specific distributed energy resources; and outputting data describing the set of added real and reactive energy resources. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A computer readable medium comprising a computer program that when executed in a computer processor implements the steps of:
-
determining a model of the transmission-level buses and connected electrical elements, the model of the transmission-level buses including a plurality of transmission lines an a plurality of transmission electrical elements; determining a model of the distribution-level buses and connected electrical elements, the model of the distribution-level buses including a plurality of distribution lines and a plurality of distribution electrical elements; generating a single mathematical model by integrating the model of the transmission-level buses with the model of the distribution-level buses, wherein the single mathematical model further models the interdependency of the plurality of transmission lines and the plurality of transmission electrical elements included in the model of the transmission level buses and the plurality of distribution lines and the plurality of distribution electrical elements included in the model of the distribution-level buses; integrating models of the distribution-level buses and connected electrical elements with models of the transmission-level buses and connected electrical elements into a single mathematical model; simulating an operation of the electric power network with the single mathematical model; calculating at least one of a condition and a performance of the simulated electric power network; and outputting data describing at least one of a condition and a performance of the simulated electric power network. - View Dependent Claims (16)
-
Specification