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Dynamic Equivalent Circuit of Cogeneration System and Its Working Method

一种热电联供、系统动态的技术，应用在效电路领域，能够解决无法反应热力系统动态过程等问题，达到保护详细参数信息、易开发、避免仿真误差的效果

Active Publication Date: 2022-04-15
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the simulation system with "electricity" as the core, equipment models such as heat and gas are added to the power analysis tool. The model is simple and cannot reflect the dynamic process of the thermal system.

Method used

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  • Dynamic Equivalent Circuit of Cogeneration System and Its Working Method
  • Dynamic Equivalent Circuit of Cogeneration System and Its Working Method
  • Dynamic Equivalent Circuit of Cogeneration System and Its Working Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a dynamic equivalent circuit of a cogeneration system;

[0037] Such as figure 1 As shown, the dynamic equivalent circuit of the combined heat and power system includes:

[0038] Use the controlled source to characterize the thermoelectric coupling source; use the equivalent inductance to characterize the delay of the heat transfer pipeline; use the equivalent resistance to characterize the heat load and heat loss of the heat transfer pipe; use the equivalent capacitance to characterize the hot water storage tank.

[0039] Further, the circuit includes: a first branch and a second branch;

[0040] Among them, the first branch includes: sequentially connected input terminals, controlled voltage source U e , resistance R e and output;

[0041] Among them, the second branch includes: sequentially connected input terminals, controlled current source and ground terminal;

[0042] Among them, the first branch and the second branch are used to r...

Embodiment 2

[0101] This embodiment provides a dynamic equivalent circuit simulation method for a combined heat and power system;

[0102] A dynamic equivalent circuit simulation method for cogeneration systems, including:

[0103] Use the controlled source to characterize the thermoelectric coupling source; use the equivalent inductance to characterize the heat transfer pipeline delay; use the equivalent resistance to characterize the heat load and heat loss of the heat transfer pipe; use the equivalent capacitance to characterize the hot water storage tank;

[0104] At an electrical load of R e In the case of , the supply voltage of the thermoelectric coupling source is U e ;

[0105] The heat flow flows out from the waste heat recovery system of the thermoelectric coupling source; the heat flow flows through the heating pipeline after the transmission delay time, and generates heat loss;

[0106] If both the first switch and the second switch are turned on, all the heat flow is used fo...

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Abstract

The invention discloses a dynamic equivalent circuit of a cogeneration system and a working method thereof. The controlled source is used to characterize the thermoelectric coupling source; the equivalent inductance is used to characterize the delay of the heat transport pipeline; the equivalent resistance is used to characterize the heat load and the heat loss of the heat transport pipeline; The hot water storage tank is characterized by equivalent capacitance. Using the circuit model to uniformly represent the two heterogeneous energy sources of thermoelectricity, a single power simulation tool can be used to simulate the combined heat and power system, making the simulation system simple in structure, easy to develop and maintain.

Description

technical field [0001] The invention relates to the technical field of cogeneration simulation technology, in particular to a dynamic equivalent circuit of a cogeneration system and a working method thereof. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] Combined heating and power system (Combining heating and power system) has received extensive attention from governments and enterprises in various countries due to its advantages of high primary energy utilization efficiency and safe and reliable energy supply. Electric heating is a heterogeneous energy source, with great differences in physical characteristics and disciplines, and inconsistent characterization methods and research methods. Existing simulation systems use various types of energy simulation software to co-simulate multi-energy systems in the form of data communica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/00H10N10/17H10N10/13
CPCG01N25/00F24H9/2021F24H9/1818H10N10/17H10N10/13F24H2250/02F24H2250/04F24H2250/08
Inventor 孙波陈晶张承慧
Owner SHANDONG UNIV