Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems
Power electronic systems are intrinsically hybrid systems, consisting of continuous states and discrete events. The hybrid nature makes their accurate and efficient simulation challenging to achieve. A novel approach called discrete state event-driven (DSED) is able to solve such hybrid systems effi...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9351911/ |
| _version_ | 1818351195526266880 |
|---|---|
| author | Jiahe Ju Bochen Shi Zhujun Yu Yicheng Zhu Zhengming Zhao |
| author_facet | Jiahe Ju Bochen Shi Zhujun Yu Yicheng Zhu Zhengming Zhao |
| author_sort | Jiahe Ju |
| collection | DOAJ |
| description | Power electronic systems are intrinsically hybrid systems, consisting of continuous states and discrete events. The hybrid nature makes their accurate and efficient simulation challenging to achieve. A novel approach called discrete state event-driven (DSED) is able to solve such hybrid systems efficiently, but it shows unsatisfying simulation speed when calculating circuits containing parasitic parameters, namely stiff systems. Since the effect of parasitic parameters brought by connection lines can be destructive when they produce voltage peak or resonance, it is crucial to evaluate the impact of parasitic elements during the design phase of the converters by simulation. This paper proposes a backward DSED (BDSED) approach that can solve stiff systems efficiently by cooperating with the event-driven framework. The BDSED adopts a semi-variable-step-variable-order (S-VSVO) mechanism for integrating continuous states and uses interpolation method for dealing with discrete events. With this simulation approach, the effect of parasitic elements in power electronic systems can be analyzed more efficiently compared to other commercial software. In a case study, the proposed approach shows 60 times faster in simulation speed compared with ode15s in Simulink and more than 3 times faster compared with stiff solver in a commercial software called PLECS at the same level of accuracy. |
| first_indexed | 2024-12-13T18:33:53Z |
| format | Article |
| id | doaj.art-ae829d3244fd4ea680ab53c5716491cb |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T18:33:53Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ae829d3244fd4ea680ab53c5716491cb2022-12-21T23:35:25ZengIEEEIEEE Access2169-35362021-01-019285732858110.1109/ACCESS.2021.30584179351911Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic SystemsJiahe Ju0https://orcid.org/0000-0001-8132-2519Bochen Shi1https://orcid.org/0000-0003-4603-1892Zhujun Yu2https://orcid.org/0000-0001-7427-1952Yicheng Zhu3https://orcid.org/0000-0002-7280-4804Zhengming Zhao4https://orcid.org/0000-0003-0173-3946Department of Electrical Engineering, State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing, ChinaDepartment of Electrical Engineering, State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing, ChinaDepartment of Electrical Engineering, State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing, ChinaDepartment of Electrical Engineering, State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing, ChinaDepartment of Electrical Engineering, State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment, Tsinghua University, Beijing, ChinaPower electronic systems are intrinsically hybrid systems, consisting of continuous states and discrete events. The hybrid nature makes their accurate and efficient simulation challenging to achieve. A novel approach called discrete state event-driven (DSED) is able to solve such hybrid systems efficiently, but it shows unsatisfying simulation speed when calculating circuits containing parasitic parameters, namely stiff systems. Since the effect of parasitic parameters brought by connection lines can be destructive when they produce voltage peak or resonance, it is crucial to evaluate the impact of parasitic elements during the design phase of the converters by simulation. This paper proposes a backward DSED (BDSED) approach that can solve stiff systems efficiently by cooperating with the event-driven framework. The BDSED adopts a semi-variable-step-variable-order (S-VSVO) mechanism for integrating continuous states and uses interpolation method for dealing with discrete events. With this simulation approach, the effect of parasitic elements in power electronic systems can be analyzed more efficiently compared to other commercial software. In a case study, the proposed approach shows 60 times faster in simulation speed compared with ode15s in Simulink and more than 3 times faster compared with stiff solver in a commercial software called PLECS at the same level of accuracy.https://ieeexplore.ieee.org/document/9351911/Dynamic hybrid systemevent-driven simulationpower electronic systemstiff system simulation |
| spellingShingle | Jiahe Ju Bochen Shi Zhujun Yu Yicheng Zhu Zhengming Zhao Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems IEEE Access Dynamic hybrid system event-driven simulation power electronic system stiff system simulation |
| title | Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems |
| title_full | Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems |
| title_fullStr | Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems |
| title_full_unstemmed | Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems |
| title_short | Backward Discrete State Event-Driven Approach for Simulation of Stiff Power Electronic Systems |
| title_sort | backward discrete state event driven approach for simulation of stiff power electronic systems |
| topic | Dynamic hybrid system event-driven simulation power electronic system stiff system simulation |
| url | https://ieeexplore.ieee.org/document/9351911/ |
| work_keys_str_mv | AT jiaheju backwarddiscretestateeventdrivenapproachforsimulationofstiffpowerelectronicsystems AT bochenshi backwarddiscretestateeventdrivenapproachforsimulationofstiffpowerelectronicsystems AT zhujunyu backwarddiscretestateeventdrivenapproachforsimulationofstiffpowerelectronicsystems AT yichengzhu backwarddiscretestateeventdrivenapproachforsimulationofstiffpowerelectronicsystems AT zhengmingzhao backwarddiscretestateeventdrivenapproachforsimulationofstiffpowerelectronicsystems |