Zheng Zhuang

Zheng Zhuang
City University of Hong Kong | CityU · Department of Architecture and Civil Engineering

Doctor of Engineering

About

11
Publications
3,725
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168
Citations

Publications

Publications (11)
Article
Smart home energy management (SHEM) with residential photovoltaic (PV)-battery systems is a complicated issue with different facets. An integrated SHEM model covering the essential functions is missing. Meanwhile, residential PV-battery systems' optimal operations with renewable energy exchanges and imperfect forecasts are still open challenges. In...
Article
The residential PV-battery system is becoming economically viable due to technological advances. Selecting optimum investment portfolios and operation strategies are still the challenges faced by homeowners. This study proposed an integrated stochastic sizing-operating framework for optimal design and operation of grid-connected residential photovo...
Article
Full-text available
The building sector takes a large proportion of electricity consumption and carbon emission in high-density urban areas. To reduce the carbon emissions and use energy more efficiently in the building sector, home energy management system (HEMS) is proposed and used. In the HEMS, the prediction of electricity consumption in the short-term future is...
Article
Full-text available
The growing interest in green building is driving the development of energy efficiency building models. One of the essential elements is an effective and efficient Energy Management system. Traditionally, the system contains lots of meters measuring each appliance. Non-Intrusive Load Monitoring (NILM) is a technique for estimating power consumption...
Conference Paper
Full-text available
Buildings represent a large part of energy consumption and carbon emissions in high-density urban areas. Home energy management system (HEMS) is proposed to relieve this problem. Prediction of energy consumption in the short-term future serves as an intelligent tool to make decisions for controlling and optimizing the HEMS. In this paper, one resea...
Conference Paper
Full-text available
The growing interest in green building is driving the development of energy efficiency building models. One of the essential elements is an effective and efficient Energy Management system. Traditionally, the system contains lots of meters measuring each appliance. Non-Intrusive Load Monitoring (NILM) is a technique for estimating power consumption...
Article
Full-text available
Smart meters generate a massive volume of energy consumption data which can be analyzed to recover some interesting and beneficial information. Non-intrusive load monitoring (NILM) is one important application fostered by the mass deployment of smart meters. This paper presents a supervised event-based NILM approach for non-linear appliance activit...

Questions

Questions (2)
Question
Hi, recently, I am doing power flow simulation research using detailed dynamic domestic profiles with pv panels. Only net real power, net apparent power, the solar real power and solar apparent power profiles are measured now. How can I conduct power flow simulation using these measured profiles? As I know, for static power flow simulations, both spot real power and reactive power are needed for simulation. Should I also use dynamic active power and reactive power profiles of domestic loads? Any ideas are welcomed~ Thank you so much!
Question
Hi, I have a question about Grid tied PV systems. Suppose PV panels are used to support domestic loads with priority and it is allowed to export surplus electricity of PV panels to the grid. My question is: when PV exporting electricity to the grid, the Real power P is negative, but how about the sign or directions of reactive power Q, and the apparent power S? Besides, I am doing power flow simulation using load profiles containing PV profiles, but I am deeply confused with the direction of reactive power. (suppose net real and net apparent power, PV real power and apparent power are measured or known). Do you have any ideas about this simulation?